GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Pontiac 🢒 1999 🢒 Grand Prix 🢒 Engine 🢒 Engine Exhaust 🢒 Tail Pipe Replacement

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.

  2. Suitably support the exhaust system.

    3. Object Number: 372950 Size: SH
  3. Remove the exhaust tail pipe.

Installation Procedure

    Object Number: 372950 Size: SH
  1. Install and adjust the exhaust tail pipe before tightening the tail pipe clamp.

    2. Steps 2, 3, and 4 provide alignment guidelines.


    Object Number: 374058 Size: SH
  2. The rotational angle of the exhaust tail pipe in relation to horizontal can be no more than +/- 2 °.

    3. Right-hand exhaust tail pipe shown. Left-hand opposite.


    Object Number: 374209 Size: SH
  3. The maximum allowable difference between the right-hand and the left-hand exhaust tail pipes is 3.0 mm (.11")

    4. Right-hand exhaust tail pipe shown. Left-hand opposite.


    Object Number: 374218 Size: SH
  4. Right-hand exhaust tail pipe shown. Left-hand opposite.

    5. Object Number: 374280 Size: SH
  5. Tighten the tail pipe clamp.

    6. Tighten
    Tighten the tail pipe clamp to 35 N·m (26 lb ft).

  6. Remove the support from the exhaust system.
  7. Lower the vehicle.
  8. Inspect the exhaust system for leaks and underbody contact.