Automatic Transaxle - 4t65-e (Introduction, Service & Replacement) Buick Rendezvous I

Transmission Fluid Temperature (TFT) Sensor Specifications

Transmission Fluid Temperature (TFT) Sensor Specifications

Fastener Tightening Specifications

Fastener Tightening Specifications

Transmission General Specifications

Transmission General Specifications

Fluid Capacity Specifications

Fluid Capacity Specifications

Range Reference

Range Reference

Shift Solenoid Valve State and Gear Ratio

Shift Solenoid Valve State and Gear Ratio

Shift Speed

Shift Speed

Transmission Internal Mode Switch Logic

Transmission Internal Mode Switch Logic

Line Pressure

Line Pressure Specifications

Component Resistance

Component Resistance

Automatic Transmission Schematic Icons

Automatic Transmission Schematic Icons Icon Icon Definition NOTE: The OBD II symbol is used on the circuit diagrams in order to alert the technician that the circuit is essential for proper OBD II emission control circuit operation. Any circuit which fails and causes the malfunction indicator lamp (MIL) to turn ON, or causes emissions-related component damage, is identified as an OBD II circuit

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Automatic Transmission Inline 20-Way Connector End View (3.4L)

AT Inline 20-way Connector, Engine Side Connector End Connector Part Information 15305235 20-Way F Micro-Pack 100W Series (GY) Pin Wire Color Circuit No. Function A L-GN 1222 1-2 Shift Solenoid Valve Control B YE/BK 1223 2-3 Shift Solenoid Valve Control C RD/BK 1228 PC Solenoid Valve High Control D L-BU/WH 1229 PC Solenoid Valve Low Control E PK 1339 Ignition 1 Voltage F BK/WH 771 Transmission Range Signal A G YE 772 Transmission Range Signal B H GY 773 Transmission Range Signal C J WH 776 Transmission Range Signal P K BK/WH 451 Ground L YE/BK 1227 TFT Sensor Signal M BK 2762 Low Reference N-R - - Not Used S RD/BK 1230 ISS High Signal T BN 418 TCC PWM Solenoid Valve Control U YE 657 TCC Release Switch Signal V D-BU/WH 1231 ISS Low Signal W - - Not Used

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AT Inline 20-way Connector, Transmission Side Connector End Connector Part Information 15409446 20-Way M Micro-Pack 100W Lock Assist/Seal (BK) Pin Wire Color Circuit No. Function A L-GN 1222 1-2 Shift Solenoid Valve Control B YE 1223 2-3 Shift Solenoid Valve Control C PU 1228 PC Solenoid Valve High Control D L-BU/WH 1229 PC Solenoid Valve Low Control E RD 839 Ignition 1 Voltage F RD/BK 771 Transmission Range Signal A G D-GN/WH 772 Transmission Range Signal B H YE/BK 773 Transmission Range Signal C J GY/WH 776 Transmission Range Signal P K BK/WH 1050 Ground L BN 1227 TFT Sensor Signal M GY 452 Low Reference N-R - - Not Used S BK 1230 ISS High Signal T TN 418 TCC PWM Solenoid Valve Control U WH 1804 TCC Release Switch Signal V D-GN 1231 ISS Low Signal W OG 1786 Park/Neutral Signal

Automatic Transmission Inline 20-Way Connector End View (3.6L)

AT Inline 20-way Connector, Engine Side Connector End Connector Part Information 12186609 20-Way F Micro-Pack 100W Series (GY) Pin Wire Color Circuit No. Function A L-GN 1222 1-2 Shift Solenoid Valve Control B YE/BK 1223 2-3 Shift Solenoid Valve Control C RD/BK 1228 PC Solenoid Valve High Control D L-BU/WH 1229 PC Solenoid Valve Low Control E PK 839 Ignition 1 Voltage F BK/WH 771 Transmission Range Signal A G YE 772 Transmission Range Signal B H GY 773 Transmission Range Signal C J WH 776 Transmission Range Signal P K BK/WH 451 Ground L YE/BK 1227 TFT Sensor Signal M BK 2762 Low Reference N-R - - Not Used S RD/BK 1230 ISS High Signal T BN 418 TCC PWM Solenoid Valve Control U YE 1804 TCC Release Switch Signal V D-BU/WH 1231 ISS Low Signal W OG/BK 1786 Park/Neutral Signal

AT Inline 20-way Connector, Transmission Side Connector End Connector Part Information 15409446 20-Way M Micro-Pack 100W Lock Assist/Seal (BK) Pin Wire Color Circuit No. Function A L-GN 1222 1-2 Shift Solenoid Valve Control B YE 1223 2-3 Shift Solenoid Valve Control C PU 1228 PC Solenoid Valve High Control D L-BU/WH 1229 PC Solenoid Valve Low Control E RD 839 Ignition 1 Voltage F RD/BK 771 Transmission Range Signal A G D-GN/WH 772 Transmission Range Signal B H YE/BK 773 Transmission Range Signal C J GY/WH 776 Transmission Range Signal P K BK/WH 1050 Ground L BN 1227 TFT Sensor Signal M GY 452 Low Reference N-R - - Not Used S BK 1230 ISS High Signal T TN 418 TCC PWM Solenoid Valve Control U WH 1804 TCC Release Switch Signal V D-GN 1231 ISS Low Signal W OG 1786 Park/Neutral Signal

Automatic Transmission Internal Connector End Views

1-2 Shift Solenoid Valve Connector, Wiring Harness Side Connector End Connector Part Information 12162201 2-Way F Metri-Pack 150 Series (NA) Pin Wire Color Circuit No. Function A RD 839 Ignition 1 Voltage B L-GN 1222 1-2 Shift Solenoid Valve Control

2-3 Shift Solenoid Valve Connector, Wiring Harness Side Connector End Connector Part Information 12162201 2-Way F Metri-Pack 150 Series (NA) Pin Wire Color Circuit No. Function A RD 839 Ignition 1 Voltage B YE 1223 2-3 Shift Solenoid Valve Control

Automatic Transmission Fluid Pressure Manual Valve Position Switch Connector, Wiring Harness Side Connector Part Information 12146094 2-Way F Metri-Pack 150 Series (GY) Pin Wire Color Circuit No. Function A WH 1804 TCC Release Switch Signal B - - Not Used

Input Speed Sensor Connector, Wiring Harness Side Connector Part Information 12162201 2-Way F Metri-Pack 150.2 Series (NA) Pin Wire Color Circuit No. Function A D-GN 1231 AT ISS Low Signal B BK 1230 AT ISS High Signal

Pressure Control Solenoid Valve Connector, Wiring Harness Side Connector Part Information 12146094 2-Way F Metri-Pack 150 Series (GY) Pin Wire Color Circuit No. Function A PU 1228 PC Solenoid Valve High Control B L-BU 1229 PC Solenoid Valve Low Control

Torque Converter Clutch Pulse Width Modulated Solenoid Valve Connector, Wiring Harness Side Connector Part Information 12162202 2-Way F Metri-Pack 150.2 Series (BU) Pin Wire Color Circuit No. Function A RD 839 Ignition 1 Voltage B TN 418 TCC PWM Solenoid Valve Control

Transmission Fluid Temperature Sensor Connector, Wiring Harness Side Connector Part Information 12047662 2-Way F Metri-Pack 150 Series (BK) Pin Wire Color Circuit No. Function A BN 1227 TFT Sensor Signal B GY 452 Low Reference

Transmission Internal Mode Switch Connector, Wiring Harness Side Connector Part Information 15336500 6-Way F Metri-Pack 150.2 Series (GN) Pin Wire Color Circuit No. Function A OG 1786 Park/Neutral Signal B GY/WH 776 Transmission Range Signal P C YE/BK 773 Transmission Range Signal C D D-GN/WH 772 Transmission Range Signal B E RD/BK 771 Transmission Range Signal A F BK/WH 1050 Ground

Automatic Transmission Related Connector End Views

Transmission Control Module (TCM) Connector, Engine Side Connector Part Information PE096707 Conn 49 F Micro-64 GT 280 (BK) Sealed Pin Wire Color Circuit No. Function 1 BN 418 TCC PWM Solenoid Valve Control 2 L-GN 1222 1-2 Shift Solenoid Valve Control 3 RD/BK 1230 ISS High Signal 4-5 - - Not Used 6 TN 2501 High Speed GMLAN Serial Data Bus - (CAN) 7 TN/WH 2500 High Speed GMLAN Serial Data Bus + (CAN) 8 - - Not Used 9 WH 1804 TCC Release Switch Signal 10 - - Not Used 11 D-GN 500 Ignition 0 Voltage 12-13 - - Not Used 14 L-BU 1296 Axle Actuator Control 15 - - Not Used 16 PU 401 VSS Low Signal 17 L-BU/WH 1229 PC Solenoid Valve Low Control 18-19 - - Not Used 20 YE/BK 1223 2-3 Shift Solenoid Valve Control 21-22 - - Not Used 23 GY 773 Transmission Range Switch Signal C 24-25 - - Not Used 26 D-BU/WH 1231 ISS Low Signal 27 YE 2470 Class 2 Serial Data 28 - - Not Used 29 BK/WH 771 Transmission Range Switch Signal A 30 BK 2762 TFT Sensor Low Reference 31 PK 439 Ignition 1 Voltage 32 OG 4340 Battery Positive Voltage 33-34 - - Not Used 35 YE/PK 1227 TFT Sensor Signal 36 - - Not Used 37 TN 2501 High Speed GMLAN Serial Data Bus - (CAN) 38 TN/WH 2500 High Speed GMLAN Serial Data Bus + (CAN) 39 WH 776 Transmission Range Switch Signal P 40 RD/BK 1228 PC Solenoid Valve High Control 41 YE 400 VSS High Signal 42 WH 17 Stop Lamp Switch Signal 43-45 - - Not Used 46 YE 772 Transmission Range Switch Signal B 47-48 - - Not Used 49 BK/WH 451 Ground

Transmission Shift Interlock/TCC Brake Switch Connector, Wiring Harness Side Connector Part Information 12033706 4-Way F Metri-Pack 280 Series (BU) Pin Wire Color Circuit No. Function A OG/BK 1786 Park/Neutral Signal 1 B D-GN/WH 1135 Brake Switch Shift Interlock Input C PK 1239 TCC Brake Switch Ignition 1 Voltage D PU 420 TCC Brake Switch Signal

Vehicle Speed Sensor Connector, Wiring Harness Side Connector Part Information 15336004 2-Way F Metri-Pack GT 150 P2S Series (BK) Pin Wire Color Circuit No. Function A PU 401 VSS Low Signal B YE 400 VSS High Signal

Repair Procedure

1. Use solvent to clean the leak area.
2. Use compressed air to dry the area.
3. Follow the manufacturer's recommendations to mix a sufficient amount of GM P/N 1052533, or equivalent, epoxy cement.
4. Use a clean and dry soldering acid brush to apply the epoxy cement while the transaxle case is hot.
5. Allow the epoxy cement to cure for three hours.
6. Start the engine.
7. Repeat the fluid leak diagnosis procedures.

Removal Procedure

1. Remove the throttle body air inlet duct. Refer to «Air Cleaner Intake Duct Replacement»(/buick/rendezvous/i-2001-2007/remont/testing-diagnostics/#engine-controls-34l-introduction-service-replacement) in Engine Controls-3.4L.
2. Remove the air cleaner assembly. Refer to «Air Cleaner Assembly Replacement»(/buick/rendezvous/i-2001-2007/remont/testing-diagnostics/#engine-controls-34l-introduction-service-replacement) in Engine Controls-3.4L.
3. Use a flat-bladed tool in order to remove the retaining clip from the automatic transaxle range selector cable.
4. Raise the vehicle. Refer to «Lifting and Jacking the Vehicle»(/buick/rendezvous/i-2001-2007/remont/hoistjack/#general-information__lifting-and-jacking-the-vehicle) in General Information.
5. Use a large flat-bladed tool in order to remove the automatic transaxle range selector cable from the cable lever.
6. Use pliers in order to depress the cable retainers.
7. Remove the automatic transaxle range selector cable from the automatic transaxle range selector cable bracket.
8. Lower the vehicle.
9. Remove the knee bolster. Refer to «Knee Bolster Replacement»(/buick/rendezvous/i-2001-2007/remont/gauges-instrument-panels/#instrument-panel-system-displays-gauges-and-console) in Instrument Panel, Gages and Console.
10. If the vehicle is equipped with a console shift, perform the following steps: Remove the console trim plate. Refer to «Trim Plate Replacement - Front Floor Console (Aztek)»(/buick/rendezvous/i-2001-2007/remont/gauges-instrument-panels/#instrument-panel-system-displays-gauges-and-console) or «Trim Plate Replacement - Front Floor Console (Rendezvous)»(/buick/rendezvous/i-2001-2007/remont/gauges-instrument-panels/#instrument-panel-system-displays-gauges-and-console) in Instrument Panel, Gages and Console. Remove the transaxle shift cable from the floor shift control.
11. If the vehicle is equipped with a column shift, perform the following steps: Remove the retaining clip from the automatic transaxle range selector cable. Use a flat-bladed tool in order to remove the automatic transaxle range selector cable from the column control lever. Remove the automatic transaxle range selector cable from the steering column bracket.
12. Remove the automatic transaxle range selector cable through the cowl.

Installation Procedure

1. Properly route the automatic transaxle range selector cable through the engine compartment.
2. Install the automatic transaxle range selector cable through the cowl.
3. If the vehicle is equipped with a column shift, perform the following steps: Install the automatic transaxle range selector cable to the steering column bracket. Install the retaining clip to the automatic transaxle range selector cable. Install the automatic transaxle range selector cable to the column control lever.
4. If the vehicle is equipped with a console shift, perform the following steps: Install the transaxle shift cable to the floor shift control. Install the console trim plate. Refer to «Trim Plate Replacement - Front Floor Console (Aztek)»(/buick/rendezvous/i-2001-2007/remont/gauges-instrument-panels/#instrument-panel-system-displays-gauges-and-console) or «Trim Plate Replacement - Front Floor Console (Rendezvous)»(/buick/rendezvous/i-2001-2007/remont/gauges-instrument-panels/#instrument-panel-system-displays-gauges-and-console) in Instrument Panel, Gages and Console
5. Install the knee bolster. Refer to «Knee Bolster Replacement»(/buick/rendezvous/i-2001-2007/remont/gauges-instrument-panels/#instrument-panel-system-displays-gauges-and-console) in Instrument Panel, Gages and Console.
6. Install the A/T range selector cable to the A/T range selector cable bracket.
7. Raise the vehicle.
8. Install the A/T range selector cable to the A/T range selector lever.
9. Lower the vehicle.
10. Install the retaining clip to the automatic transaxle range selector cable.
11. Adjust the automatic transaxle range selector cable. Refer to «Automatic Transmission Range Selector Cable Adjustment»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-e-introduction-service-replacement__automatic-transmission-range-selector-cable-adjustment) .
12. Install the throttle body air inlet duct. Refer to «Air Cleaner Intake Duct Replacement»(/buick/rendezvous/i-2001-2007/remont/testing-diagnostics/#engine-controls-34l-introduction-service-replacement) in Engine Controls-3.4L.
13. Install the air cleaner assembly. Refer to «Air Cleaner Assembly Replacement»(/buick/rendezvous/i-2001-2007/remont/testing-diagnostics/#engine-controls-34l-introduction-service-replacement) in Engine Controls-3.4L.

Automatic Transmission Range Selector Cable Adjustment

Note. Adjust the automatic transaxle range selector cable while the transaxle and while the gear selector are in the Neutral position only. Failure to do so may cause mis-adjustment.

1. Set the parking brake.
2. Block the wheels.
3. Use an appropriate tool to pry on the automatic transaxle range selector cable terminal at the automatic transaxle range selector lever pin to remove the automatic transaxle range selector cable terminal from the transaxle manual shaft lever pin. DO NOT pry and DO NOT pull up on any other part of the automatic transaxle range selector cable or damage may occur.
4. Fully lift the adjuster lock button. Ensure the adjuster is free to move.
5. Rotate the automatic transaxle range selector lever fully counterclockwise to the Park gear, then rotate the lever clockwise 2 clicks into the Neutral gear to place the automatic transaxle range selector lever in the Neutral gear.
6. Perform the following steps to place the inside car gear shifter in the Neutral position: Rotate the shift lever to the Low 1 position, fully down. Push forward on the lever while slowly pushing up. The gear shift lever moves up while clicking over the gear over travel stops. Release the gear shift lever once the gear shift lever stops solidly. The gear shift lever is in the Neutral gear.
7. Grasp the automatic transaxle range selector cable terminal in the underhood.
8. Pull the automatic transaxle range selector cable terminal toward the pin on the automatic transaxle range selector lever. The automatic transaxle range selector cable adjuster spring should compress as the terminal is moved toward the pin.
9. Carefully push down the pin until the pin snaps to attach the pin to the automatic transaxle range selector lever. Do NOT move the automatic transaxle range selector lever out of position. DO NOT pull the terminal beyond the pin then push back or the shifter may move out of the Neutral gear.
10. Press the adjuster lock button down flush with the adjuster body.
11. Shift to Park.
12. Release the parking brake while applying the service brake.
13. Start the engine.
14. Ensure all the indicated gear positions match the vehicle response.

1. Remove the throttle body air inlet duct. Refer to «Air Cleaner Assembly Replacement»(/buick/rendezvous/i-2001-2007/remont/testing-diagnostics/#engine-controls-34l-introduction-service-replacement) in Engine Controls-3.4L.
2. Use a flat-bladed tool in order to remove the automatic transaxle range selector cable from the cable lever and the bracket. Refer to «Automatic Transmission Range Selector Cable Replacement»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-e-introduction-service-replacement) .
3. Remove the automatic transaxle range selector cable bracket bolts.
4. Remove the automatic transaxle range selector cable bracket.

1. Install the automatic transaxle range selector cable bracket.
2. Install the automatic transaxle range selector cable bracket bolts. Tighten: Tighten the automatic transaxle range selector cable bracket bolts to 25 N.m (18 lb ft).
3. Install the automatic transaxle range selector cable to the cable lever and the bracket. Refer to «Automatic Transmission Range Selector Cable Replacement»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-e-introduction-service-replacement) .
4. Adjust the automatic transaxle range selector cable. Refer to «Automatic Transmission Range Selector Cable Adjustment»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-e-introduction-service-replacement__automatic-transmission-range-selector-cable-adjustment) .
5. Install the throttle body air inlet duct. Refer to «Air Cleaner Assembly Replacement»(/buick/rendezvous/i-2001-2007/remont/testing-diagnostics/#engine-controls-34l-introduction-service-replacement) in Engine Controls-3.4L.

1. Remove the throttle body air inlet duct. Refer to «Air Cleaner Assembly Replacement»(/buick/rendezvous/i-2001-2007/remont/testing-diagnostics/#engine-controls-34l-introduction-service-replacement) in Engine Controls-3.4L.
2. Remove the automatic transaxle range selector lever cable from the automatic transaxle range selector lever.
3. Remove the automatic transaxle range selector lever retaining nut.
4. Remove the automatic transaxle range selector lever from the automatic transaxle.

1. Install the automatic transaxle range selector lever to the automatic transaxle.
2. Install the automatic transaxle range selector lever retaining nut. Tighten: Tighten the automatic transaxle range selector lever retaining nut to 20 N.m (15 lb ft).
3. Install the automatic transaxle range selector lever cable to the automatic transaxle range selector lever.
4. Adjust the automatic transaxle range selector lever cable if necessary. Refer to «Automatic Transmission Range Selector Cable Adjustment»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-e-introduction-service-replacement__automatic-transmission-range-selector-cable-adjustment) .
5. Install the throttle body air inlet duct. Refer to «Air Cleaner Assembly Replacement»(/buick/rendezvous/i-2001-2007/remont/testing-diagnostics/#engine-controls-34l-introduction-service-replacement) in Engine Controls-3.4L.

1. Apply the park brake and block the wheels in order to prevent the vehicle from moving.
2. Turn the ignition ON.
3. Press the brake pedal and shift the transaxle into low gear (1).
4. Turn the ignition OFF.
5. Use a small flat-bladed tool in order to remove the shift control handle retainer.
6. Remove the shift control handle.
7. Remove the center console trim plate. Refer to «Trim Plate Replacement - Front Floor Console (Aztek)»(/buick/rendezvous/i-2001-2007/remont/gauges-instrument-panels/#instrument-panel-system-displays-gauges-and-console) or «Trim Plate Replacement - Front Floor Console (Rendezvous)»(/buick/rendezvous/i-2001-2007/remont/gauges-instrument-panels/#instrument-panel-system-displays-gauges-and-console) in Instrument Panel, Gages and Console.
8. Remove the shift indicator fasteners.
9. Disconnect the shift indicator lamp from the shift indicator.
10. Remove the shift indicator.

1. Carefully install the shift indicator.
2. Ensure that the alignment pin and alignment tab are properly engaged.
3. Ensure that the shift lever is centered in the shift indicator.
4. Install the shift indicator fasteners. Tighten: Tighten the shift indicator fasteners in the order shown to 2 N.m (18 lb in).
5. Move the shift control through the entire range. If the shift lever contacts either side of the shift indicator, loosen the shift indicator fasteners and repeat the installation procedure.
6. Connect the shift indicator lamp to the shift indicator and ensure that the shift indicator lamp is functional.
7. Install the center console trim plate. Refer to «Trim Plate Replacement - Front Floor Console (Aztek)»(/buick/rendezvous/i-2001-2007/remont/gauges-instrument-panels/#instrument-panel-system-displays-gauges-and-console) or «Trim Plate Replacement - Front Floor Console (Rendezvous)»(/buick/rendezvous/i-2001-2007/remont/gauges-instrument-panels/#instrument-panel-system-displays-gauges-and-console) in Instrument Panel, Gages and Console.
8. Install the shift control handle.
9. Install the shift control handle retainer.
10. Shift the transaxle into Park.
11. Disengage the park brake and remove the wheel blocks.

1. Remove the console trim plate. Refer to «Trim Plate Replacement - Front Floor Console (Aztek)»(/buick/rendezvous/i-2001-2007/remont/gauges-instrument-panels/#instrument-panel-system-displays-gauges-and-console) or «Trim Plate Replacement - Front Floor Console (Rendezvous)»(/buick/rendezvous/i-2001-2007/remont/gauges-instrument-panels/#instrument-panel-system-displays-gauges-and-console) in Instrument Panel, Gages and Console.
2. Use a flat-bladed tool in order to remove the shift cable end from the shift control lever.
3. Remove the shift control cable from the shift control.
4. Remove the shift control wire harness from the shift control.
5. Remove the shift control fasteners.
6. Remove the shift control.

1. Install the shift control.
2. Install the shift control nuts. Tighten: Tighten the nuts to 10 N.m (89 lb in).
3. Install the shift cable to the shift control.
4. Install the shift control wire harness to the shift control.
5. Adjust the shift control cable as necessary. Refer to «Automatic Transmission Range Selector Cable Adjustment»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-e-introduction-service-replacement__automatic-transmission-range-selector-cable-adjustment) .
6. Install the console trim plate. Refer to «Trim Plate Replacement - Front Floor Console (Aztek)»(/buick/rendezvous/i-2001-2007/remont/gauges-instrument-panels/#instrument-panel-system-displays-gauges-and-console) or «Trim Plate Replacement - Front Floor Console (Rendezvous)»(/buick/rendezvous/i-2001-2007/remont/gauges-instrument-panels/#instrument-panel-system-displays-gauges-and-console) in Instrument Panel, Gages and Console.

1. Remove the oil level indicator from the filler tube.
2. Remove the air cleaner assembly Refer to «Air Cleaner Assembly Replacement»(/buick/rendezvous/i-2001-2007/remont/testing-diagnostics/#engine-controls-34l-introduction-service-replacement) in Engine Controls - 3.4L.
3. Remove the fluid filler tube nut from the EGR valve.
4. Remove the fluid filler tube bolt from the transaxle.
5. Remove the fluid filler tube.

1. Install the fluid filler tube seal in the transaxle.
2. Install the fluid filler tube.
3. Install the fluid filler tube bolt. Tighten: Tighten the bolt to 13 N.m (115 lb in).
4. Install the fluid filler tube nut. Tighten: Tighten the nut to 13 N.m (115 lb in).
5. Inspect and adjust the fluid level as needed. Refer to the following information: «Transmission Fluid Checking Procedure»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-ediagnostics-troubleshooting__transmission-fluid-checking-procedure) «Fluid and Lubricant Recommendations»(/buick/rendezvous/i-2001-2007/remont/lubrication-system/#maintenance-and-lubrication__fluid-and-lubricant-recommendations) «Capacities - Approximate Fluid»(/buick/rendezvous/i-2001-2007/remont/lubrication-system/#maintenance-and-lubrication__capacities-approximate-fluid)

1. Remove the air cleaner. Refer to «Air Cleaner Assembly Replacement»(/buick/rendezvous/i-2001-2007/remont/testing-diagnostics/#engine-controls-36l-ly7-introduction) in Engine Controls - 3.6L (LY7).
2. Remove the oil level indicator from the filler tube.
3. Remove the fluid filler tube nut.
4. Raise and support the vehicle. Refer to «Lifting and Jacking the Vehicle»(/buick/rendezvous/i-2001-2007/remont/hoistjack/#general-information__lifting-and-jacking-the-vehicle) in General Information.
5. Disconnect the intermediate steering shaft from the steering gear. Refer to «Intermediate Steering Shaft Replacement»(/buick/rendezvous/i-2001-2007/remont/ignition-switchsteering-lock/#steering-wheel-steering-column) in Steering Wheel and Column.
6. Support the rear of the frame and powertrain with a utility stand.
7. Remove only the two frame rear bolts.
8. Lower the powertrain enough to gain access to the transmission filler tube.
9. Remove the engine coolant (block) heater cord from the transmission filler tube. Refer to «Coolant Heater Cord Replacement (LA1)»(/buick/rendezvous/i-2001-2007/remont/cooling-fan/#engine-cooling-system) or «Coolant Heater Cord Replacement (LY7)»(/buick/rendezvous/i-2001-2007/remont/cooling-fan/#engine-cooling-system) in Engine Cooling.
10. Remove the transfer case vent tube from the transmission filler tube. Refer to «Vent Hose Assembly Replacement (LA1)»(/buick/rendezvous/i-2001-2007/remont/transfer-case/#transfer-case-steyr) or «Vent Hose Assembly Replacement (LY7)»(/buick/rendezvous/i-2001-2007/remont/transfer-case/#transfer-case-steyr) in Transfer Case - Steyr.
11. Remove the transmission filler tube bolt.
12. Remove the transmission fluid filler tube.

1. Install the fluid filler tube seal to the transaxle.
2. Install the transmission fluid filler tube.
3. Install the fluid filler tube bolt. Tighten: Tighten the filler tube bolt to 13 N.m (115 lb in).
4. Install the transfer case vent tube to the transmission filler tube. Refer to «Vent Hose Assembly Replacement (LA1)»(/buick/rendezvous/i-2001-2007/remont/transfer-case/#transfer-case-steyr) or «Vent Hose Assembly Replacement (LY7)»(/buick/rendezvous/i-2001-2007/remont/transfer-case/#transfer-case-steyr) in Transfer Case - Steyr.
5. Install the engine coolant (block) heater cord to the transmission filler tube. Refer to «Coolant Heater Cord Replacement (LA1)»(/buick/rendezvous/i-2001-2007/remont/cooling-fan/#engine-cooling-system) or «Coolant Heater Cord Replacement (LY7)»(/buick/rendezvous/i-2001-2007/remont/cooling-fan/#engine-cooling-system) in Engine Cooling.
6. Raise the powertrain until the frame insulators contact the chassis.
7. Install the frame bolts. Refer to «Frame Replacement - Front (W/AWD)»(/buick/rendezvous/i-2001-2007/remont/frames-subframes-crossmembers/#frame-and-underbody) or «Frame Replacement - Front (W/FWD)»(/buick/rendezvous/i-2001-2007/remont/frames-subframes-crossmembers/#frame-and-underbody) in Frame and Underbody.
8. Connect the intermediate steering shaft to the steering gear. Refer to «Intermediate Steering Shaft Replacement»(/buick/rendezvous/i-2001-2007/remont/ignition-switchsteering-lock/#steering-wheel-steering-column) in Steering Wheel and Column.
9. Lower the vehicle.
10. Install the fluid filler tube nut. Tighten: Tighten the filler tube nut to 13 N.m (115 lb in).
11. Install the oil level indicator from the filler tube.
12. Install the air cleaner. Refer to «Air Cleaner Assembly Replacement»(/buick/rendezvous/i-2001-2007/remont/testing-diagnostics/#engine-controls-36l-ly7-introduction) in Engine Controls - 3.6L (LY7).
13. Inspect and adjust the fluid level as needed. Refer to the following information: «Transmission Fluid Checking Procedure»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-ediagnostics-troubleshooting__transmission-fluid-checking-procedure) «Fluid and Lubricant Recommendations»(/buick/rendezvous/i-2001-2007/remont/lubrication-system/#maintenance-and-lubrication__fluid-and-lubricant-recommendations) «Capacities - Approximate Fluid»(/buick/rendezvous/i-2001-2007/remont/lubrication-system/#maintenance-and-lubrication__capacities-approximate-fluid)

1. Raise and support the vehicle. Refer to «Lifting and Jacking the Vehicle»(/buick/rendezvous/i-2001-2007/remont/hoistjack/#general-information__lifting-and-jacking-the-vehicle) in General Information.
2. Disconnect the electrical connector at the vehicle speed sensor.
3. Remove the retaining bolt (9) and the sensor (10).

1. Inspect the O-ring (11). If damaged, replace as necessary.
2. Install the vehicle speed sensor (10) and the retaining bolt (9). Tighten: Tighten the bolt to 12 N.m (106 lb in).
3. Connect the electrical connector to the sensor.
4. Lower the vehicle.

1. Remove the throttle body air inlet duct. Refer to «Air Cleaner Assembly Replacement»(/buick/rendezvous/i-2001-2007/remont/testing-diagnostics/#engine-controls-34l-introduction-service-replacement) in Engine Controls-3.4L.
2. Use a large flat-bladed tool in order to depress the reverse servo cover (40).
3. Use a small flat-bladed tool in order to remove the retaining ring (39).
4. Use a small flat-bladed tool in order to pull the O-ring seal (41) out through the slot in the case.
5. Use side cutting pliers in order to cut the servo cover O-ring seal (41).
6. Use a large flat-bladed tool in order to depress the reverse servo cover (40), grasp one end of the cut seal (41) and pull the seal (41) out of the servo cover (40).
7. Remove the reverse servo cover (40).
8. Remove the servo assembly (42-48).
9. Remove the servo spring (49).

1. Raise the driver (left) side of the vehicle until it is higher than the passenger (right) differential side. This ensures that the reverse band is in the proper location.
2. Install the servo spring (49).
3. Install the servo assembly (42-48).
4. Install the reverse servo cover (40) with the new O-ring seal (41).
5. Install the snap ring (39).
6. Install the throttle body air inlet duct. Refer to «Air Cleaner Assembly Replacement»(/buick/rendezvous/i-2001-2007/remont/testing-diagnostics/#engine-controls-34l-introduction-service-replacement) in Engine Controls-3.4L.

1. Remove the powertrain (engine, transmission and frame) from the vehicle. Refer to «Engine Replacement»(/buick/rendezvous/i-2001-2007/remont/mechanical/#engine-mechanical-repair-instructions-2-of-5-36l-ly7) in Engine Mechanical - 3.6L (LY7).
2. Remove the exhaust crossover pipe. Refer to «Exhaust Crossover Pipe Replacement (LA1)»(/buick/rendezvous/i-2001-2007/remont/exhaust/#engine-exhaust-system) or «Exhaust Crossover Pipe Replacement (LY7)»(/buick/rendezvous/i-2001-2007/remont/exhaust/#engine-exhaust-system) in Engine Exhaust.
3. Use a large flat-bladed tool in order to depress the reverse servo cover (40).
4. Use a small flat-bladed tool in order to remove the retaining ring (39).
5. Use a small flat-bladed tool in order to pull the O-ring seal (41) out through the slot in the case.
6. Use side cutting pliers in order to cut the servo cover O-ring seal (41).
7. Use a large flat-bladed tool in order to depress the reverse servo cover (40), grasp one end of the cut seal (41) and pull the seal (41) out of the servo cover (40).
8. Remove the reverse servo cover (40).
9. Remove the servo assembly (42-48).
10. Remove the servo spring (49).

1. Raise the outboard (left) side of the transmission until it is higher than the differential (right) side. This ensures that the reverse band is in the proper location.
2. Install the servo spring (49).
3. Install the servo assembly (42-48).
4. Install the reverse servo cover (40) with the new O-ring seal (41).
5. Install the snap ring (39).
6. Install the exhaust crossover pipe. Refer to «Exhaust Crossover Pipe Replacement (LA1)»(/buick/rendezvous/i-2001-2007/remont/exhaust/#engine-exhaust-system) or «Exhaust Crossover Pipe Replacement (LY7)»(/buick/rendezvous/i-2001-2007/remont/exhaust/#engine-exhaust-system) in Engine Exhaust.
7. Install the powertrain (engine, transmission and frame) to the vehicle. Refer to «Engine Replacement»(/buick/rendezvous/i-2001-2007/remont/mechanical/#engine-mechanical-repair-instructions-2-of-5-36l-ly7) in Engine Mechanical - 3.6L (LY7).

1. Install the engine support fixture. Refer to «Engine Support Fixture»(/buick/rendezvous/i-2001-2007/remont/mechanical/#engine-mechanical-34l-la1__engine-support-fixture) in Engine Mechanical.
2. Raise and support the vehicle. Refer to «Lifting and Jacking the Vehicle»(/buick/rendezvous/i-2001-2007/remont/hoistjack/#general-information__lifting-and-jacking-the-vehicle) in General Information.
3. Remove the stabilizer shaft. Refer to «Stabilizer Shaft Replacement»(/buick/rendezvous/i-2001-2007/remont/suspension-front/#front-suspension-system) in Front Suspension.
4. Remove the power steering gear heat shield. Refer to «Power Steering Gear Heat Shield Replacement»(/buick/rendezvous/i-2001-2007/remont/manual-power-steering/#power-steering-system) in Power Steering System.
5. Remove the power steering gear from the frame. Refer to «Power Steering Gear Replacement»(/buick/rendezvous/i-2001-2007/remont/manual-power-steering/#power-steering-system) in Power Steering System.
6. Use a strap in order to secure the power steering gear to the exhaust manifold.
7. Remove the power steering cooler line clamps from the frame. Refer to «Power Steering Cooler Pipe/Hose Replacement»(/buick/rendezvous/i-2001-2007/remont/manual-power-steering/#power-steering-system) in Power Steering System.
8. Use wire in order to secure the power steering cooler line to an engine component.
9. Remove the engine mount nuts. Refer to «Engine Mount Replacement»(/buick/rendezvous/i-2001-2007/remont/mechanical/#engine-mechanical-34l-la1) in Engine Mechanical.
10. Remove the transaxle mount nuts. Refer to «Automatic Transmission Mount Replacement»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-e-introduction-service-replacement) .
11. Use a utility stand in order to support the frame front.
12. Use a utility stand in order to support the frame rear.
13. Remove the frame bolts.
14. Use the utility stand in order to lower the frame rear for access to the forward servo cover.
15. Position a drain pan under the forward servo cover.
16. Remove the forward band servo cover bolts.
17. Remove the forward servo cover.
18. Remove the forward servo cover O-ring.
19. Remove the servo piston assembly.
20. Remove the servo spring.

1. Install the servo spring.
2. Install the servo piston assembly.
3. Install the forward servo cover O-ring.
4. Install the forward servo cover.
5. Install the forward band servo cover bolts. Tighten: Tighten the forward band servo cover bolts to 12 N.m (106 lb in).
6. Remove the drain pan from under the forward servo cover.
7. Use the utility stand in order to raise the frame rear.
8. Install the NEW frame bolts.
9. Install the powertrain mounts to the frame.
10. Install the transaxle mount nuts. Refer to «Automatic Transmission Mount Replacement»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-e-introduction-service-replacement) .
11. Install the engine mount nuts. Refer to «Engine Mount Replacement»(/buick/rendezvous/i-2001-2007/remont/mechanical/#engine-mechanical-34l-la1) in Engine Mechanical.
12. Install the power steering gear to the frame. Refer to «Power Steering Gear Replacement»(/buick/rendezvous/i-2001-2007/remont/manual-power-steering/#power-steering-system) in Power Steering System.
13. Install the power steering gear heat shield. Refer to «Power Steering Gear Heat Shield Replacement»(/buick/rendezvous/i-2001-2007/remont/manual-power-steering/#power-steering-system) in Power Steering System.
14. Install the stabilizer shaft. Refer to «Stabilizer Shaft Replacement»(/buick/rendezvous/i-2001-2007/remont/suspension-front/#front-suspension-system) in Front Suspension.
15. Lower the vehicle.
16. Remove the engine support fixture. Refer to «Engine Support Fixture»(/buick/rendezvous/i-2001-2007/remont/mechanical/#engine-mechanical-34l-la1__engine-support-fixture) in Engine Mechanical.

1. Remove the transfer case. Refer to «Transfer Case and/or Seal Replacement»(/buick/rendezvous/i-2001-2007/remont/transfer-case/#transfer-case-steyr__transfer-case-andor-seal-replacement) in Transfer Case - Steyr.
2. Remove the forward band servo cover bolts.
3. Remove the forward servo cover.
4. Remove the forward servo cover O-ring.
5. Remove the servo piston assembly.
6. Remove the servo spring.

1. Install the servo spring.
2. Install the servo piston assembly.
3. Install the forward servo cover O-ring.
4. Install the forward servo cover.
5. Install the forward band servo cover bolts. Tighten: Tighten the forward band servo cover bolts to 12 N.m (106 lb in).
6. Install the transfer case. Refer to «Transfer Case and/or Seal Replacement»(/buick/rendezvous/i-2001-2007/remont/transfer-case/#transfer-case-steyr__transfer-case-andor-seal-replacement) in Transfer Case - Steyr.

Front Wheel Drive Shaft Oil Seal Replacement - Left

Tools Required

1. J 23129 Universal Seal Remover
2. J 6125-1B Slide Hammer Adapter
3. J 6125-B Slide Hammer. See «Special Tools and Equipment»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-e-introduction-service-replacement) .
4. J 34115 Sprocket Bearing Installer. See «Special Tools and Equipment»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-e-introduction-service-replacement) .
5. J 37292-B Axle Seal Protector. See «Special Tools and Equipment»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-e-introduction-service-replacement) .

1. Raise and support the vehicle. Refer to «Lifting and Jacking the Vehicle»(/buick/rendezvous/i-2001-2007/remont/hoistjack/#general-information__lifting-and-jacking-the-vehicle) in General Information.
2. Remove the left front tire and wheel assembly. Refer to «Tire and Wheel Removal and Installation»(/buick/rendezvous/i-2001-2007/remont/wheel-tire-system/#tires-and-wheels) in Tires and Wheels.
3. Remove the left engine splash shield. Refer to «Splash Shield Replacement - Engine»(/buick/rendezvous/i-2001-2007/remont/exterior-body-panels/#body-front-end) in Body Front End.
4. Remove the left stabilizer shaft links from the left lower control arm. Refer to «Stabilizer Shaft Link Replacement»(/buick/rendezvous/i-2001-2007/remont/suspension-front/#front-suspension-system) in Front Suspension.
5. Remove the left tie rod end from the left steering knuckle. Refer to «Rack and Pinion Outer Tie Rod End Replacement»(/buick/rendezvous/i-2001-2007/remont/manual-power-steering/#power-steering-system) in Power Steering System.
6. Remove the left lower ball joint from the lower control arm. Refer to «Lower Ball Joint Replacement»(/buick/rendezvous/i-2001-2007/remont/suspension-front/#front-suspension-system) in Front Suspension.
7. Remove the left wheel drive shaft from the transaxle. Refer to «Wheel Drive Shaft Replacement - Front»(/buick/rendezvous/i-2001-2007/remont/axle-shafts/#wheel-drive-shafts__wheel-drive-shaft-replacement-front) in Wheel Drive Shafts.
8. Reposition and secure the left wheel drive shaft to the left steering knuckle and strut.
9. Using the J 6125-B with the J 6125-1B and the J 23129 remove the wheel drive shaft oil seal (1) from the transmission.

1. Use a light wipe of transaxle fluid to lubricate the seal lip.
2. Install the J 37292-B into the new seal (409). See «Special Tools and Equipment»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-e-introduction-service-replacement) .
3. Using the J 34115 install a new seal (409). See «Special Tools and Equipment»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-e-introduction-service-replacement) .
4. Install the wheel drive shaft to the transaxle. Refer to «Wheel Drive Shaft Replacement - Front»(/buick/rendezvous/i-2001-2007/remont/axle-shafts/#wheel-drive-shafts__wheel-drive-shaft-replacement-front) in Wheel Drive Shafts.
5. Remove the J 37292-B . See «Special Tools and Equipment»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-e-introduction-service-replacement) .
6. Install the left lower ball joint to the lower control arm. Refer to «Lower Ball Joint Replacement»(/buick/rendezvous/i-2001-2007/remont/suspension-front/#front-suspension-system) in Front Suspension.
7. Install the left tie rod end to the left steering knuckle. Refer to «Rack and Pinion Outer Tie Rod End Replacement»(/buick/rendezvous/i-2001-2007/remont/manual-power-steering/#power-steering-system) in Power Steering System.
8. Install the left stabilizer shaft links to the left lower control arm. Refer to «Stabilizer Shaft Link Replacement»(/buick/rendezvous/i-2001-2007/remont/suspension-front/#front-suspension-system) in Front Suspension.
9. Install the left engine splash shield. Refer to «Splash Shield Replacement - Engine»(/buick/rendezvous/i-2001-2007/remont/exterior-body-panels/#body-front-end) in Body Front End.
10. Install the left front tire and wheel assembly. Refer to «Tire and Wheel Removal and Installation»(/buick/rendezvous/i-2001-2007/remont/wheel-tire-system/#tires-and-wheels) in Tires and Wheels.
11. Lower the vehicle.
12. Refill the automatic transmission with automatic transmission fluid. Refer to «Transmission Fluid Checking Procedure»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-ediagnostics-troubleshooting__transmission-fluid-checking-procedure) .
13. Inspect for automatic transmission fluid leaks. Refer to «Fluid Leak Diagnosis»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-ediagnostics-troubleshooting) .

Front Wheel Drive Shaft Oil Seal Replacement - Right

Tools Required

1. J 23129 Universal Seal Remover
2. J 6125-1B Slide Hammer Adapter
3. J 6125-B Slide Hammer. See «Special Tools and Equipment»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-e-introduction-service-replacement) .
4. J 29130 Axle Shaft Seal Installer. See «Special Tools and Equipment»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-e-introduction-service-replacement) .
5. J 37292-B Axle Seal Protector. See «Special Tools and Equipment»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-e-introduction-service-replacement) .

1. Raise and support the vehicle. Refer to «Lifting and Jacking the Vehicle»(/buick/rendezvous/i-2001-2007/remont/hoistjack/#general-information__lifting-and-jacking-the-vehicle) in General Information.
2. Remove the right front tire and wheel assembly. Refer to «Tire and Wheel Removal and Installation»(/buick/rendezvous/i-2001-2007/remont/wheel-tire-system/#tires-and-wheels) in Tires and Wheels.
3. Remove the right engine splash shield. Refer to «Splash Shield Replacement - Engine»(/buick/rendezvous/i-2001-2007/remont/exterior-body-panels/#body-front-end) in Body Front End.
4. Remove the right stabilizer shaft links from the right lower control arm. Refer to «Stabilizer Shaft Link Replacement»(/buick/rendezvous/i-2001-2007/remont/suspension-front/#front-suspension-system) in Front Suspension.
5. Remove the right tie rod end from the right steering knuckle. Refer to «Rack and Pinion Outer Tie Rod End Replacement»(/buick/rendezvous/i-2001-2007/remont/manual-power-steering/#power-steering-system) in Power Steering System.
6. Remove the right lower ball joint from the lower control arm. Refer to «Lower Ball Joint Replacement»(/buick/rendezvous/i-2001-2007/remont/suspension-front/#front-suspension-system) .
7. Remove the right wheel drive shaft from the transaxle. Refer to «Wheel Drive Shaft Replacement - Front»(/buick/rendezvous/i-2001-2007/remont/axle-shafts/#wheel-drive-shafts__wheel-drive-shaft-replacement-front) in Wheel Drive Shafts.
8. Reposition and secure the right wheel drive shaft to the right steering knuckle and strut.
9. Using the J 6125-B with the. See «Special Tools and Equipment»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-e-introduction-service-replacement) . J 6125-1B and the J 23129 remove the wheel drive shaft oil seal (1) from the transmission.

1. Use a light wipe of transaxle fluid to lubricate the seal lip.
2. Install the J 37292-B into the new seal (4). See «Special Tools and Equipment»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-e-introduction-service-replacement) .
3. Using the J 29130 install the new seal (4). See «Special Tools and Equipment»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-e-introduction-service-replacement) .
4. Install the wheel drive shaft to the transaxle. Refer to «Wheel Drive Shaft Replacement - Front»(/buick/rendezvous/i-2001-2007/remont/axle-shafts/#wheel-drive-shafts__wheel-drive-shaft-replacement-front) in Wheel Drive Shafts.
5. Install the right lower ball joint to the steering knuckle. Refer to «Lower Ball Joint Replacement»(/buick/rendezvous/i-2001-2007/remont/suspension-front/#front-suspension-system) in Front Suspension.
6. Install the right tie rod end to the steering knuckle. Refer to «Rack and Pinion Outer Tie Rod End Replacement»(/buick/rendezvous/i-2001-2007/remont/manual-power-steering/#power-steering-system) in Power Steering System.
7. Install the right stabilizer shaft links to the right lower control arm. Refer to «Stabilizer Shaft Link Replacement»(/buick/rendezvous/i-2001-2007/remont/suspension-front/#front-suspension-system) in Front Suspension.
8. Install the right engine splash shield. Refer to «Splash Shield Replacement - Engine»(/buick/rendezvous/i-2001-2007/remont/exterior-body-panels/#body-front-end) in Body Front End.
9. Install the right front tire and wheel assembly. Refer to «Tire and Wheel Removal and Installation»(/buick/rendezvous/i-2001-2007/remont/wheel-tire-system/#tires-and-wheels) in Tires and Wheels.
10. Lower the vehicle.
11. Refill the automatic transmission with automatic transmission fluid. Refer to «Transmission Fluid Checking Procedure»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-ediagnostics-troubleshooting__transmission-fluid-checking-procedure) .
12. Inspect for automatic transmission fluid leaks. Refer to «Fluid Leak Diagnosis»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-ediagnostics-troubleshooting) .

1. Remove the air inlet duct. Refer to the appropriate service information. Refer to «Air Cleaner Assembly Replacement»(/buick/rendezvous/i-2001-2007/remont/testing-diagnostics/#engine-controls-34l-introduction-service-replacement) in Engine Controls-3.4L. Refer to «Air Cleaner Intake Duct Replacement»(/buick/rendezvous/i-2001-2007/remont/testing-diagnostics/#engine-controls-36l-ly7-introduction) in Engine Controls - 3.6L (LY7).
2. Remove the pressure test hole plug (38).

1. Apply sealant GM P/N 12345382 or equivalent to the pressure test hole plug.
2. Install the pressure test hole plug (38). Tighten: Tighten the pressure test hole plug (38) to 12 N.m (106 lb in).
3. Install the air inlet duct. Refer to the appropriate service information. Refer to «Air Cleaner Assembly Replacement»(/buick/rendezvous/i-2001-2007/remont/testing-diagnostics/#engine-controls-34l-introduction-service-replacement) in Engine Controls-3.4L. Refer to «Air Cleaner Intake Duct Replacement»(/buick/rendezvous/i-2001-2007/remont/testing-diagnostics/#engine-controls-36l-ly7-introduction) in Engine Controls - 3.6L (LY7).

1. Remove the air inlet duct. Refer to the appropriate service information. Refer to «Air Cleaner Assembly Replacement»(/buick/rendezvous/i-2001-2007/remont/testing-diagnostics/#engine-controls-34l-introduction-service-replacement) in Engine Controls - 3.4L. Refer to «Air Cleaner Intake Duct Replacement»(/buick/rendezvous/i-2001-2007/remont/testing-diagnostics/#engine-controls-36l-ly7-introduction) in Engine Controls - 3.6L (LY7).
2. Use a hammer and a chisel in order to raise the transaxle vent seat off of the transaxle (37).
3. Use a flat-bladed tool in order to pry the transaxle vent out of the transaxle (37).

1. Use a small hammer and a flat-bladed tool and tap down on the transaxle vent seat in order to install the transaxle vent (37).
2. Install the air inlet duct. Refer to the appropriate service information. Refer to «Air Cleaner Assembly Replacement»(/buick/rendezvous/i-2001-2007/remont/testing-diagnostics/#engine-controls-34l-introduction-service-replacement) in Engine Controls - 3.4L. Refer to «Air Cleaner Intake Duct Replacement»(/buick/rendezvous/i-2001-2007/remont/testing-diagnostics/#engine-controls-36l-ly7-introduction) in Engine Controls - 3.6L (LY7).

Note. Do NOT use any type of grease to retain parts during the assembly of this unit. Using greases other than the recommended assembly lube changes the transaxle fluid characteristics. Using greases other than the recommended assembly lube causes undesirable shift conditions and/or filter clogging. Use TRANSJEL™ J 36850 or equivalent during the assembly of this unit.

1. Raise and support the vehicle. Refer to «Lifting and Jacking the Vehicle»(/buick/rendezvous/i-2001-2007/remont/hoistjack/#general-information__lifting-and-jacking-the-vehicle) in General Information.
2. Place a drain pan under the transaxle bottom oil pan.
3. Remove the oil pan bolts (23) from the front.
4. Remove the oil pan bolts from the sides.
5. Loosen the rear oil pan bolts approximately four turns.
6. Use a rubber mallet to lightly tap the oil pan or use a screwdriver to pry the oil pan loose.
7. Allow the fluid to drain.
8. Remove the remaining oil pan bolts (23).
9. Remove the oil pan (24).
10. Remove the oil pan gasket (25).
11. Inspect the oil pan and the filter screen for the following foreign material: Inspect for metal particles. Inspect for clutch facing material. Inspect for rubber particles. Inspect for engine coolant.
12. Determine the source of the contamination if foreign material is evident.
13. Correct the source of the contamination.
14. Inspect the oil pan flange (1) for distortion.
15. Replace the oil pan (1) if bent or distorted. Do not attempt to straighten.
16. Inspect the washers on the bolts when service requires the removal of the bottom oil pan.
17. Install a new bolt and washer assembly if the washer is inverted.
18. Inspect the oil pan (24) for the following conditions: A damaged sealing surface A dented or cracked bottom surface
19. Inspect the oil pan gasket (25) for the following conditions: A bent or damaged seal core A damaged rubber seal surface A damaged gasket
20. Inspect the oil pan magnet (26) for the following conditions: Damage Misalignment
21. Clean the oil pan, the gasket and the magnet in order to remove any sediment.
22. Use solvent to clean the case.
23. Air dry the case.
24. Use solvent to clean the oil pan gasket surfaces.
25. Air dry the oil pan gasket surfaces.
26. Ensure all traces of the old gasket material are removed.

1. Install the oil pan gasket (25).
2. Install the oil pan (24).
3. Install the oil pan bolts (23). Tighten: Tighten the oil pan bolts (23) to 14 N.m (10 lb ft).
4. Lower the vehicle.
5. Fill the transaxle with the proper quantity of DEXRON® III.
6. Place the gear selector in the Park position.
7. Start the engine.
8. Run the engine at a slow idle. Do NOT race the engine.
9. Adjust the fluid level. Refer to «Transmission Fluid Checking Procedure»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-ediagnostics-troubleshooting__transmission-fluid-checking-procedure) , «Capacities - Approximate Fluid»(/buick/rendezvous/i-2001-2007/remont/lubrication-system/#maintenance-and-lubrication__capacities-approximate-fluid) and «Fluid and Lubricant Recommendations»(/buick/rendezvous/i-2001-2007/remont/lubrication-system/#maintenance-and-lubrication__fluid-and-lubricant-recommendations) in Maintenance and Lubrication.
10. Inspect for proper completion of the repairs.
11. Inspect the fluid for leaks.

1. Remove the oil pan and the gasket. Refer to «Oil Pan Replacement»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-e-introduction-service-replacement) .
2. Remove the filter (100).
3. Remove the lip ring seal pressed into the case only if replacement is necessary.
4. Inspect the screen for the following foreign material: Metal particles Clutch facing material Rubber particles Engine coolant
5. Determine the source of the contamination if foreign material is evident. Repair as necessary.
6. Clean the screen and allow the screen to dry completely.

1. If removed, install a new seal (101).
2. Install the filter (100).
3. Install the gasket and the oil pan. Refer to «Oil Pan Replacement»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-e-introduction-service-replacement) .

1. Raise and support the vehicle. Refer to «Lifting and Jacking the Vehicle»(/buick/rendezvous/i-2001-2007/remont/hoistjack/#general-information__lifting-and-jacking-the-vehicle) in General Information.
2. Remove the oil pan. Refer to «Oil Pan Replacement»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-e-introduction-service-replacement) .
3. Remove the filter. Refer to «Oil Filter and Seal Replacement»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-e-introduction-service-replacement) .
4. Remove the accumulator cover bolts (131).
5. Remove the manual 2-1 band servo cover bolts (103).
6. Use a large flat-bladed tool in order to gently pry the lube oil pipe retainer (129) from the case.
7. Remove the lube oil pipe (130) from the front differential carrier internal gear lube hole.
8. Remove the accumulator (132).
9. Remove the manual 2-1 band servo cover (104).
10. Remove the manual 2-1 band servo (106-116).
11. Remove the manual 2-1 band servo cover gasket (105).
12. Disassemble, inspect and service the accumulator and manual 2-1 band servo.

1. Install the manual 2-1 band servo cover gasket (105) into the case. Lubricate the manual 2-1 band servo cover gasket with automatic transmission fluid.
2. Install the manual 2-1 band servo (106-116).
3. Install the manual 2-1 band servo cover (104).
4. Install the manual 2-1 band servo cover bolts (103). Tighten: Tighten the manual 2-1 band servo cover bolts (130) to 25 N.m (18 lb ft).
5. Install the accumulator (132).
6. Install the lube oil pipe (130) into the case at the lube hole for the front differential carrier internal gear.
7. Use a flat-bladed tool in order to lock the lube oil pipe retainer (129) into the case.
8. Install the accumulator cover bolts (131). Tighten: Tighten the accumulator cover bolts (131) to 12 N.m (106 lb in).
9. If removed, install a new filter seal.
10. Install the filter. Refer to «Oil Filter and Seal Replacement»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-e-introduction-service-replacement) .
11. Install the oil pan. Refer to «Oil Pan Replacement»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-e-introduction-service-replacement) .
12. Lower the vehicle.

Tools Required

J 34094-A Thermo Element Height Gage. See Special Tools and Equipment .

1. Remove the oil pan. Refer to «Oil Pan Replacement»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-e-introduction-service-replacement) .
2. Remove the thermo element pins and washers (120 and 123).
3. Remove the thermo element (121) and the thermo element plate (122).

1. Use the J 34094-A to set the middle thermo pin (123). See «Special Tools and Equipment»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-e-introduction-service-replacement) .
2. Install the new thermo element plate (122).
3. Install the pin and washer (120).
4. Use the J 34094-A to set the height of the pin and washer (120) furthest from the accumulator. See «Special Tools and Equipment»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-e-introduction-service-replacement) .
5. Use the J 34094-A to set the height of the second pin and washer (120). See «Special Tools and Equipment»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-e-introduction-service-replacement) .
6. Carefully install the thermo element (121) between the two pin and washers (120). The V in the thermo element (121) must contact the thermo element plate (122).
7. Install the oil pan. Refer to «Oil Pan Replacement»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-e-introduction-service-replacement) .

1. Remove the case side cover. Refer to «Case Side Cover Replacement»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-e-introduction-service-replacement) .
2. Use a small flat-bladed tool in order to remove the wiring harness from the solenoid valve(s) (315A, 315B, 322, 334 and/or 440), TFP manual valve position switch (395) and/or the temperature sensor (391).
3. Remove the wiring harness (224).

1. Connect the wiring harness (224).
2. Install the wiring harness to the solenoid valve(s) (315A, 315B, 322, 334 and/or 440), TFP manual valve position switch (395) and/or the temperature sensor (391).
3. Install the case side cover. Refer to «Case Side Cover Replacement»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-e-introduction-service-replacement) .

1. Remove the air inlet duct. Refer to «Air Cleaner Assembly Replacement»(/buick/rendezvous/i-2001-2007/remont/testing-diagnostics/#engine-controls-34l-introduction-service-replacement) in Engine Controls - 3.4L.
2. Remove the engine mount struts. Refer to and in Engine Mechanical.
3. Remove the shift cable bracket from the transmission.
4. Raise and support the vehicle. Refer to «Lifting and Jacking the Vehicle»(/buick/rendezvous/i-2001-2007/remont/hoistjack/#general-information__lifting-and-jacking-the-vehicle) in General Information.
5. Remove the left front tire and wheel. Refer to «Tire and Wheel Removal and Installation»(/buick/rendezvous/i-2001-2007/remont/wheel-tire-system/#tires-and-wheels) in Tires and Wheels.
6. Remove the left engine splash shield. Refer to «Splash Shield Replacement - Engine»(/buick/rendezvous/i-2001-2007/remont/exterior-body-panels/#body-front-end) in Body Front End.
7. Remove the left tie rod end from the steering knuckle. Refer to «Rack and Pinion Outer Tie Rod End Replacement»(/buick/rendezvous/i-2001-2007/remont/manual-power-steering/#power-steering-system) in Power Steering System.
8. Remove the left wheel speed sensor harness connector (2) and the harness (1) from the lower control arm.
9. Remove the left lower ball joint from the left steering knuckle. Refer to «Lower Ball Joint Replacement»(/buick/rendezvous/i-2001-2007/remont/suspension-front/#front-suspension-system) in Front Suspension.
10. Remove the left stabilizer. Refer to «Fastener Tightening Specifications»(/buick/rendezvous/i-2001-2007/remont/suspension-front/#front-suspension-system__fastener-tightening-specifications) in Suspension.
11. Reposition and secure the drive axle toward the rear of the vehicle.
12. Remove the trans mount nuts at the frame.
13. Remove the intermediate shaft (1) from the steering gear (2). Refer to «Intermediate Steering Shaft Replacement»(/buick/rendezvous/i-2001-2007/remont/ignition-switchsteering-lock/#steering-wheel-steering-column) in Steering Wheel and Column - Tilt.
14. Support the left side of the frame with a utility stand.
15. Remove the left side frame bolts.
16. Use the utility stand in order to lower the left side of the powertrain enough to gain access the case side cover bolts.
17. Support the transmission with a transmission jack.
18. Use the utility stand in order to lower the left side of the frame enough to access the case side cover lower bolts.
19. Position the drain pan under the transaxle.
20. Disconnect the transaxle wiring harness electrical connectors.
21. Remove the case side cover bolts (56-58).
22. Remove the case side cover pan (53). If not replacing the side cover, steps 24, 25, 26, and 27 are not required.
23. Remove the case side cover gasket (54).
24. Remove the case side cover inner gasket (59).
25. Inspect the case side cover (53) for the following conditions: Damaged or porous gasket sealing surfaces Damaged or porous casting surfaces Damaged or stripped bolt holes
26. Inspect the case side cover gasket (54) and case side cover inner gasket (59) for damage. The gaskets are reusable if they are NOT damaged.
27. Clean the case side cover gasket surfaces.

1. If replacing with new side cover, install the case side cover inner gasket (59).
2. Install the case side cover gasket (54).
3. Install the case side cover pan (53).
4. Install the case side cover bolts (56-58). Tighten: Tighten the case side cover bolts (56-58) to 25 N.m (18 lb ft).
5. Install the transaxle mount bracket. Refer to «Automatic Transmission Mount Bracket Replacement»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-e-introduction-service-replacement) .
6. Connect the transaxle wiring harness connectors.
7. Partially raise the frame enough to engage the intermediate shaft to the steering gear.
8. Install the intermediate shaft (1) to the steering gear (2). Refer to «Intermediate Steering Shaft Replacement»(/buick/rendezvous/i-2001-2007/remont/ignition-switchsteering-lock/#steering-wheel-steering-column) in Steering Wheel and Column - Tilt.
9. Use the utility stand in order to raise the frame and powertrain until the frame insulators contact the chassis.
10. Remove the transmission jack.
11. Install the left drive axle to the transaxle. Refer to «Transmission Replacement (LA1)»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-e-introduction-service-replacement) or «Transmission Replacement (LY7)»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-e-introduction-service-replacement) .
12. Remove the drain pan from under the transaxle.
13. Install the left side frame bolts. Refer to «Frame Replacement - Front (W/AWD)»(/buick/rendezvous/i-2001-2007/remont/frames-subframes-crossmembers/#frame-and-underbody) or «Frame Replacement - Front (W/FWD)»(/buick/rendezvous/i-2001-2007/remont/frames-subframes-crossmembers/#frame-and-underbody) in Frame and Underbody.
14. Remove the utility stand support from the left side of the frame.
15. Install the left lower ball joint to the steering knuckle. Refer to «Lower Ball Joint Replacement»(/buick/rendezvous/i-2001-2007/remont/suspension-front/#front-suspension-system) .
16. Install the left stabilizer link. Refer to «Stabilizer Shaft Link Replacement»(/buick/rendezvous/i-2001-2007/remont/suspension-front/#front-suspension-system) .
17. Install the trans mount nuts at the frame. Tighten: Tighten the front frame bolts to 155 N.m (114 lb ft). Tighten the rear frame bolts to 240 N.m (177 lb ft).
18. Install the wheel speed sensor harness connector (2) and harness (1) to the lower control arm.
19. Install the left tie rod end to the steering knuckle. Refer to «Rack and Pinion Outer Tie Rod End Replacement»(/buick/rendezvous/i-2001-2007/remont/manual-power-steering/#power-steering-system) in Front Suspension.
20. Install the left engine splash shield. Refer to «Splash Shield Replacement - Engine»(/buick/rendezvous/i-2001-2007/remont/exterior-body-panels/#body-front-end) in Body Front End.
21. Install the left front tire and wheel. Refer to «Tire and Wheel Removal and Installation»(/buick/rendezvous/i-2001-2007/remont/wheel-tire-system/#tires-and-wheels) in Wheels and Tires.
22. Lower the vehicle.
23. Install the engine mount struts. Refer to and in Engine Mechanical.
24. Install the air inlet duct. Refer to «Air Cleaner Assembly Replacement»(/buick/rendezvous/i-2001-2007/remont/testing-diagnostics/#engine-controls-34l-introduction-service-replacement) in Engine Controls - 3.4L.
25. Install the shift cable bracket.
26. Adjust the fluid level. Refer to the following procedures: «Transmission Fluid Checking Procedure»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-ediagnostics-troubleshooting__transmission-fluid-checking-procedure) in Automatic Transaxle - 4T65-E. «Fluid and Lubricant Recommendations»(/buick/rendezvous/i-2001-2007/remont/lubrication-system/#maintenance-and-lubrication__fluid-and-lubricant-recommendations) in Maintenance and Lubrication «Capacities - Approximate Fluid»(/buick/rendezvous/i-2001-2007/remont/lubrication-system/#maintenance-and-lubrication__capacities-approximate-fluid) in Maintenance and Lubrication
27. Inspect for fluid leaks.

1. Turn the ignition OFF.
2. Remove the air cleaner upper cover. Refer to «Air Cleaner Assembly Replacement»(/buick/rendezvous/i-2001-2007/remont/testing-diagnostics/#engine-controls-36l-ly7-introduction) in Engine Controls - 3.6L (LY7).
3. Remove the transmission control module (TCM) from the air cleaner.
4. Disconnect the transmission control module electrical connectors from the TCM.

1. Connect the transmission control module electrical connectors to the TCM.
2. Install the TCM to the air cleaner.
3. Install the air cleaner upper cover. Refer to «Air Cleaner Assembly Replacement»(/buick/rendezvous/i-2001-2007/remont/testing-diagnostics/#engine-controls-36l-ly7-introduction) in Engine Controls - 3.6L (LY7).
4. Program the TCM. Refer to «Transmission Control Module Programming Procedure»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-e-introduction-service-replacement)

TCM Programming Procedures

1. The transmission control module (TCM) must be programmed with the proper software/calibrations. Ensure that the following conditions exist in order to prepare for TCM programming: The battery is fully charged. The ignition switch is in the RUN position. The Techline equipment cable connection at the data link connector (DLC) is secure.
2. Program the TCM using the latest software matching the vehicle. Refer to up-to-date Techline equipment user instructions.
3. If the TCM fails to program, proceed as follows: Ensure that the TCM connection is OK. Inspect the Techline equipment for the latest software version. Attempt to program the TCM. If the TCM still cannot be programmed properly, replace the TCM.

1. Remove the case side cover. Refer to «Case Side Cover Replacement»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-e-introduction-service-replacement) .
2. Use a small flat-bladed tool in order to remove the wiring harness from the solenoid valve(s) (315A, 315B, 322, 334 and/or 440), TFP manual valve position switch (395) and/or the temperature sensor (391).
3. Remove the wiring harness (224).

1. Connect the wiring harness (224).
2. Install the wiring harness to the solenoid valve(s) (315A, 315B, 322, 334 and/or 440), TFP manual valve position switch (395) and/or the temperature sensor (391).
3. Install the case side cover. Refer to «Case Side Cover Replacement»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-e-introduction-service-replacement) .
4. Fill the transaxle to the proper level. Refer to «Fluid Capacity Specifications»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-e-introduction-service-replacement__fluid-capacity-specifications) .
5. Inspect the transaxle fluid level. Refer to «Transmission Fluid Checking Procedure»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-ediagnostics-troubleshooting__transmission-fluid-checking-procedure) .
6. Inspect for fluid leaks.

1. Remove the case side cover. Refer to «Case Side Cover Replacement»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-e-introduction-service-replacement) .
2. Disconnect the transaxle wiring harness.
3. Remove the torque converter clutch PWM solenoid (334).

1. Install the torque converter clutch PWM solenoid (334).
2. Connect the transaxle wiring harness.
3. Install the case side cover. Refer to «Case Side Cover Replacement»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-e-introduction-service-replacement) .

1. Remove the case side cover. Refer to «Case Side Cover Replacement»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-e-introduction-service-replacement) .
2. Disconnect the transaxle wiring harness.
3. Remove the 1-2 shift solenoid (315A).

1. Install the 1-2 shift solenoid (315A).
2. Connect the transaxle wiring harness.
3. Install the case side cover. Refer to «Case Side Cover Replacement»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-e-introduction-service-replacement) .

1. Remove the case side cover. Refer to «Case Side Cover Replacement»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-e-introduction-service-replacement) .
2. Disconnect the transaxle wiring harness.
3. Remove the 2-3 shift solenoid (315B).

1. Install the 2-3 shift solenoid (315B).
2. Connect the transaxle wiring harness.
3. Install the case side cover. Refer to «Case Side Cover Replacement»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-e-introduction-service-replacement) .

1. Remove the case side cover. Refer to «Case Side Cover Replacement»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-e-introduction-service-replacement) .
2. Disconnect the transaxle wiring harness.
3. Remove the input speed sensor clip (441) from the case cover.
4. Remove the input speed sensor (440) from the case cover.
5. Inspect the input speed sensor (440) for the following conditions: Damaged or missing magnet Damaged housing Bent or missing electrical terminals Damaged speed sensor clip (441)

1. Install the input speed sensor (440) into the case cover.
2. Install the input speed sensor clip (441) into the case cover.
3. Connect the transaxle wiring harness.
4. Install the case side cover. Refer to «Case Side Cover Replacement»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-e-introduction-service-replacement) .

1. Remove the case side cover. Refer to «Case Side Cover Replacement»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-e-introduction-service-replacement)
2. Disconnect the transaxle wiring harness.
3. Remove the pressure control solenoid (322).

1. Install the pressure control solenoid (322).
2. Connect the transaxle wiring harness.
3. Install the case side cover. Refer to «Case Side Cover Replacement»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-e-introduction-service-replacement) .

1. Remove the case side cover. Refer to «Case Side Cover Replacement»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-e-introduction-service-replacement) .
2. Disconnect the transaxle wiring harness.
3. Remove the control valve body bolts (375, 379 and 381) that mount the fluid pressure manual valve position switch to the control valve body (300).
4. Carefully remove the fluid pressure manual valve position switch. Handle the switch carefully, the fluid pressure manual valve position switch is very delicate.
5. Inspect the fluid pressure manual valve position switch (395) for the following conditions: Damaged electrical connector terminals Damaged seals Damaged switch membranes Debris on the switch membranes

1. Carefully install the fluid pressure manual valve position switch. Handle the switch carefully, the fluid pressure manual valve position switch is very delicate.
2. Install the control valve body bolts (375, 379 and 381) that mount the fluid pressure manual valve position switch to the control valve body (300). Tighten: Tighten the control valve body bolt (375) to 12 N.m (106 lb in). Tighten the control valve body bolt (379) to 16 N.m (12 lb ft). Tighten the control valve body bolt (381) to 8 N.m (70 lb in).
3. Connect the transaxle wiring harness.
4. Install the case side cover. Refer to «Case Side Cover Replacement»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-e-introduction-service-replacement) .

1. Remove the case side cover. Refer to «Case Side Cover Replacement»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-e-introduction-service-replacement) .
2. Remove the oil pump bolts (205-207).
3. Remove the oil pump (200) form the valve body (300).
4. Inspect the oil pump.

1. Install the oil pump (200) to the valve body (300).
2. Install the oil pump bolts (205-207). Tighten: Tighten the M6 X 1.0 X 20 bolt to 8 N.m (70 lb in). Tighten the M6 X 1.0 X 85 bolt to 12 N.m (106 lb in). Tighten the M6 X 1.0 X 95 bolt to 12 N.m (106 lb in).
3. Install the case side cover. Refer to «Case Side Cover Replacement»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-e-introduction-service-replacement) .

Tool Required

J 36850 Transmission Assembly Lubricant

1. Remove the case side cover. Refer to «Case Side Cover Replacement»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-e-introduction-service-replacement) .
2. Remove the oil pump. Refer to «Oil Pump Replacement»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-e-introduction-service-replacement) .
3. Remove the valve body bolts (374-381, 384).
4. Remove the valve body (300) while keeping the spacer plate (370) with the transaxle.
5. Remove the ball check valves (372, 373) from the valve body.
6. Remove the spacer plate (370) and gasket.
7. Remove the ball check valves (372) from the case cover.
8. Inspect each check valve seat in the spacer plate (370) for excessive peening. Place a ball check valve (372) on each seat and use a flashlight in order to look for visible light between the valve and the seat.
9. Inspect all components removed from the transaxle. Refer to the Transmission/Transaxle/Transfer Case Unit Repair Manual.

1. Install the ball check valves (372) into the case cover. Use the J 36850 to retain the ball check valves in their proper locations.
2. Install the gasket and the spacer plate (370).
3. Install the ball check valves (372, 373) into the valve body. Use the J 36850 to retain the ball check valves in their proper locations.
4. Install the gasket (371) and the valve body (300).
5. Install the valve body bolts (374,381, 384). Tighten: Tighten the M6 X 1.0 X 20 bolt to 8 N.m (70 lb in). Tighten the M6 X 1.0 X 30 bolt to 12 N.m (106 lb ft). Tighten the M6 X 1.0 X 45 bolt to 12 N.m (106 lb in). Tighten the M6 X 1.0 X 55 bolt to 12 N.m (106 lb in). Tighten the M6 X 1.0 X 60 bolt to 12 N.m (106 lb in). Tighten the M6 X 1.0 X 65 bolt to 12 N.m (106 lb in). Tighten the M6 X 1.0 X 85 bolt to 12 N.m (106 lb in). Tighten the M6 X 1.0 X 95 bolt to 16 N.m (12 lb ft). Tighten the M8 X 1.25 X 90 bolt to 25 N.m (18 lb ft).
6. Install the oil pump. Refer to «Oil Pump Replacement»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-e-introduction-service-replacement) .
7. Install the case side cover. Refer to «Case Side Cover Replacement»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-e-introduction-service-replacement) .

1. Remove the case side cover. Refer to «Case Side Cover Replacement»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-e-introduction-service-replacement) .
2. Remove the oil reservoir weir (27).

1. Install the oil reservoir weir (27).
2. Install the case side cover. Refer to «Case Side Cover Replacement»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-e-introduction-service-replacement) .

1. Raise and support the vehicle. Refer to «Lifting and Jacking the Vehicle»(/buick/rendezvous/i-2001-2007/remont/hoistjack/#general-information__lifting-and-jacking-the-vehicle) in General Information.
2. Disconnect the right drive axle from the transaxle. Refer to «Wheel Drive Shaft Replacement - Front»(/buick/rendezvous/i-2001-2007/remont/axle-shafts/#wheel-drive-shafts__wheel-drive-shaft-replacement-front) in Wheel Drive Shafts.
3. Remove the transaxle brace. Refer to «Automatic Transmission Brace Replacement (LA1)»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-e-introduction-service-replacement) or «Automatic Transmission Brace Replacement (LY7)»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-e-introduction-service-replacement) .
4. Remove the vehicle speed sensor. Refer to «Input Speed Sensor Replacement»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-e-introduction-service-replacement) .
5. Remove the case extension housing bolts (5).
6. Remove the case extension housing (6) with the axle seal and the O-ring (8).
7. Inspect the case extension housing (6) for the following conditions: A damaged or porous sealing surface for the case extension seal A damaged or porous sealing surface for the vehicle speed sensor A damaged or porous sealing surface for the right drive axle oil seal A damaged or porous sealing surface for the case extension housing A damaged or worn differential carrier bushing or output shaft bearing Damaged bolt holes Inspect the drive axle seal and replace if necessary

1. If removed, install the drive axle seal.
2. Install the case extension housing (6) with the axle seal and with the O-ring (8).
3. Install the case extension housing bolts (5). Tighten: Tighten the bolts (5) to 36 N.m (27 lb ft).
4. Install the vehicle speed sensor. Refer to «Input Speed Sensor Replacement»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-e-introduction-service-replacement) .
5. Install the transaxle brace. Refer to «Automatic Transmission Brace Replacement (LA1)»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-e-introduction-service-replacement) or «Automatic Transmission Brace Replacement (LY7)»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-e-introduction-service-replacement) .
6. Connect the right drive axle to the transaxle. Refer to «Wheel Drive Shaft Replacement - Front»(/buick/rendezvous/i-2001-2007/remont/axle-shafts/#wheel-drive-shafts__wheel-drive-shaft-replacement-front) in Wheel Drive Shafts.
7. Lower the vehicle.
8. Adjust the fluid level. Refer to the following information. «Transmission Fluid Checking Procedure»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-ediagnostics-troubleshooting__transmission-fluid-checking-procedure) . «Fluid and Lubricant Recommendations»(/buick/rendezvous/i-2001-2007/remont/lubrication-system/#maintenance-and-lubrication__fluid-and-lubricant-recommendations) in Maintenance and Lubrication «Capacities - Approximate Fluid»(/buick/rendezvous/i-2001-2007/remont/lubrication-system/#maintenance-and-lubrication__capacities-approximate-fluid) in Maintenance and Lubrication
9. Inspect for completion of the repairs.
10. Inspect for fluid leaks.

Final Drive Replacement

Tools Required

1. J 42562 Axle Removal Wedge. See «Special Tools and Equipment»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-e-introduction-service-replacement) .
2. J 36850 Transjel Lubricant

1. Remove the case extension housing. Refer to «Case Extension Housing Replacement»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-e-introduction-service-replacement) .
2. Rotate the differential carrier until the end of the output shaft can be seen and the differential pinion shaft (701) is in a horizontal position.
3. Place the J 42562 between the end of the output shaft and the differential pinion shaft. See «Special Tools and Equipment»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-e-introduction-service-replacement) .
4. Using a hammer, hit the end of the axle removal tool in order to compress the output shaft compression ring (512) and push the output shaft through the differential side gear.
5. Remove the differential carrier (700).
6. Using snap ring pliers remove the compression ring (512) from the output shaft.
7. Remove the sun gear thrust bearing (698) from the differential carrier sun gear. The bearing may be stuck to the differential carrier.
8. Remove the differential carrier sun gear (697).
9. Remove the park gear (696).
10. Remove the internal gear thrust bearing (695) from the differential carrier internal gear.
11. Remove the sun gear shaft (689).
12. Inspect the sun gear shaft (689) for damage.

1. Assemble the sun gear thrust bearing (698), the differential carrier sun gear (697), the park gear (696), the internal gear thrust bearing (695) and the sun gear shaft (689) into the differential carrier (700).
2. Install the differential carrier into the case.
3. Install the case extension housing. Refer to «Case Extension Housing Replacement»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-e-introduction-service-replacement) .

1. Disconnect the left and right drive axles from the transaxle. Refer to «Wheel Drive Shaft Replacement - Front»(/buick/rendezvous/i-2001-2007/remont/axle-shafts/#wheel-drive-shafts__wheel-drive-shaft-replacement-front) in Wheel Drive Shafts.
2. Remove the case extension housing. Refer to «Case Extension Housing Replacement»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-e-introduction-service-replacement) .
3. Remove the final drive differential. Refer to «Final Drive Replacement»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-e-introduction-service-replacement__final-drive-replacement) .
4. Use the snap ring pliers in order to remove the compression ring (512) from the output shaft.
5. Remove the output shaft through the left wheel opening.
6. Inspect the output shaft (510) and the bearing (511) for the following: A cracked or deformed bearing cage Damaged bushing journals Stripped splines A damaged retainer ring groove

1. Install the drive axle retaining ring (509) and the output shaft differential inboard snap ring (512) onto the output shaft (510).
2. Install the fourth clutch bearing (511) onto the output shaft (510).
3. Hold the final drive differential (700) in place and carefully install the output shaft (510) into the transmission through the left wheel opening and into the differential side gear.
4. Install the case extension housing. Refer to «Case Extension Housing Replacement»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-e-introduction-service-replacement) .
5. Connect the left and right drive axles to the transaxle. Refer to «Wheel Drive Shaft Replacement - Front»(/buick/rendezvous/i-2001-2007/remont/axle-shafts/#wheel-drive-shafts__wheel-drive-shaft-replacement-front) in Wheel Drive Shafts.

1. Disconnect the transaxle oil cooler (TOC) outlet hose from top side of the radiator. Refer to «Transmission Fluid Cooler Line Quick Connect Fitting»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-e-introduction-service-replacement) .
2. Raise and support the vehicle. Refer to «Lifting and Jacking the Vehicle»(/buick/rendezvous/i-2001-2007/remont/hoistjack/#general-information__lifting-and-jacking-the-vehicle) in General Information.
3. Remove the TOC hose retainer bolt.
4. Position a drain pan below the oil cooler hoses.
5. Disconnect the TOC outlet hose from the transaxle. Refer to «Transmission Fluid Cooler Line Quick Connect Fitting»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-e-introduction-service-replacement) .
6. Disconnect the TOC inlet hose from the transaxle. Refer to «Transmission Fluid Cooler Line Quick Connect Fitting»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-e-introduction-service-replacement) .
7. Disconnect the TOC inlet hose from the radiator. Refer to «Transmission Fluid Cooler Line Quick Connect Fitting»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-e-introduction-service-replacement) .
8. Disconnect the TOC hoses from the radiator support retainer.
9. Remove the TOC hoses from the vehicle.

Note. Allow sufficient clearance around the transaxle oil cooler pipes and around the hoses to prevent damage or wear which may cause fluid loss.

1. Install the TOC hoses to the vehicle.
2. Connect the TOC hoses to the radiator support retainer.
3. Connect the TOC inlet hose to the radiator. Refer to «Transmission Fluid Cooler Line Quick Connect Fitting»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-e-introduction-service-replacement) .
4. Connect the TOC inlet hose to the transaxle. Refer to «Transmission Fluid Cooler Line Quick Connect Fitting»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-e-introduction-service-replacement) .
5. Connect the TOC outlet hose to the transaxle. Refer to «Transmission Fluid Cooler Line Quick Connect Fitting»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-e-introduction-service-replacement) .
6. Install the TOC hose retainer and the bolt. Tighten: Tighten the bolt to 25 N.m (18 lb ft).
7. Lower the vehicle.
8. Connect the TOC outlet hose to the top side of the radiator. Refer to «Transmission Fluid Cooler Line Quick Connect Fitting»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-e-introduction-service-replacement) .
9. Adjust the fluid level. Refer to the following information. «Transmission Fluid Checking Procedure»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-ediagnostics-troubleshooting__transmission-fluid-checking-procedure) . «Fluid and Lubricant Recommendations»(/buick/rendezvous/i-2001-2007/remont/lubrication-system/#maintenance-and-lubrication__fluid-and-lubricant-recommendations) in Maintenance and Lubrication. «Capacities - Approximate Fluid»(/buick/rendezvous/i-2001-2007/remont/lubrication-system/#maintenance-and-lubrication__capacities-approximate-fluid) in Maintenance and Lubrication.

1. Pull the plastic cap back from the quick connect fitting and down along the cooler line about 5 cm (2 in).
2. Using a bent-tip screwdriver, pull on one of the open ends of the retaining ring in order to rotate the retaining ring around the quick connect fitting until the retaining ring is out of position and can be completely removed.
3. Remove the retaining ring from the quick connect fitting.
4. Discard the retaining ring.
5. Pull the cooler line straight out from the quick connect fitting.

1. Install a new retaining ring into the quick connect fitting using the following procedure
2. Hook one of the open ends of the retaining ring in one of the slots in the quick connect fitting.
3. Rotate the retaining ring around the fitting until the retaining ring is positioned with all three ears through the three slots on the fitting.
4. Do not install the new retaining ring onto the fitting by pushing the retaining ring.
5. Ensure that the three retaining ring ears are seen from inside the fitting and that the retaining ring moves freely in the fitting slots.
6. Install the cooler line into the quick connect fitting.
7. Insert the cooler line end into the quick connect fitting until a click is either heard or felt.
8. Do not use the plastic cap on the cooler line in order to install the cooler line into the fitting.
9. Pull back sharply on the cooler line in order to ensure that the cooler line is fastened into the quick connect fitting.
10. Position (snap) the plastic cap onto the fitting. Do not manually depress the retaining ring when installing the plastic cap onto the quick connect fitting.
11. Ensure that the plastic cap is fully seated against the fitting.
12. Ensure that no gap is present between the cap and the fitting.
13. Ensure that the yellow identification band on the tube is hidden within the quick connect fitting.
14. A hidden yellow identification band indicates proper joint seating.
15. Fill the transmission to the proper level with DEXRON® III transmission fluid. Refer to «Transmission Fluid Checking Procedure»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-ediagnostics-troubleshooting__transmission-fluid-checking-procedure) .

Note. Allow sufficient clearance around the transaxle oil cooler pipes and around the hoses to prevent damage or wear which may cause fluid loss.

1. Raise and support the vehicle. Refer to «Lifting and Jacking the Vehicle»(/buick/rendezvous/i-2001-2007/remont/hoistjack/#general-information__lifting-and-jacking-the-vehicle) in General Information.
2. Position the drain pan.
3. Remove the transaxle oil cooler hoses from the transaxle oil cooler fittings. Refer to «Transmission Fluid Cooler Line Quick Connect Fitting»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-e-introduction-service-replacement) .
4. Remove the transaxle oil cooler fittings (28, 29) from the transaxle.

1. Apply sealant GM P/N 12345382 or equivalent to transaxle oil cooler fittings.
2. Install the transaxle oil cooler fittings (28, 29) to the transaxle. Tighten: Tighten the fittings to 38 N.m (28 lb ft).
3. Install the transaxle oil cooler hoses to the transaxle oil cooler fittings. Refer to «Transmission Fluid Cooler Line Quick Connect Fitting»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-e-introduction-service-replacement) .
4. Lower the vehicle.
5. Adjust the fluid level. Refer to the following information. «Transmission Fluid Checking Procedure»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-ediagnostics-troubleshooting__transmission-fluid-checking-procedure) «Fluid and Lubricant Recommendations»(/buick/rendezvous/i-2001-2007/remont/lubrication-system/#maintenance-and-lubrication__fluid-and-lubricant-recommendations) in Maintenance and Lubrication. «Capacities - Approximate Fluid»(/buick/rendezvous/i-2001-2007/remont/lubrication-system/#maintenance-and-lubrication__capacities-approximate-fluid) in Maintenance and Lubrication
6. Inspect for proper completion of the repairs.
7. Inspect for fluid leaks.

Transmission Mount Inspection

Note. In order to avoid oil pan damage and possible engine failure, insert a block of wood that spans the width of the oil pan bottom between the oil pan and the jack support.

1. Use a jack or a utility stand to raise the transmission/transaxle in order to remove the weight from the transmission/transaxle mount and create slight tension in the mount.
2. Inspect the transmission/transaxle mount. Replace the transmission/transaxle mount if the transmission/transaxle mount exhibits any of the following conditions: The rubber surface is covered with cracks. The rubber is separated from the metal plate of the mount. The rubber is split through the center.
3. If there is movement between the metal plate of the transmission/transaxle mount and the transmission, tighten the transmission mount fasteners to the correct tightening specification.

For information on the engine mount, refer to in Engine Mechanical.

1. Remove the transaxle mount bracket. Refer to «Automatic Transmission Mount Bracket Replacement»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-e-introduction-service-replacement) .
2. Remove the transaxle mount lower nuts to the transaxle mount frame bracket.
3. Remove the transaxle mount from the transaxle mount frame bracket.

1. Install the transaxle mount to the transaxle mount frame bracket.
2. Install the transaxle mount lower nuts to the transaxle mount frame bracket. Tighten: Tighten the transaxle mount lower nuts to 47 N.m (35 lb ft).
3. Install the transaxle mount bracket to the transaxle. Refer to «Automatic Transmission Mount Bracket Replacement»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-e-introduction-service-replacement) .

1. Raise and support the vehicle. Refer to «Lifting and Jacking the Vehicle»(/buick/rendezvous/i-2001-2007/remont/hoistjack/#general-information__lifting-and-jacking-the-vehicle) in General Information.
2. Remove the right front tire and wheel. Refer to «Tire and Wheel Removal and Installation»(/buick/rendezvous/i-2001-2007/remont/wheel-tire-system/#tires-and-wheels) in Tires and Wheels.
3. Remove the right engine splash shield. Refer to «Splash Shield Replacement - Engine»(/buick/rendezvous/i-2001-2007/remont/exterior-body-panels/#body-front-end) in Body Front End.
4. Remove the transaxle brace bolts.
5. Remove the transaxle brace.

1. Position the transaxle brace to transaxle and engine.
2. Hand start the bolts to the engine.
3. Hand start the bolts to the transaxle.
4. Install the brace bolts to the engine. Tighten: Tighten the brace bolts to 43 N.m (32 lb ft).
5. Install the brace bolts to the transaxle. Tighten: Tighten the brace bolts to 43 N.m (32 lb ft).
6. Install the right engine splash shield. Refer to «Splash Shield Replacement - Engine»(/buick/rendezvous/i-2001-2007/remont/exterior-body-panels/#body-front-end) in Body Front End.
7. Install the right front tire and wheel. Refer to «Tire and Wheel Removal and Installation»(/buick/rendezvous/i-2001-2007/remont/wheel-tire-system/#tires-and-wheels) in Tires and Wheels.
8. Lower the vehicle.

1. Raise and support the vehicle. Refer to «Lifting and Jacking the Vehicle»(/buick/rendezvous/i-2001-2007/remont/hoistjack/#general-information__lifting-and-jacking-the-vehicle) in General Information.
2. Remove the right front tire and wheel. Refer to «Tire and Wheel Removal and Installation»(/buick/rendezvous/i-2001-2007/remont/wheel-tire-system/#tires-and-wheels) in Tires and Wheels.
3. Remove the right engine splash shield. Refer to «Splash Shield Replacement - Engine»(/buick/rendezvous/i-2001-2007/remont/exterior-body-panels/#body-front-end) in Body Front End.
4. Remove the transfer case brace. Refer to «Support Brace Replacement (LA1)»(/buick/rendezvous/i-2001-2007/remont/transfer-case/#transfer-case-steyr) or «Support Brace Replacement (LY7)»(/buick/rendezvous/i-2001-2007/remont/transfer-case/#transfer-case-steyr) in Transfer Case - Steyr.
5. Remove the transmission lower brace bolts.
6. Remove the transmission lower brace.
7. If you are servicing the transmission upper brace, it will be necessary to remove the powertrain (engine, transmission and frame). Then separate the transmission from the engine. Refer to «Transmission Replacement (LA1)»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-e-introduction-service-replacement) or «Transmission Replacement (LY7)»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-e-introduction-service-replacement) .
8. Remove the transmission upper brace bolts.
9. Remove the transmission upper brace.

1. Install the transmission upper brace.
2. Install the transmission upper brace bolts. Tighten: Tighten the transmission upper brace outboard bolts (2) to 23 N.m (17 lb ft). Tighten: Tighten the transmission upper brace inboard bolt (1) to 50 N.m (37 lb ft).
3. Install the transmission to the engine. Then install the powertrain (engine, transmission and frame) to the vehicle. Refer to «Transmission Replacement (LA1)»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-e-introduction-service-replacement) or «Transmission Replacement (LY7)»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-e-introduction-service-replacement) .
4. Install the transmission lower brace.
5. Install the transmission lower brace bolts. Tighten: Tighten the transmission lower brace bolts to 50 N.m (37 lb ft).
6. Install the transfer case brace. Refer to «Support Brace Replacement (LA1)»(/buick/rendezvous/i-2001-2007/remont/transfer-case/#transfer-case-steyr) or «Support Brace Replacement (LY7)»(/buick/rendezvous/i-2001-2007/remont/transfer-case/#transfer-case-steyr) in Transfer Case - Steyr.
7. Install the right engine splash shield. Refer to «Splash Shield Replacement - Engine»(/buick/rendezvous/i-2001-2007/remont/exterior-body-panels/#body-front-end) in Body Front End.
8. Install the right front tire and wheel. Refer to «Tire and Wheel Removal and Installation»(/buick/rendezvous/i-2001-2007/remont/wheel-tire-system/#tires-and-wheels) in Tires and Wheels.
9. Lower the vehicle.

1. Raise and support the vehicle. Refer to «Lifting and Jacking the Vehicle»(/buick/rendezvous/i-2001-2007/remont/hoistjack/#general-information__lifting-and-jacking-the-vehicle) in General Information.
2. Remove the left front tire and wheel. Refer to «Tire and Wheel Removal and Installation»(/buick/rendezvous/i-2001-2007/remont/wheel-tire-system/#tires-and-wheels) in Tires and Wheels.
3. Remove the left engine splash shield. Refer to «Splash Shield Replacement - Engine»(/buick/rendezvous/i-2001-2007/remont/exterior-body-panels/#body-front-end) in Body Front End.
4. Use a utility stand with a block of wood in order to support the transaxle.
5. Remove the transaxle mount upper nuts.
6. Remove the transaxle mount bracket bolts.
7. Remove the transaxle mount bracket.

1. Position the transaxle mount bracket.
2. Install the transaxle mount bracket bolts. Tighten: Start with the forward lower bolt and work clockwise to tighten the transaxle mount bracket bolts to 95 N.m (70 lb ft).
3. Remove the utility stand.
4. Install the transaxle mount upper nuts. Tighten: Tighten the transaxle mount upper nuts to 47 N.m (35 lb ft).
5. Install the left engine splash shield. Refer to «Splash Shield Replacement - Engine»(/buick/rendezvous/i-2001-2007/remont/exterior-body-panels/#body-front-end) in Body Front End.
6. Install the left front tire and wheel. Refer to «Tire and Wheel Removal and Installation»(/buick/rendezvous/i-2001-2007/remont/wheel-tire-system/#tires-and-wheels) in Tires and Wheels.
7. Lower the vehicle.

1. Raise and support the vehicle. Refer to «Lifting and Jacking the Vehicle»(/buick/rendezvous/i-2001-2007/remont/hoistjack/#general-information__lifting-and-jacking-the-vehicle) in General Information.
2. Remove the torque converter cover bolts.
3. Remove the torque converter cover.

1. Install the torque converter cover.
2. Install the torque converter cover bolts. Tighten: Tighten the bolts to 10 N.m (89 lb in).
3. Lower the vehicle.

1. Raise and support the vehicle. Refer to «Lifting and Jacking the Vehicle»(/buick/rendezvous/i-2001-2007/remont/hoistjack/#general-information__lifting-and-jacking-the-vehicle) in General Information.
2. Remove the torque converter cover bolts.
3. Remove the torque converter cover.

1. Install the torque converter cover.
2. Install the torque converter cover bolts. Tighten: Tighten the bolts to 8 N.m (71 lb in).
3. Lower the vehicle.

J 37096 Flywheel Holder. See Special Tools and Equipment .

1. Raise and support the vehicle. Refer to «Lifting and Jacking the Vehicle»(/buick/rendezvous/i-2001-2007/remont/hoistjack/#general-information__lifting-and-jacking-the-vehicle) in General Information.
2. Remove the torque converter cover. Refer to «Torque Converter Cover Replacement (LA1)»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-e-introduction-service-replacement) or «Torque Converter Cover Replacement (LY7)»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-e-introduction-service-replacement) .
3. Use the J 37096 in order to rotate the flywheel and access the torque converter bolts. See «Special Tools and Equipment»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-e-introduction-service-replacement) .
4. Use the J 37096 to hold the flywheel. See «Special Tools and Equipment»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-e-introduction-service-replacement) .
5. Remove the flywheel to torque converter bolts.

1. Install the flywheel to torque converter bolts.
2. Use the J 37623 to hold the flywheel. Tighten: Tighten the bolts to 63 N.m (47 lb ft).
3. Install the torque converter cover. Refer to «Torque Converter Cover Replacement (LA1)»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-e-introduction-service-replacement) or «Torque Converter Cover Replacement (LY7)»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-e-introduction-service-replacement) .
4. Lower the vehicle.

J 43442 Flywheel Holder

1. Raise and support the vehicle. Refer to «Lifting and Jacking the Vehicle»(/buick/rendezvous/i-2001-2007/remont/hoistjack/#general-information__lifting-and-jacking-the-vehicle) in General Information.
2. Remove the torque converter cover. Refer to «Torque Converter Cover Replacement (LA1)»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-e-introduction-service-replacement) or «Torque Converter Cover Replacement (LY7)»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-e-introduction-service-replacement) .
3. Remove the starter. Refer to «Starter Motor Replacement (LA1)»(/buick/rendezvous/i-2001-2007/remont/charging-system/#battery-charging-system-and-starting-system) or «Starter Motor Replacement (LY7)»(/buick/rendezvous/i-2001-2007/remont/charging-system/#battery-charging-system-and-starting-system) in Engine Electrical.
4. Use J 43442 to hold the flywheel.
5. Remove the torque converter bolts.

1. Install the torque converter bolts.
2. Use J 43442 to hold the flywheel. Tighten: Tighten the torque converter bolts to 60 N.m (44 lb ft).
3. Install the starter. Refer to «Starter Motor Replacement (LA1)»(/buick/rendezvous/i-2001-2007/remont/charging-system/#battery-charging-system-and-starting-system) or «Starter Motor Replacement (LY7)»(/buick/rendezvous/i-2001-2007/remont/charging-system/#battery-charging-system-and-starting-system) in Engine Electrical.
4. Install the torque converter cover. Refer to «Torque Converter Cover Replacement (LA1)»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-e-introduction-service-replacement) or «Torque Converter Cover Replacement (LY7)»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-e-introduction-service-replacement) .
5. Lower the vehicle.

J 35944-A Transmission Oil Cooler Flusher. See Special Tools and Equipment .

1. Remove the push pins from the coolant recovery bottle.
2. Position aside the coolant recovery bottle.
3. Remove the air cleaner. Refer to «Air Cleaner Assembly Replacement»(/buick/rendezvous/i-2001-2007/remont/testing-diagnostics/#engine-controls-34l-introduction-service-replacement) in Engine Controls-3.4L.
4. Remove the automatic transmission range selector cable from the automatic transmission range selector cable lever. Refer to «Automatic Transmission Range Selector Cable Lever Replacement»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-e-introduction-service-replacement) .
5. Remove the automatic transmission range selector cable bracket. Refer to «Automatic Transmission Range Selector Cable Bracket Replacement»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-e-introduction-service-replacement) .
6. Disconnect the wiring harness connectors from the transaxle.
7. Remove the wiring harness from the transaxle.
8. Remove the right side engine strut. Refer to in Engine Mechanical-3.4L.
9. Install the engine support fixture. Refer to «Engine Support Fixture»(/buick/rendezvous/i-2001-2007/remont/mechanical/#engine-mechanical-34l-la1__engine-support-fixture) in Engine Mechanical-3.4L.
10. Raise the vehicle. Refer to «Lifting and Jacking the Vehicle»(/buick/rendezvous/i-2001-2007/remont/hoistjack/#general-information__lifting-and-jacking-the-vehicle) in General Information.
11. Remove the top four bell housing bolts (2, 3, 4, 5).
12. If the vehicle is equipped with All-Wheel-Drive (AWD), perform the following steps: Remove the propeller shaft. Refer to «Propeller Shaft Replacement»(/buick/rendezvous/i-2001-2007/remont/driveshaft-universal-joints/#propeller-shaft) in Propeller Shaft. Remove the transfer case brace. Refer to «Support Brace Replacement (LA1)»(/buick/rendezvous/i-2001-2007/remont/transfer-case/#transfer-case-steyr) or «Support Brace Replacement (LY7)»(/buick/rendezvous/i-2001-2007/remont/transfer-case/#transfer-case-steyr) in Transfer Case-Steyr.
13. Remove the frame. Refer to «Frame Replacement - Front (W/AWD)»(/buick/rendezvous/i-2001-2007/remont/frames-subframes-crossmembers/#frame-and-underbody) or «Frame Replacement - Front (W/FWD)»(/buick/rendezvous/i-2001-2007/remont/frames-subframes-crossmembers/#frame-and-underbody) in Frame and Underbody.
14. Remove the filler tube. Refer to «Fluid Filler Tube Replacement (LA1)»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-e-introduction-service-replacement) or «Fluid Filler Tube Replacement (LY7)»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-e-introduction-service-replacement) .
15. Remove the torque converter cover. Refer to «Torque Converter Cover Replacement (LA1)»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-e-introduction-service-replacement) or «Torque Converter Cover Replacement (LY7)»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-e-introduction-service-replacement) .
16. Remove the torque converter bolts. Refer to «Flywheel to Torque Converter Bolt Replacement (LA1)»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-e-introduction-service-replacement) or «Flywheel to Torque Converter Bolt Replacement (LY7)»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-e-introduction-service-replacement) .
17. Disconnect the vehicle speed sensor electrical connector.
18. Remove the right and left drive axles from the transaxle. Refer to «Wheel Drive Shaft Replacement - Front»(/buick/rendezvous/i-2001-2007/remont/axle-shafts/#wheel-drive-shafts__wheel-drive-shaft-replacement-front) in Wheel Drive Shafts.
19. Disconnect the transmission cooler hoses from the transaxle. Refer to «Automatic Transmission Oil Cooler Hose Replacement»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-e-introduction-service-replacement) .
20. Position the transmission jack under the transaxle.
21. Remove the transaxle/transfer case brace. Refer to «Automatic Transmission Brace Replacement (LA1)»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-e-introduction-service-replacement) or «Automatic Transmission Brace Replacement (LY7)»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-e-introduction-service-replacement) .
22. Remove the lower transaxle bolts (6) and stud (1).
23. Remove the transaxle from the vehicle.
24. If the vehicle is equipped with AWD, remove the transfer case. Refer to Transfer Case Removal in Automatic Transaxle - 4T65-E Unit Repair.
25. Flush the transaxle oil cooler and the transaxle oil cooler hoses. Refer to «Automatic Transmission Oil Cooler Flushing and Flow Test (J35944-A)»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-ediagnostics-troubleshooting__automatic-transmission-oil-cooler-flushing-and) or «Automatic Transmission Oil Cooler Flushing and Flow Test (J45096)»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-ediagnostics-troubleshooting__automatic-transmission-oil-cooler-flushing-and) in Automatic Transmission - 4T65-E.

1. If the vehicle is equipped with AWD, install the transfer case. Refer to Transfer Case Installation in Automatic Transaxle - 4T65-E Unit Repair.
2. Position the flex plate alignment hole to the seven o'clock position.
3. Align the transaxle filler tube to the transmission and install the transaxle into the vehicle.
4. Install the lower transaxle bolt (6) and stud (1). Tighten: Tighten the lower transaxle to engine and engine to transaxle bolts to 75 N.m (55 lb ft).
5. Install the transaxle/transfer case brace. Refer to «Automatic Transmission Brace Replacement (LA1)»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-e-introduction-service-replacement) or «Automatic Transmission Brace Replacement (LY7)»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-e-introduction-service-replacement) .
6. Install the transmission cooler hoses. Refer to «Automatic Transmission Oil Cooler Hose Replacement»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-e-introduction-service-replacement) .
7. Install the right and left axle shafts into the transaxle. Refer to «Wheel Drive Shaft Replacement - Front»(/buick/rendezvous/i-2001-2007/remont/axle-shafts/#wheel-drive-shafts__wheel-drive-shaft-replacement-front) in Wheel Drive Shafts.
8. Connect the vehicle speed sensor electrical connector.
9. Install the torque converter bolts. Refer to «Flywheel to Torque Converter Bolt Replacement (LA1)»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-e-introduction-service-replacement) or «Flywheel to Torque Converter Bolt Replacement (LY7)»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-e-introduction-service-replacement) .
10. Install the torque converter cover. Refer to «Torque Converter Cover Replacement (LA1)»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-e-introduction-service-replacement) or «Torque Converter Cover Replacement (LY7)»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-e-introduction-service-replacement) .
11. Install the filler tube bracket bolt.
12. Install the frame. Refer to «Frame Replacement - Front (W/AWD)»(/buick/rendezvous/i-2001-2007/remont/frames-subframes-crossmembers/#frame-and-underbody) or «Frame Replacement - Front (W/FWD)»(/buick/rendezvous/i-2001-2007/remont/frames-subframes-crossmembers/#frame-and-underbody) in Frame and Underbody.
13. If the vehicle is equipped with AWD, perform the following steps: Install the propeller shaft. Refer to «Propeller Shaft Replacement»(/buick/rendezvous/i-2001-2007/remont/driveshaft-universal-joints/#propeller-shaft) in Propeller Shaft. Install the transfer case brace. Refer to «Support Brace Replacement (LA1)»(/buick/rendezvous/i-2001-2007/remont/transfer-case/#transfer-case-steyr) or «Support Brace Replacement (LY7)»(/buick/rendezvous/i-2001-2007/remont/transfer-case/#transfer-case-steyr) in Transfer Case-Steyr.
14. Install the front wheels. Refer to «Tire and Wheel Removal and Installation»(/buick/rendezvous/i-2001-2007/remont/wheel-tire-system/#tires-and-wheels) in Tires and Wheels.
15. Lower the vehicle.
16. Remove the engine support fixture. Refer to «Engine Support Fixture»(/buick/rendezvous/i-2001-2007/remont/mechanical/#engine-mechanical-34l-la1__engine-support-fixture) in Engine Mechanical-3.4L.
17. Install the right side engine strut. Refer to in Engine Mechanical-3.4L.
18. Install the upper transaxle bolts (3, 4, 5) and stud (2). Tighten: Tighten the upper transaxle bolts and stud to 75 N.m (55 lb ft).
19. Connect the wiring harness to the transaxle.
20. Install the transmission range selector cable bracket. Refer to «Automatic Transmission Range Selector Cable Bracket Replacement»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-e-introduction-service-replacement) .
21. Install the automatic transmission range selector cable to the automatic transmission range selector lever. Refer to «Automatic Transmission Range Selector Cable Lever Replacement»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-e-introduction-service-replacement) .
22. Install the air cleaner assembly. Refer to «Air Cleaner Assembly Replacement»(/buick/rendezvous/i-2001-2007/remont/testing-diagnostics/#engine-controls-34l-introduction-service-replacement) in Engine Controls-3.4L.
23. Install the coolant recovery bottle.
24. Inspect and adjust the transaxle fluid level as needed. Refer to the following information. «Transmission Fluid Checking Procedure»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-ediagnostics-troubleshooting__transmission-fluid-checking-procedure) «Fluid and Lubricant Recommendations»(/buick/rendezvous/i-2001-2007/remont/lubrication-system/#maintenance-and-lubrication__fluid-and-lubricant-recommendations) «Capacities - Approximate Fluid»(/buick/rendezvous/i-2001-2007/remont/lubrication-system/#maintenance-and-lubrication__capacities-approximate-fluid)

J 35944-A Transmission Oil Cooler Flusher. See Special Tools and Equipment .

1. Raise and support the vehicle. Refer to «Lifting and Jacking the Vehicle»(/buick/rendezvous/i-2001-2007/remont/hoistjack/#general-information__lifting-and-jacking-the-vehicle) in General Information.
2. Remove the transmission lower bell housing bolt located between the engine oil pan and the transmission oil pan.
3. Remove the powertrain (engine, transmission and frame) from the vehicle. Refer to «Engine Replacement»(/buick/rendezvous/i-2001-2007/remont/mechanical/#engine-mechanical-repair-instructions-2-of-5-36l-ly7) in Engine Mechanical - 3.6L (LY7).
4. Remove the filler tube. Refer to «Fluid Filler Tube Replacement (LA1)»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-e-introduction-service-replacement) or «Fluid Filler Tube Replacement (LY7)»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-e-introduction-service-replacement) .
5. Remove the transmission bell housing bolts (2).
6. If the vehicle is equipped with All-Wheel-Drive (AWD), remove the transfer case brace. Refer to «Support Brace Replacement (LA1)»(/buick/rendezvous/i-2001-2007/remont/transfer-case/#transfer-case-steyr) or «Support Brace Replacement (LY7)»(/buick/rendezvous/i-2001-2007/remont/transfer-case/#transfer-case-steyr) in Transfer Case-Steyr.
7. Remove the coolant inlet pipe. Refer to «Coolant Pipe Replacement - Inlet»(/buick/rendezvous/i-2001-2007/remont/cooling-fan/#engine-cooling-system) in Engine Cooling.
8. Remove the transmission mount with the transmission mount bracket. Refer to «Automatic Transmission Mount Bracket Replacement»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-e-introduction-service-replacement) .
9. Remove the starter motor. Refer to «Starter Motor Removal»(/buick/rendezvous/i-2001-2007/remont/mechanical/#engine-mechanical-repair-instructions-2-of-5-36l-ly7__starter-motor-removal) in Engine Mechanical - 3.6L (LY7).
10. Remove the torque converter bolts. Refer to «Flywheel to Torque Converter Bolt Replacement (LA1)»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-e-introduction-service-replacement) or «Flywheel to Torque Converter Bolt Replacement (LY7)»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-e-introduction-service-replacement) .
11. Remove the transmission lower brace. Refer to «Automatic Transmission Brace Replacement (LA1)»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-e-introduction-service-replacement) or «Automatic Transmission Brace Replacement (LY7)»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-e-introduction-service-replacement) .
12. Remove the transmission upper brace nut located behind the power steering pump and above the transfer case.
13. Remove the transmission bolt near the crank sensor and the engine coolant (block) heater.
14. Separate the transmission from the engine.
15. If the vehicle is equipped with AWD, remove the transfer case. Refer to Transfer Case Removal in Automatic Transaxle - 4T65-E Unit Repair.
16. Flush the transaxle oil cooler and the transaxle oil cooler hoses. Refer to «Automatic Transmission Oil Cooler Flushing and Flow Test (J35944-A)»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-ediagnostics-troubleshooting__automatic-transmission-oil-cooler-flushing-and) or «Automatic Transmission Oil Cooler Flushing and Flow Test (J45096)»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-ediagnostics-troubleshooting__automatic-transmission-oil-cooler-flushing-and) in Automatic Transmission - 4T65-E.

1. If the vehicle is equipped with AWD, install the transfer case. Refer to Transfer Case Installation in Automatic Transaxle- 4T65-E Unit Repair.
2. Use the dowel locator pins (1) in order to align and install the transmission to the engine.
3. Install the transmission bell housing bolts (2). Tighten: Tighten the transmission bell housing bolts to 50 N.m (37 lb ft).
4. Install the transmission bell housing bolt near the crank sensor and the engine coolant (block) heater. Tighten: Tighten the transmission bell housing bolt to 50 N.m (37 lb ft).
5. Install the transmission upper brace nut located behind the power steering pump and above the transfer case. Tighten: Tighten the transmission upper brace nut to 50 N.m (37 lb ft).
6. Install the transmission lower brace. Refer to «Automatic Transmission Brace Replacement (LA1)»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-e-introduction-service-replacement) or «Automatic Transmission Brace Replacement (LY7)»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-e-introduction-service-replacement) .
7. Install the torque converter bolts. Refer to «Flywheel to Torque Converter Bolt Replacement (LA1)»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-e-introduction-service-replacement) or «Flywheel to Torque Converter Bolt Replacement (LY7)»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-e-introduction-service-replacement) .
8. Install the starter motor. Refer to «Starter Motor Installation»(/buick/rendezvous/i-2001-2007/remont/mechanical/#engine-mechanical-repair-instructions-4-of-5-36l-ly7__starter-motor-installation) in Engine Mechanical - 3.6L (LY7).
9. Install the transmission mount with the transmission mount bracket. Refer to «Automatic Transmission Mount Bracket Replacement»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-e-introduction-service-replacement) .
10. Install the coolant inlet pipe. Refer to «Coolant Pipe Replacement - Inlet»(/buick/rendezvous/i-2001-2007/remont/cooling-fan/#engine-cooling-system) in Engine Cooling.
11. If the vehicle is equipped with All-Wheel-Drive (AWD), install the transfer case brace. Refer to «Support Brace Replacement (LA1)»(/buick/rendezvous/i-2001-2007/remont/transfer-case/#transfer-case-steyr) or «Support Brace Replacement (LY7)»(/buick/rendezvous/i-2001-2007/remont/transfer-case/#transfer-case-steyr) in Transfer Case-Steyr.
12. Install the filler tube. Refer to «Fluid Filler Tube Replacement (LA1)»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-e-introduction-service-replacement) or «Fluid Filler Tube Replacement (LY7)»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-e-introduction-service-replacement) .
13. Install the powertrain (engine, transmission and frame) to the vehicle. Refer to «Engine Replacement»(/buick/rendezvous/i-2001-2007/remont/mechanical/#engine-mechanical-repair-instructions-2-of-5-36l-ly7) in Engine Mechanical - 3.6L (LY7).
14. Install the transmission lower bell housing bolt located between the engine oil pan and the transmission oil pan. Tighten: Tighten the transmission bell housing bolt to 50 N.m (37 lb ft).
15. Inspect and adjust the transaxle fluid level as needed. Refer to the following information. «Transmission Fluid Checking Procedure»(/buick/rendezvous/i-2001-2007/remont/automatic-trans/#automatic-transaxle-4t65-ediagnostics-troubleshooting__transmission-fluid-checking-procedure) «Fluid and Lubricant Recommendations»(/buick/rendezvous/i-2001-2007/remont/lubrication-system/#maintenance-and-lubrication__fluid-and-lubricant-recommendations) «Capacities - Approximate Fluid»(/buick/rendezvous/i-2001-2007/remont/lubrication-system/#maintenance-and-lubrication__capacities-approximate-fluid)

How to Use This Section

This section provides the following information

1. General diagnosis information on transmissions
2. Procedures for diagnosing the Hydra-matic transmission

When you diagnose any condition of the Hydra-matic transmission, begin with A Diagnostic Starting Point. This procedure indicates the proper path of diagnosing the transmission by describing the basic checks. This procedure will then refer you to the locations of specific checks. After you have determined the cause of a condition, refer to Repair Instructions for repair procedures. If the faulty component is not serviceable without removing the transmission from the vehicle, refer to Unit Repair for repair information.

Basic Knowledge

Note. Do not, under any circumstances, attempt to diagnose a powertrain condition without basic knowledge of this powertrain. If you perform diagnostic procedures without this basic knowledge, you may incorrectly diagnose the condition or damage the powertrain components.

You must be familiar with some basic electronics in order to use this section of the service manual. You should also be able to use the following special tools

1. A digital multimeter (DMM)
2. A circuit tester
3. Jumper wires or leads
4. A line pressure gage set

Diagnosis

Note. If you probe a wire with a sharp instrument and do not properly seal the wire afterward, the wire corrodes and an open circuit results.

Diagnostic test probes are now available that allow you to probe individual wires without leaving the wire open to the environment. These probe devices are inexpensive and easy to install, and they permanently seal the wire from corrosion.

Scheme 74

Transmission General Description

The 4T65-E is a fully automatic front wheel drive electronically controlled transmission. The 4T65-E provides four forward ranges including overdrive. The PCM controls shift points by means of two shift solenoids. A vane-type oil pump supplies the oil pressure. The PCM regulates oil pressure by means of a pressure control solenoid valve.

All vehicles equipped with a 4T65-E transmission have an electronically controlled capacity clutch (ECCC) system. In the ECCC system, the pressure plate does not fully lock to the torque converter cover. It is instead, precisely controlled to maintain a small amount of slippage between the engine and the turbine, reducing driveline torsional disturbances.

You can operate the transmission in any one of the following seven modes

1. P - Park position prevents the vehicle from rolling either forward or backward. For safety reasons, use the parking brake in addition to the park position.
2. R - Reverse allows the vehicle to be operated in a rearward direction.
3. N - Neutral allows the engine to be started and operated while driving the vehicle. If necessary, you may select this position in order to restart the engine with the vehicle moving.
4. D - Overdrive is used for all normal driving conditions. Overdrive provides four gear ratios plus a converter clutch operation. Depress the accelerator in order to downshift for safe passing.
5. 3 - Drive position is used for city traffic and hilly terrain. Drive provides three gear ranges and drive range prevents the transmission from operating in fourth gear. Depress the accelerator in order to downshift.
6. 2 - Manual Second provides two gear ratios under most operating conditions. Manual Second provides acceleration and engine braking. Select this range at any vehicle speed, but the transmission will not downshift into Second gear until the vehicle speed drops below approximately 100 km/h (62 mph)
7. 1 - Manual Lo provides maximum engine braking. You may also select this range at any vehicle speed, but the transmission will not downshift into First gear until the vehicle speed drops below approximately 60 km/h (37 mph).

Transmission Component and System Description

The mechanical components of this unit are as follows

1. A torque converter with an electronically controlled capacity clutch (ECCC) This transmission is equipped with an electronically controlled capacity clutch (ECCC). The pressure plate does not fully lock to the torque converter cover. Instead, the pressure plate maintains a small amount of slippage, about 20 RPM, in SECOND, THIRD and FOURTH gears, depending on the vehicle application. ECCC was developed to reduce the possibility of noise, vibration or chuggle caused by TCC apply. Typical apply speeds are 49-52 km/h (30-32 mph) in THIRD gear and 65-73 km/h (40-45 mph) in FOURTH gear. Full lockup is available at highway speeds on some applications.
2. A drive link assembly
3. 4 multiple disk clutch assemblies: Input, Second, Third and Fourth
4. 3 friction bands: Forward band, 2/1 band and Reverse band
5. 2 planetary gear sets: Input and Reaction
6. 3 one-way clutches: a roller clutch (1-2 support) and 2 sprag clutches (Third and Input)
7. A final drive and differential assembly
8. A control valve assembly
9. A vane type oil pump

The electrical components of this unit are as follows

1. 2 shift solenoid valves
2. A torque converter clutch pulse width modulation (TCC PWM) solenoid valve
3. A pressure control (PC) solenoid valve
4. An automatic transmission fluid temperature (TFT) sensor
5. 2 speed sensors: input shaft and vehicle speed sensors
6. An automatic transmission fluid pressure (TFP) manual valve position switch
7. Either an internal mode switch (IMS) or an externally-mounted transmission range (TR) switch.
8. An automatic transmission (A/T) wiring harness assembly

For more information, refer to Electronic Component Description .

Transmission Adaptive Functions

The 4T65-E transmission uses a line pressure control system, that has the ability to adapt line pressure to compensate for normal wear of the following parts

1. The clutch fiber plates
2. The springs and seals
3. The apply bands

The PCM maintains information for the following transmission adaptive systems

Upshift Adapts (1-2, 2-3 and 3-4)

The PCM monitors the automatic transmission input speed sensor (ISS) and the vehicle speed sensor (VSS) in order to determine when an upshift has started and completed. The PCM measures the time for the upshift. If the upshift time is longer than a calibrated value, then the PCM will adjust the current to the pressure control (PC) solenoid valve to increase the line pressure for the next shift in the same torque range. If the upshift time is shorter than the calibrated value, then the PCM will decrease the line pressure for the next shift in the same torque range.

Steady State Adapts

The PCM monitors the ISS and the VSS after an upshift in order to determine the amount of clutch slippage. If excessive slippage is detected, then the PCM will adjust the current to the PC solenoid valve in order to increase the line pressure to maintain the proper gear ratio for the commanded gear.

The TAP information is divided into 13 units, called cells. The cells are numbered 4 through 16. Each cell represents a given torque range. TAP cell 4 is the lowest adaptable torque range and TAP cell 16 is the highest adaptable torque range. It is normal for TAP cell values to display zero or negative numbers. This indicates that the PCM has adjusted line pressure at or below the calibrated base pressure.

Clearing Transmission Adaptive Pressure (TAP)

Updating TAP information is a learning function of the PCM designed to maintain acceptable shift times. It is not recommended that TAP information be reset unless one of the following repairs has been made

1. Transmission overhaul or replacement
2. Repair or replacement of an apply or release component - clutch, band, piston, servo
3. Repair or replacement of a component or assembly which directly affects line pressure

Resetting the TAP values using a scan tool will erase all learned values in all cells. As a result, the PCM will need to relearn TAP values. Transmission performance may be affected as new TAPs are learned. The PCM must also relearn TAP values when the PCM or the transmission is replaced.

Scheme 75

The transmission control module (TCM) is mounted in the engine compartment and connects directly to the engine wiring harness. A single 49-way connector is used to make the connection between the vehicle wiring and the TCM. The TCM is an electronic control module that receives input or provides output in order to control the operation of the 4T65-E automatic transmission and Versatrak All Wheel Drive system, if equipped.

The TCM receives the following inputs from the engine control module (ECM)

1. Engine speed and torque values
2. Engine intake air temperature (IAT), accelerator pedal position (APP) information
3. Engine coolant temperature (ECT)
4. Kick-down request
5. Traction control status
6. Driver selected shift mode
7. Air-conditioning (A/C) status
8. Cruise control status

The ECM provides this data to the TCM through the controller area network (CAN). The CAN is a 2-wire communication connection between the 2 controllers.

Other TCM inputs are the following

1. Battery and ignition voltage
2. Brake switch status
3. Transmission internal mode switch (IMS) assembly
4. Transmission fluid temperature (TFT)
5. Transmission input shaft speed (ISS) sensor
6. Vehicle speed sensor (VSS)

The TCM provides the following outputs in order to control the automatic transmission

1. Shift solenoids to control transmission shifting
2. TCC PWM solenoid operation to control the apply and release of the torque converter clutch
3. Pressure control (PC) solenoid to regulate transmission line pressure

Other TCM outputs provided to the ECM are the following

1. MIL illumination request
2. Vehicle speed
3. Transmission input speed
4. Transmission fluid temperature
5. Commanded gear status
6. TCC status
7. Torque reduction requests
8. IMS status
9. Transmission service status

Scheme 76

The vehicle speed sensor (VSS) is a magnetic inductive pickup that relays vehicle speed information to the control module. The control module uses this information in order to control shift timing, line pressure, and TCC apply and release.

The VSS mounts in the case extension at the vehicle speed sensor reluctor wheel, which is pressed onto the final drive carrier assembly. An air gap of 0.27-1.57 mm (0.011-0.062 in) occurs between the sensor and the teeth on the vehicle speed sensor reluctor wheel as the final drive carrier assembly rotates.

The sensor consists of a permanent magnet surrounded by a coil of wire. As the vehicle speed sensor reluctor wheel on the final drive carrier assembly rotates, an AC signal is produced by the VSS. This AC signal consists of a voltage and frequency that changes based on vehicle speed. The control module uses the frequency portion of this signal to determine vehicle speed. Higher vehicle speeds induce a higher frequency and a higher voltage measurement at the sensor. The voltage portion of the signal is used in diagnostic procedures.

Sensor resistance should measure between 1,650-2,200 ohms at 20°C (68°F). Output voltage will vary with vehicle speed from a minimum of 0.5 volts AC at 100 RPM to 200 volts at 6,000 RPM.

Scheme 77

The automatic transmission input speed sensor (ISS) is a magnetic inductive pickup that relays turbine shaft speed information to the control module. The control module uses ISS information in order to control line pressure, transmission shift patterns and TCC apply and release. This information is also used in order to calculate the appropriate operating gear ratios and TCC slippage.

The ISS mounts in the case cover, next to the automatic transmission input shaft speed sensor reluctor wheel assembly. An air gap of 0.08-2.12 mm (0.0032-0.0834 in) occurs between the sensor and the teeth on the speed sensor reluctor wheel as the drive sprocket rotates. The speed sensor reluctor wheel is secured to and turns with the drive sprocket by the tangs on the drive sprocket forward thrust washer.

The sensor consists of a permanent magnet surrounded by a coil of wire. As the turbine shaft rotates the speed sensor reluctor wheel and the drive sprocket, an AC signal is produced by the ISS. This AC signal consists of a voltage and frequency that changes based on vehicle speed. The control module uses the frequency portion of this signal to determine input shaft speed. Higher input shaft speeds induce a higher frequency and a higher voltage measurement at the sensor. The voltage portion of the signal is used in diagnostic procedures.

Sensor resistance should measure between 820-1020 ohms at 20°C (68°F). Output voltage will vary with the vehicle speed from a minimum of 0.5 volts AC at 300 RPM to 200 volts at 6,000 RPM.

Scheme 78

The shift solenoid valves are two identical, normally open, electronic exhaust valves that control upshifts and downshifts in all forward gear ranges. These shift solenoid valves work together in a combination of ON and OFF sequences in order to control the positions of the 1-2 and 2-3 shift valve trains. The control module monitors numerous inputs in order to determine the appropriate solenoid state combination and the transmission gear for the vehicle operating conditions.

Electronic Component Description

The control module energizes the shift solenoids by providing a ground to the solenoid's electrical circuit. This sends a current through the coil winding of the solenoid, thereby creating a magnetic field. The magnetic field repels the plunger inside the solenoid. This seats the solenoid metering ball against the fluid inlet port. This action prevents the exhaust of fluid through the solenoid and provides an increase in fluid pressure at the end of the shift valves. This fluid pressure initiates an upshift by moving the shift valves. Refer to the oil flow diagrams for a complete description of the hydraulic control of the shift valves for each gear range.

Shift solenoid resistance should measure between 19-24 ohms when measured at 20°C (68°F) and between 24-31 ohms when measured at 88°C (190°F).

The shift solenoid valves should energize when the voltage is greater than 7.5 volts. The shift solenoid valves should de-energize when the voltage is less than one volt.

Scheme 79

The pressure control (PC) solenoid valve is a precision electronic pressure regulator that controls transmission line pressure based on current flow through its coil windings. As current flow is increased, the magnetic field which is produced by the coil moves the solenoid's plunger further away from the exhaust port. Opening the exhaust port decreases the output fluid pressure, which is regulated by the PC solenoid valve. This ultimately decreases line pressure. The control module controls the PC solenoid valve based upon various inputs including throttle position, fluid temperature, MAP sensor, and gear state.

The control module controls the PC solenoid valve on a positive duty cycle at a fixed frequency of 585 Hz (cycles per second). Duty cycle is defined as the percentage of time when current flows through the solenoid coil during each cycle. A higher duty cycle provides a greater current flow through the solenoid. The high (positive) side of the PC solenoid valve electrical circuit at the control module controls the PC solenoid valve operation. The control module provides a ground path for the circuit, monitors average current, and continuously varies the PC solenoid valve duty cycle in order to maintain the correct average current flowing through the PC solenoid valve.

Electronic Component Description

The PC solenoid valve resistance should measure between 3-5 ohms when measured at 20°C (68°F).

Scheme 80

The TCC PWM solenoid valve is a normally closed (hydraulically), pulse width modulation (PWM) solenoid which is used to control the apply and release of the converter clutch. The control module operates the solenoid with a negative duty cycle at a fixed frequency of 32 Hz in order to control the rate of TCC apply/release. The solenoid's ability to ramp the TCC apply and release pressures results in smoother TCC operation.

When the vehicle's operating conditions are appropriate to apply the TCC, the control module immediately increases the duty cycle to approximately 22 percent. The control module then ramps the duty cycle up to a maximum of 98 percent in order to achieve full TCC apply pressure. The rate at which the control module increases the duty cycle controls the TCC apply. Similarly, the control module also ramps down the TCC solenoid duty cycle in order to control TCC release.

Some operating conditions prevent or enable TCC apply under various conditions. Refer to Automatic Transmission Fluid Temperature Sensor in this section. Also, if the control module receives a zero voltage signal from the TCC brake switch, signaling that the brake pedal has been depressed, the control module immediately releases the TCC.

TCC duty cycle for ECCC equipped vehicles is 22 percent for minimum apply pressure and 43 percent for maximum apply pressure. The TCC PWM solenoid valve will typically be 40-60 percent at full apply. Your results may vary.

The TCC PWM solenoid valve resistance should measure 10-12 ohms when measured at 20°C (68°F) and 13-15 ohms when measured at 88°C (190°F).

Scheme 81

The automatic transmission fluid pressure (TFP) switch is attached to the valve body and consists of one fluid pressure switch that monitors TCC release pressure. This switch is used as a diagnostic tool to confirm that the TCC is actually OFF when it has been commanded OFF by the control module.

The TCC release switch is a normally-closed pressure switch. A normally-closed switch allows current to flow from the positive contact through the switch to ground when no fluid is present. Fluid pressure moves the diaphragm to disconnect the positive and ground contacts, opening the switch and stopping current flow. This change in switch status electronically signals the control module that the TCC is released.

Scheme 82

The lever assembly-manual shaft detent with internal mode switch (IMS) is a sliding contact electrical switch assembly that corresponds to the PRNDL position selected. Each of the PRNDL positions has a unique ground pattern on four wires from the control module.

The assembly consists of two major components

1. The internal mode switch that consists of: The housing (1), which makes up the stationary contacts. The insulator (2), which makes up the moving contacts and is secured on the detent lever (4).
2. The lever assembly which consists of: The manual shaft (3) The detent lever (4)

The range detection is accomplished by securing the moving contacts to the detent lever. When the driver selects a PRNDL position, the detent lever inside the transmission rotates. This rotates the insulator which in turn grounds the four wires in a unique pattern for each gear selection, corresponding to the PRNDL position selected. The IMS is electrically connected by five wires (four of which the control module supplies voltage to and one wire that is a common ground) to the transmission pass through connector.

Scheme 83

The automatic transmission fluid temperature (TFT) sensor is a negative temperature coefficient thermistor (temperature sensitive resistor) that provides information to the control module regarding the transmission fluid temperature. The TFT sensor clips on to the valve body and is replaced as a separate component and not as a part of the AT wiring harness assembly. The TFT sensor monitors non-pressurized fluid in the sump in order to determine the operating temperature of the transmission fluid.

The internal electrical resistance of the sensor varies in relation to the operating temperature of the transmission fluid. The control module sends a 5 volt reference signal to the TFT sensor and the control module measures the voltage drop in the electrical circuit. A lower fluid temperature creates a higher resistance in the TFT sensor, which produces a higher voltage signal.

The control module uses this input in order to help determine the proper line pressure, shift schedules and TCC apply. When the transmission fluid temperature reaches 130°C (266°F), the control module enters Hot Mode. Above this temperature the control module modifies the transmission shift schedules and the TCC apply in an attempt to reduce the fluid temperature by reducing the transmission heat generation. During Hot Mode the control module applies the TCC at all times in third and fourth gears. Also, the control module performs the 2-3 and the 3-4 shifts earlier in order to help reduce fluid heat generation.

The control module stays in Hot Mode until the temperature drops below 120°C (248°F).

Scheme 84

The transmission electrical connector is an important part of the transmission operating system. Any interference with the electrical connection can cause the transmission to set Diagnostic Trouble Codes (DTCs) or affect proper operation.

The following items can affect the electrical connection

1. Bent pins in the connector from rough handling during connection and disconnection
2. Wires that are within either the internal or external wiring harness which back away from the pins or become uncrimped
3. Dirt contamination entering the connector when disconnected
4. Pins in the internal wiring connector backing out of the connector or pushed out of the connector during reconnection
5. Excessive transmission fluid leaking into the connector, wicking up into the external wiring harness and degrading the wire insulation
6. Moisture intrusion in the connector
7. Low pin retention in the external connector from excessive connection and disconnection of the wiring connector assembly
8. Pin corrosion from contamination
9. Damaged connector assembly

Remember the following points

1. In order to remove the connector, squeeze the two tabs toward each other and pull straight up without pulling by the wires.
2. Limit twisting or wiggling the connector during removal. Bent pins can occur.
3. Do not pry the connector off with a screwdriver or other tool.
4. Visually inspect the seals to ensure that they are not damaged during handling.
5. In order to reinstall the external wiring connector, first orient the pins by lining up the arrows on each half of the connector. Push the connector straight down into the transmission without twisting or angling the mating parts.
6. The connector should click into place with a positive feel and/or noise.
7. Whenever the transmission external wiring connector is disconnected from the internal harness and the engine is operating, DTCs will set. Clear these DTCs after reconnecting the external connector.

Special Tools

Special Tools Illustration Tool Number/Description Scan Tool J 6125-B Slide Hammer J 6125-1B Slide Hammer Adapter J 21867 Pressure Gage J 21867-15 Braided Transmission Oil Pressure Test Hose J 23129 Universal Seal Remover J 29130 Axle Shaft Seal Installer J 34094-A Thermo Element Height Gage J 34115 Sprocket Bearing Installer J 35138 Converter End Play Checker J 35616-B GM Terminal Test Kit J 35944-A Transmission Oil Cooler and Line Flusher J 35944-22 Transmission Oil Cooler Flushing Fluid J 36850 Transjel Lubricant J 37096 Flywheel Holder J 37292-B Axle Seal Protector J 39200 Digital Multimeter (DMM) J 42562 Axle Removal Wedge J 44152 Jumper Harness (20 pins) J 44246 Solenoid Testing Kit J 45096 Transmission Oil Cooling System Flush and Flow Test Tool J 45681 Jumper Harness

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Scheme 94

See also:
• Air Cleaner Intake Duct Replacement
• Lifting and Jacking the Vehicle
• Knee Bolster Replacement
• Fastener Notice
• Transmission Fluid Checking Procedure
• Fluid and Lubricant Recommendations
• Capacities - Approximate Fluid
• Air Cleaner Assembly Replacement
• Intermediate Steering Shaft Replacement
• Coolant Heater Cord Replacement (LA1)
• Vent Hose Assembly Replacement (LA1)
• Frame Replacement - Front (W/AWD)
• Engine Replacement
• Exhaust Crossover Pipe Replacement (LA1)
• Engine Support Fixture
• Stabilizer Shaft Replacement
• Power Steering Gear Heat Shield Replacement
• Engine Mount Replacement
• Transfer Case and/or Seal Replacement
• Tire and Wheel Removal and Installation
• Splash Shield Replacement - Engine
• Wheel Drive Shaft Replacement - Front
• Fluid Leak Diagnosis
• Fastener Tightening Specifications
• Starter Motor Replacement (LA1)
• Propeller Shaft Replacement
• Automatic Transmission Oil Cooler Flushing and Flow Test (J35944-A)
• Starter Motor Removal
• Starter Motor Installation
• Transmission Fluid Temperature (TFT) Sensor Specifications
• Automatic Transmission Range Selector Cable Adjustment
• Automatic Transmission Range Selector Cable Replacement
• Fluid Capacity Specifications
• Final Drive Replacement