CTS 2003-2005

Transaxle Removal & Installation


Special lifting and support equipment is required for this procedure. The engine must be supported from above to hold the weight of the engine. The subframe and transaxle are lowered out from the bottom of the vehicle. This is not a job for the inexperienced or ill-equipped.

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Fig. Typical engine support fixture needed to hold the engine in place as the transaxle is being removed from the bottom of the vehicle

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Fig. Typical engine mounts and the vehicle subframe

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Fig. Transaxle-to-engine bolts may vary in length. Use care so each bolt is returned to its original location

  1. Disconnect the negative battery cable.
  3. Remove the cosmetic/acoustic engine cover.
  5. Remove the air cleaner duct.
  7. Tag for identification, if necessary, then detach the electrical connectors from the transaxle. These connectors include the Transaxle Range Switch and the solenoid harness connector.
  9. If equipped with the 4T60-E transaxle, disconnect the vacuum hose from the vacuum modulator.
  11. Disconnect the transaxle range selector lever cable from the transaxle range switch. Unbolt the cable bracket and set aside the bracket with the cable.
  13. Remove the fluid filler tube.
  15. Remove the upper transaxle bolts including the wiring harness grounds.
  17. Install a suitable engine support fixture such as GM engine support fixture tool J 28467-A and J-36462, or equivalent. It must be capable of supporting the weight of the engine and the transaxle.
  19. Raise and safely support the vehicle.
  21. Remove the front wheel and tire assemblies.
  23. Disconnect both tie rod ends from the steering knuckles, as outlined in Section 8 of this manual.
  25. Remove the power steering gear heat shield, then remove the power steering gear-to-subframe retaining bolts. Separate the power steering gear from the subframe and se