Automatic Transmission (Cvt): Removal & Installation Nissan Quest IV

Precaution for TCM and Transaxle Assembly Replacement

1. When replaced the TCM, refer to " «DESCRIPTION»(ref-672632-S28841686282014112400000) ".
2. When replaced the transaxle assembly, refer to " «DESCRIPTION»(ref-672632-S01792467142014112400000) ".

REMOVAL

Rotate bayonet ring counterclockwise. Pull out CVT unit harness connector upward and remove it.

Scheme 50

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Scheme 53

1. Align delta marking on CVT unit harness connector terminal body with [] marking on bayonet ring. Insert CVT unit harness connector. Then rotate bayonet ring clockwise.
2. Rotate bayonet ring clockwise until delta marking on CVT unit harness connector terminal body is aligned with the slit on bayonet ring as shown in the figure (correctly fitting condition). Install CVT unit harness connector to CVT unit harness connector terminal body. CAUTION: Securely align delta marking on CVT unit harness connector terminal body with bayonet ring slit. Then, be careful not to make a half fit condition as shown in the figure. Never mistake the slit of bayonet ring for other dent portion.

Scheme 54

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Scheme 56

1. Turn ignition switch OFF and disconnect negative battery cable before connecting or disconnecting the TCM harness connector. Because battery voltage is applied to TCM even if ignition switch is turned OFF.
2. When connecting or disconnecting pin connectors into or from TCM, do not damage pin terminals (bend or break). Check that there are not any bends or breaks on TCM pin terminal, when connecting pin connectors.
3. Perform TCM input/output signal inspection and check whether TCM functions normally or not before replacing TCM. " «REFERENCE VALUE»(ref-672632-S22408778072014112400000) ".
4. Perform " «DTC Confirmation Procedure»(ref-672632-S39908843322014112400000) " after performing each TROUBLE DIAGNOSIS. If the repair is completed the DTC should not be displayed in the "DTC Confirmation Procedure".
5. Always use the specified brand of CVT fluid. Refer to " «RECOMMENDED FLUIDS AND LUBRICANTS»(ref-672624-S37238398562014112400000) ".
6. Use lint-free paper, not cloth rags, during work.
7. Dispose of the waste oil using the methods prescribed by law, ordinance, etc. after replacing the CVT fluid.

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Scheme 58

1. Disconnect the battery cable from the negative terminal. Refer to " «REMOVAL AND INSTALLATION»(ref-672612-S30598946682014112400000) ".
2. Move selector lever to "N" position. CAUTION: When pushing shift lock release button, warp waste around the tip of flat screw driver to prevent damage.
3. Slide knob cover (1) below selector lever downward. CAUTION: Be careful not to damage knob cover.
4. Pull lock pin (2) out of selector lever knob (3).
5. Remove selector lever knob and knob cover.
6. Remove cluster lid C. Refer to " «REMOVAL AND INSTALLATION»(ref-672652-S11949434712014112400000) ".
7. Disconnect CVT shift selector connector.
8. Remove control cable (1) from CVT shift selector assembly (2).
9. Remove CVT shift selector assembly.

INSTALLATION

Note the following, and install in the reverse order of removal.

Scheme 59

1. When installing control cable (1) to CVT shift selector assembly (2), check that control cable is fully pressed in with the ribbed (A) surface facing rearward.
2. Refer to the followings when installing the selector lever knob to the CVT shift selector assembly.

1. Install the lock pin (2) to the selector lever knob (3).
2. Install the knob cover (1) to the selector lever knob.
3. Insert the selector lever knob into the CVT shift selector assembly until it clicks. CAUTION: When pressing the selector lever knob onto the selector lever, never press the selector lever knob button. Never strike the selector lever knob to press it into place.
4. After installing the selector lever knob to the CVT shift selector assembly, check that the pulling on the selector lever knob does not disconnect it.

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Scheme 61

1. Disconnect the battery cable from the negative terminal. Refer to " «REMOVAL AND INSTALLATION»(ref-672612-S30598946682014112400000) ".
2. Remove control cable from CVT shift selector assembly. Refer to " «REMOVAL AND INSTALLATION»(ref-672632-S38955126092014112400000) ".
3. Remove air duct (inlet) and air cleaner case. Refer to " «REMOVAL AND INSTALLATION»(ref-672620-S13912561332014112400000) ".
4. Remove the control cable installation nut from the manual lever.
5. Remove lock plate (1) from control cable.
6. Remove instrument lower cover center. Refer to " «REMOVAL AND INSTALLATION»(ref-672652-S11949434712014112400000) ".
7. Remove bolts (<==) of retainer (A).
8. Remove the control cable from the vehicle.
9. Remove bracket from transaxle assembly.

Note the following, and install in the reverse order of removal.

Scheme 62

1. When installing control cable (1) to CVT shift selector assembly (2), check that control cable is fully pressed in with the ribbed (A) surface facing rearward.
2. Install the socket (A) onto the CVT shift selector assembly. CAUTION: Place the socket onto the CVT shift lever, then fasten it in place from above. Check that the pulling on the socket does not disconnect it.

1. Disconnect the battery cable from the negative terminal. Refer to " «REMOVAL AND INSTALLATION»(ref-672612-S30598946682014112400000) ".
2. Remove air duct (inlet). Refer to " «REMOVAL AND INSTALLATION»(ref-672620-S13912561332014112400000) ".
3. Move battery harness to a place to keep the harness clear of working area.
4. Disconnect TCM connector.
5. Remove TCM.

Install in the reverse order of removal.

1. Disconnect the battery cable from the negative terminal. Refer to " «REMOVAL AND INSTALLATION»(ref-672612-S30598946682014112400000) ".
2. Remove air duct (inlet). Refer to " «REMOVAL AND INSTALLATION»(ref-672620-S13912561332014112400000) ".
3. Remove clip from air cleaner case.
4. Remove air cleaner case and air duct assembly. Refer to " «REMOVAL AND INSTALLATION»(ref-672620-S13912561332014112400000) ".
5. Remove clip from heater pipe.
6. Remove air breather hose from transaxle assembly.

Note the following, and install in the reverse order of removal.

Scheme 63

Scheme 64

1. Remove the battery. Refer to " «REMOVAL AND INSTALLATION»(ref-672612-S30598946682014112400000) ".
2. Remove ECM and bracket. Refer to " «REMOVAL AND INSTALLATION»(ref-672638-S41961629162014112400000) ".
3. Remove air duct (inlet), air duct assembly, and air cleaner case. Refer to " «REMOVAL AND INSTALLATION»(ref-672620-S13912561332014112400000) ".
4. Disconnect secondary speed sensor connector.
5. Remove secondary speed sensor.
6. Remove O-ring from secondary speed sensor.

Note the following, and install in the reverse order of removal.

Note the following, and install in the reverse order of removal.

Scheme 65

1. Drive each differential side oil seal evenly using the drift so that differential side oil seal protrudes by the dimension (C) respectively. Unit: mm (in) Dimension C 0 ± 0.5 (0 ± 0.020) NOTE: Differential side oil seal pulling direction is used as the reference. Drift to be used: Location Tool number (Kent-Moore No.) Transaxle case side ST33400001 (J-26082) Converter housing side

Note the following, and install in the reverse order of removal.

1. Install the oil pan to the transaxle case with the following procedure.

Scheme 66

1. Install the oil pan gasket to the oil pan.
2. Install the oil pan assembly to the transaxle case, and then temporarily tighten the oil pan mounting bolt.
3. Tighten the oil pan mounting bolts in the order shown in the figure to the specified torque.
4. Tighten the oil pan mounting bolts again clockwise from (1) shown in the figure to the specified torque.

1. Remove air duct (inlet). Refer to " «REMOVAL AND INSTALLATION»(ref-672620-S13912561332014112400000) ".
2. Remove the battery. Refer to " «REMOVAL AND INSTALLATION»(ref-672612-S30598946682014112400000) ".
3. Remove ECM and bracket. Refer to " «REMOVAL AND INSTALLATION»(ref-672638-S41961629162014112400000) ".
4. Remove hose clamp, and then remove water hoses.
5. Remove heater thermostat.
6. Remove bracket.

Note the following, and Install in the reverse order of removal.

Scheme 67

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1. Insert water hose according to dimension "A" described below. Water hose (1) Insert side tube (2) Dimension "A" Water hose A Water outlet 27 mm (1.06 in) CVT oil warmer Water hose B CVT oil warmer Heater thermostat Water hose C Heater thermostat Heater pipe
2. Set hose clamps (1) from the end of CVT water hose A (2) according to dimension "A" described below. Dimension "A": 5 - 7 mm (0.20 - 0.28 in)
3. Hose clamp should not interfere with the bulge.
4. To install hose clamp (1) to CVT water hose B/C (2), refer to the following dimension "B". Dimension B: 0 - 1 mm (0 - 0.04 in) Water hose Hose end Paint mark Position of hose clamp Water hose A Water outlet side Facing upward Facing upward CVT oil warmer side Facing forward Facing forward Water hose B CVT oil warmer side Facing forward Facing forward Heater thermostat side - Facing forward Water hose C Heater thermostat side - Facing forward Heater pipe side Facing upward Facing upward

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Scheme 71

1. Fully immerse the heater thermostat (1) in a container (A) filled with water. Continue heating the water while stirring.
2. Continue heating the heater thermostat for 5 minutes or more after bringing the water to a boil.
3. Quickly take the heater thermostat out of the hot water, measure the heater thermostat within 10 seconds.
4. Place dial indicator (A) on the pellet (B) and measure the elongation from the initial state. Standard: Refer to " «HEATER THERMOSTAT»(ref-672632-S09737815592014112400000) ".
5. If out of standard, replace heater thermostat.

1. Remove the battery. Refer to " «REMOVAL AND INSTALLATION»(ref-672612-S30598946682014112400000) ".
2. Remove air duct (inlet) and air cleaner case. Refer to " «REMOVAL AND INSTALLATION»(ref-672620-S13912561332014112400000) ".
3. Remove ECM and bracket. Refer to " «REMOVAL AND INSTALLATION»(ref-672638-S41961629162014112400000) ".
4. Remove hose clamp, and then remove CVT fluid cooler hoses.
5. Remove CVT fluid cooler tube.

Note the following, and Install in the reverse order of removal.

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Scheme 73

1. When installing the fluid cooler tube (1) onto the transaxle assembly, install it so that it is in contact with the transaxle case boss (A).
2. Insert CVT fluid cooler hose according to dimension "A" described below. CVT fluid cooler hose (1) Insert side tube (2) Dimension "A" CVT fluid cooler hose A CVT fluid cooler tube 33 mm (1.30 in) CVT oil warmer CVT fluid cooler hose B Radiator 30 mm (1.18 in) CVT fluid cooler hose C CVT fluid cooler hose B CVT oil warmer CVT fluid cooler hose D Transaxle assembly Radiator
3. Set hose clamps (1) from the end of CVT fluid cooler hose (2) according to dimension "A" described below. Dimension "A": 5 - 9 mm (0.20 - 0.35 in)
4. Hose clamp should not interfere with the bulge. CVT fluid cooler hose Hose end Paint mark Position of hose clamp CVT fluid cooler hose A CVT fluid cooler tube Upward and 45° frontward Upward and 45° frontward CVT oil warmer Frontward Frontward CVT fluid cooler hose B Radiator Upward Upward CVT fluid cooler hose C CVT fluid cooler hose B Upward Upward CVT oil warmer Frontward Frontward CVT fluid cooler hose D Transaxle assembly Upward Upward Radiator Backward Backward

1. Remove water hose from CVT oil warmer. Refer to " «REMOVAL AND INSTALLATION»(ref-672632-S20599680512014112400000) ".
2. Remove fluid cooler hose from CVT oil warmer. Refer to " «CVT FLUID COOLER HOSE: REMOVAL AND INSTALLATION»(ref-672632-S17313755262014112400000) ".
3. Remove CVT oil warmer.
4. Remove bracket.

Install in the reverse order of removal.

Removal and Installation

Note. Cap or plug openings to prevent fluid from spilling.

1. Remove front fender protector LH. Refer to " «REMOVAL AND INSTALLATION»(ref-672623-S10207174702014112400000) ".
2. Pull out fluid cooler hose D from CVT fluid filter. Refer to " «CVT FLUID COOLER HOSE: EXPLODED VIEW»(ref-672632-S31217999672014112400000) ".
3. Remove filter hose.
4. Remove CVT fluid filter from transaxle assembly.

Note the following, and install in the reverse order of removal.

Scheme 74

1. Install filter hose (1) and hose clamps (2) as shown in the figure.

Scheme 75

Note. When replacing TCM and transaxle assembly as a set, replace transaxle assembly first and then replace TCM. Refer to " DESCRIPTION ".

1. Remove the engine assembly, the transaxle assembly, and front suspension member as a set. Refer to " «REMOVAL AND INSTALLATION»(ref-672620-S00497577782014112400000) ".
2. Disconnect following harness connector and wire harness. CVT unit connector Secondary speed sensor connector Heated oxygen sensor 2 (bank 2) connector Crankshaft position sensor connector
3. Remove crankshaft position sensor (POS). Refer to " «REMOVAL AND INSTALLATION»(ref-672620-S29965940092014112400000) ".
4. Remove air breather hose. Refer to " «REMOVAL AND INSTALLATION»(ref-672632-S00593180592014112400000) ".
5. Remove CVT fluid level gauge.
6. Remove CVT fluid charging pipe.
7. Remove O-ring from CVT fluid charging pipe.
8. Remove rear plate cover. Refer to " «REMOVAL AND INSTALLATION»(ref-672620-S29965940092014112400000) ".
9. Turn crankshaft, and remove the tightening nuts for drive plate and torque converter. CAUTION: When turning crankshaft, turn it clockwise as viewed from the front of the engine.
10. Remove transaxle assembly fixing bolts with power tool.
11. Remove transaxle assembly from engine assembly with a hoist. CAUTION: Secure torque converter to prevent it from dropping.
12. Remove CVT oil warmer. Refer to " «CVT OIL WARMER: REMOVAL AND INSTALLATION»(ref-672632-S33804063372014112400000) ".

Note the following, and install in the reverse order of removal.

Scheme 76

1. Check fitting of dowel pins (<==) when installing transaxle assembly to engine assembly.
2. Follow the procedure below and install transaxle to engine.

Scheme 77

1. Rotate torque converter to align a torque converter stud bolt with the service hole.
2. Rotate drive plate to align a torque converter stud bolt insertion hole of drive plate with service hole.
3. Install transaxle to engine. CAUTION: Be careful not to strike the drive plate when inserting torque converter stud bolts to drive plate holes.
4. Tighten the fixing bolts in accordance with the following. Insertion direction Engine assembly to transaxle assembly Transaxle assembly to engine assembly Bolt position A D B C Number of bolts 1 4 2 2 Bolt length mm (in) 55 (2.17) 45 (1.77) 39 (1.54) 108 (4.25) Tightening torque N.m (kg-m, ft-lb) 74.5 (7.6, 55) 50 (5.1, 37) 74.5 (7.6, 55)
5. After tighten the torque converter nuts temporarily, tighten the torque converter nuts to the specified torque. CAUTION: When turning crankshaft, turn it clockwise as viewed from the crankshaft pulley side. When tightening the torque converter nuts after fixing the crankshaft pulley bolts, confirm the tightening torque of the crankshaft pulley mounting bolts. Refer to " «EXPLODED VIEW»(ref-672620-S38604906702014112400000) ".