GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

  1. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  2. Notice: To prevent internal damage to the flexible coupling of the catalytic converter assembly, the converter must be supported. The vertical movement at the rear of the catalytic converter assembly must not exceed 6 degrees up or down.

  3. Suitably support the exhaust system.

  4. Object Number: 289493  Size: SH
  5. Remove the three-way catalytic converter hangers.
  6. Inspect the three-way catalytic converter brackets for serviceability. Repair or replace as necessary.

Installation Procedure


    Object Number: 289493  Size: SH
  1. Install the three-way catalytic converter hangers.
  2. Remove the support from the exhaust system and vehicle.
  3. Lower the vehicle.
  4. Inspect the exhaust system for leaks and underbody contact.