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Automatic Transaxle Diagnosis - 4T65-E: Removal & Installation Oldsmobile Aurora II

Automatic Trans 10 illustrations ~1363 words

REMOVAL & INSTALLATION

WARNINGVehicle is equipped with Supplemental Inflatable Restraint (SIR) system. When servicing vehicle, use care to avoid accidental air bag deployment. SIR system-related components are located in various locations throughout interior and exterior of vehicle, depending on application. Do not use electrical test equipment on or near these circuits. If necessary, deactivate SIR system before servicing components. See AIR BAG DEACTIVATION PROCEDURES article in GENERAL INFORMATION.
CAUTIONWhen battery is disconnected, vehicle computer and memory systems may lose memory data. Driveability problems may exist until computer systems have completed a relearn cycle. See COMPUTER RELEARN PROCEDURES article in GENERAL INFORMATION before disconnecting battery.

Removal

  1. Remove the case side cover. See appropriate AUTOMATIC article in TRANSMISSION SERVICING.
  2. Disconnect the transaxle wiring harness.
  3. Remove the input speed sensor clip (441) from the case cover. (Scheme 277)
  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).

Installation

  1. Install the input speed sensor (440) into the case cover. (Scheme 277)
  2. Install the input speed sensor clip (441) into the case cover.
  3. Connect the transaxle wiring harness.
  4. Install the case side cover. See appropriate AUTOMATIC article in TRANSMISSION SERVICING.

Scheme 277

Scheme 277
Scheme 277
  1. Disconnect the negative battery cable.
  2. Remove the left strut brace.
  3. Loosen the band clamp (2) at the throttle body (1), and disconnect the air duct (3) from the throttle body. (Scheme 278)
  4. Disconnect the electrical connectors for the Intake Air Temperature (IAT) sensor and the Mass Air Flow (MAF) sensor.
  5. Loosen the retaining screw (2) for the air cleaner cover. (Scheme 279)
  6. Remove the air cleaner cover (1) and lift the PCM (3) from the housing assembly. (Scheme 280)
  7. Disconnect the harness connectors (2) from the PCM (1).
  8. Remove the PCM from the engine compartment.
  1. Install the connectors (2) to the PCM (1). Tighten the connectors to 71 INCH lbs. (8 N.m). (Scheme 280)
  2. Install the PCM (3) into the air cleaner housing assembly.
  3. Install the air cleaner housing cover (1). (Scheme 279)
  4. Tighten the retaining screw (2) for the air cleaner cover.
  5. Reconnect the air duct (3) to the throttle body (1), and tighten the band clamp (2) at the throttle body. (Scheme 278)
  6. Reconnect the electrical connectors for the IAT sensor and the MAF sensor.
  7. Install the strut brace.
  8. Connect the negative battery cable.
  9. If a new PCM is being installed, program the EEPROM. See appropriate BODY CONTROL MODULES article in ACCESSORIES & EQUIPMENT.

Scheme 278

Scheme 278
Scheme 278

Scheme 279

Scheme 279
Scheme 279

Scheme 280

Scheme 280
Scheme 280
  1. Remove the case side cover. See appropriate AUTOMATIC article in TRANSMISSION SERVICING.
  2. Disconnect the transaxle wiring harness.
  3. Using a small screwdriver or pick, remove the pressure control solenoid valve retainer (314E) from the control valve body (301). (Scheme 281)
  4. Remove the pressure control solenoid (322).
  5. Remove the "O" ring seals (307, 316) from the PC solenoid valve (322) ONLY if they are damaged.
  1. Install new "O" ring seals (307, 316) onto the pressure control (PC) solenoid valve (322), if they had been removed. (Scheme 281)
  2. Install the pressure control solenoid (322).
  3. Hold the PC solenoid valve (322) in the control valve body (301). Install the pressure control solenoid valve retainer (314E) into the control valve body (301).
  4. Connect the transaxle wiring harness.
  5. Install the case side cover. See appropriate AUTOMATIC article in TRANSMISSION SERVICING.

Scheme 281

Scheme 281
Scheme 281
  1. Remove the left sound insulator in the following order: Remove the left sound insulator fasteners from the instrument panel. Disconnect the courtesy lamp and the heater temperature sensor connector. Remove the left sound insulator.
  2. Rotate the stoplamp/ABS/shift lock switch (2) counterclockwise, then pull to remove the switch. (Scheme 282)
  3. Disconnect the electrical connector from the switch.

Note. The stoplamp switch is self-adjusting when installed properly in the fully locked position. The twist lock type switch requires no further adjustment.

  1. Install the stoplamp switch into the retainer. (Scheme 282)
  2. Press the switch (2) into the retainer until the switch plunger is fully depressed into the switch barrel.
  3. Rotate the switch (2) clockwise until travel has stopped and the switch locks fully into position.
  4. Connect the stoplamp/ABS/shift lock switch electrical connector to the stoplamp switch (2).
  5. Install sound insulator in the following order: Position the left sound insulator (2) to the instrument panel with the forward left tab is located above the parking brake bracket flange. Connect the courtesy lamp and the heater temperature sensor connector to the insulator. Install the fasteners (1) to the instrument panel. Tighten the fasteners to 17 INCH lbs. (1.9 N.m).

Scheme 282

Scheme 282
Scheme 282
  1. Remove the case side cover. See appropriate AUTOMATIC article in TRANSMISSION SERVICING.
  2. Disconnect the transaxle wiring harness.
  3. Using a small screwdriver or pick, remove the TCC PWM solenoid valve retainer (314F) from the control valve body (301). (Scheme 283)
  4. Remove the torque converter clutch PWM solenoid (334).
  5. Remove the "O" ring seals (305, 306) from the TCC PWM solenoid valve (334) ONLY if they are damaged.
  1. Install new "O" ring seals (305, 306) onto the TCC PWM solenoid valve (334) if they had been removed. (Scheme 283)
  2. Install the torque converter clutch PWM solenoid (334).
  3. Hold the TCC PWM solenoid valve (334) in the control valve body (301). Install the TCC PWM solenoid valve retainer (314F) into the control valve body (301).
  4. Connect the transaxle wiring harness.
  5. Install the case side cover. See appropriate AUTOMATIC article in TRANSMISSION SERVICING.

Scheme 283

Scheme 283
Scheme 283
  1. Remove the case side cover. See appropriate AUTOMATIC article in TRANSMISSION SERVICING.
  2. Use a small flat-bladed tool to remove the wiring harness from the solenoid valve(s), TFP manual valve position switch and/or the temperature sensor.
  3. Remove the wiring harness.
  1. Connect the wiring harness.
  2. Install the wiring harness to the solenoid valve(s), TFP manual valve position switch and/or the temperature sensor.
  3. Install the case side cover. See appropriate AUTOMATIC article in TRANSMISSION SERVICING.
  1. Remove the case side cover. See appropriate AUTOMATIC article in TRANSMISSION SERVICING.
  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). (Scheme 284)
  4. Carefully remove the fluid pressure manual valve position switch. Handle the switch carefully, as 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, as the fluid pressure manual valve position switch is very delicate. (Scheme 284)
  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 control valve body bolts in the following order: Tighten the control valve body bolt (375) to 106 INCH lbs. (12 N.m). Tighten the control valve body bolt (379) to 106 INCH lbs. (12 N.m). Tighten the control valve body bolt (381) to 70 INCH lbs. (8 N.m).
  3. Connect the transaxle wiring harness.
  4. Install the case side cover. See appropriate AUTOMATIC article in TRANSMISSION SERVICING.

Scheme 284

Scheme 284
Scheme 284
  1. Remove the case side cover. See appropriate AUTOMATIC article in TRANSMISSION SERVICING.
  2. Disconnect the transaxle wiring harness.
  3. Using a small screwdriver or pick, remove the 1-2 shift solenoid valve retainer (314D) from the control valve body (301). (Scheme 285)
  4. Remove the 1-2 shift solenoid (315A).
  5. Remove the "O" ring seal (316) from the 1-2 shift solenoid valve (315A) ONLY if it is damaged.
  1. Install a new "O" ring seal (316) onto the 1-2 shift solenoid valve (315A), if it was removed. (Scheme 285)
  2. Install the 1-2 shift solenoid valve (315A).
  3. Connect the transaxle wiring harness.
  4. Hold the 1-2 shift solenoid valve (315A) in the control valve body (301). Install the 1-2 shift solenoid valve retainer (314D) into the control valve body (301).
  5. Install the case side cover. See appropriate AUTOMATIC article in TRANSMISSION SERVICING.

Scheme 285

Scheme 285
Scheme 285
  1. Remove the case side cover. See appropriate AUTOMATIC article in TRANSMISSION SERVICING.
  2. Disconnect the transaxle wiring harness.
  3. Using a small screwdriver or pick, remove the 2-3 shift solenoid valve retainer (314C) from the control valve body (301). (Scheme 286)
  4. Remove the 2-3 shift solenoid valve (315B) from the control valve body (301).
  5. Remove the "O" ring seal (316) from the 2-3 shift solenoid valve (315B) ONLY if it is damaged.
  1. Install a new "O" ring seal (316) onto the 2-3 shift solenoid valve (315B), if it was removed. (Scheme 286)
  2. Install the 2-3 shift solenoid valve (315B) into the control valve body (301).
  3. Install the 2-3 shift solenoid valve retainer (314C) into the control valve body (301).
  4. Connect the transaxle wiring harness.
  5. Install the case side cover. See appropriate AUTOMATIC article in TRANSMISSION SERVICING.

Scheme 286

Scheme 286
Scheme 286

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