GM Service Manual Online
For 1990-2009 cars only

Exhaust Pipe Replacement LY7

Removal Procedure

Caution: Refer to Exhaust Service Caution in the Preface section.

Caution: Refer to Protective Goggles and Glove Caution in the Preface section.


    Object Number: 1586011  Size: SH
  1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
  2. Remove the exhaust pipe to muffler nuts.

  3. Object Number: 1586013  Size: SH
  4. Remove the exhaust pipe to right catalytic converter nuts.
  5. Pull back the muffler assembly in order to remove the exhaust pipe from the right catalytic converter.
  6. Remove and discard the exhaust pipe gasket.

Installation Procedure


    Object Number: 1586013  Size: SH
  1. Install a NEW exhaust pipe gasket.
  2. Pull back the muffler assembly in order to install the exhaust pipe to the right catalytic converter.
  3. Notice: Refer to Fastener Notice in the Preface section.

  4. Install the exhaust pipe to right catalytic converter nuts.
  5. Tighten
    Tighten the nuts to 25 N·m (18 lb ft).


    Object Number: 1586011  Size: SH
  6. Install the exhaust pipe to muffler nuts.
  7. Tighten
    Tighten the nuts to 25 N·m (18 lb ft).

  8. Lower the vehicle.

Exhaust Pipe Replacement LE5 With MH8

Removal Procedure

  1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle.

  2. Object Number: 2081577  Size: SH
  3. Remove the exhaust pipe (2) to converter nuts (1).

  4. Object Number: 2081590  Size: SH
  5. Remove the exhaust pipe to muffler assembly nuts (2).
  6. Move the muffler assembly rearward in order to disengage the exhaust pipe.
  7. Discard both gaskets.

Installation Procedure

  1. Install new gaskets to the exhaust pipe and muffler assembly.
  2. Move the muffler assembly rearward in order to install the exhaust between the converter and muffler assembly.
  3. Notice: Refer to Fastener Notice in the Preface section.


    Object Number: 2081590  Size: SH
  4. Install the exhaust pipe to muffler assembly nuts (1) and tighten to 25 N·m (18 lb ft).

  5. Object Number: 2081577  Size: SH
  6. Install exhaust pipe (2) to converter nuts (1) and tighten to 25 N·m (18 lb ft).
  7. Lower the vehicle.