GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 177088  Size: SH
  1. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  2. Remove the clamp holding the pipe to the turbo.
  3. Remove the flange nuts connecting the front exhaust pipe manifold to the intermediate pipe.
  4. Remove the front exhaust manifold pipe.

Installation Procedure

Notice: 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 locking compound or sealant are identified in the service procedure. 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 in order to avoid damage to parts and systems.


    Object Number: 177088  Size: SH
  1. Install the front exhaust manifold pipe using a new flange gasket and nuts, to the intermediate pipe.
  2. Tighten
    Tighten the nuts to 64 N·m(47 lb ft).

  3. Install the front exhaust manifold pipe to the turbo using the new clamp.
  4. Tighten
    Tighten the clamp to 12 N·m(106 lb in).

  5. Lower the vehicle.