Before servicing the vehicle, refer to the Precautions Section.
NOTEDisconnecting the negative battery cable on some vehicles may interfere with the functions of the on-board computer systems and may require the computer to undergo a relearning process, once the negative battery cable is reconnected.
NOTEIf working near and/or around the SRS system and components, be sure to properly disable the SRS system. See disarming/arming the SRS system.
- Disconnect the negative battery cable.
- Remove the air cleaner.
Disconnect the TV cable.
- Remove the transmission dipstick.
- Remove the bolt retaining the dipstick tube to the transmission.
- Raise and safely support the vehicle.
- Drain the transmission. Be sure to properly dispose of used fluid.
Disconnect and plug the oil cooler lines.
- Matchmark and remove the driveshaft. Plug the transmission to prevent fluid leakage.
- Disconnect the speedometer cable.
- Disconnect the shift linkage from the transmission.
- Disconnect the electrical connectors from the transmission.
- Remove the torque converter cover.
- Matchmark the torque converter to the flywheel. Remove the torque converter to flywheel retaining bolts and screws. Discard the bolts and screws.
- Remove the starter, as necessary.
- Remove the catalytic converter support bracket.
- Support the transmission using a transmission jack.
Remove the transmission mount and shims. Remove the transmission crossmember assembly.
- Disconnect the TV cable, as required.
- Lower the transmission assembly to gain access to the upper and lower oil cooler lines.
Remove the dipstick tube bolt and screw.
- Plug the transmission to prevent fluid leakage.
- Remove the upper and lower oil cooler lines. Plug all openings to prevent leakage.
- Properly support the engine using the proper support equipment.
Remove the transmission retaining bolts/screws.
Carefully lower the transmission from its mounting and remove it from the vehicle.
NOTEBefore completely removing the unit from the vehicle check to be sure that there are no electrical connectors, vacuum lines, pipes or linkage still attached to the transmission.
Be sure to use new fasteners, as required.
Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread sealer are identified. Do not use paints, lubricants or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners.
- Installation is the reverse of the removal procedure.
Adjust the TV cable, as required.
- Be sure to fill the transmission using the correct grade and type automatic transmission fluid.
- Start the engine and check for leaks. Correct as required.
- Using the GM diagnostic scan tool or aftermarket equivalent reprogram the necessary systems and components. Be sure to follow the scan tool manufacturer-s directions.