GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

Service the exhaust hangers individually in order to retain the support of the exhaust system.

Caution: In order to avoid being burned, do not service the exhaust system while it is still hot. Service the system when it is cool.

Caution: Always wear protective goggles and gloves when removing exhaust parts as falling rust and sharp edges from worn exhaust components could result in serious personal injury.

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

  2. Object Number: 720668  Size: SH
  3. using a pry bar, bend the front body support bracket open, enough to allow the front hanger to be removed.
  4. Remove the front exhaust hanger from both the front body support bracket and the front exhaust pipe hanger rod.

  5. Object Number: 720676  Size: SH
  6. Apply a suitable lubricant to the body support bracket (1) in order to ease the removal of the intermediate exhaust hanger (2).
  7. Pull outward on the intermediate exhaust hanger (2) in order to remove it from the exhaust pipe hanger rod (3).
  8. Pull inward on the intermediate exhaust hanger (2) in order to remove it from the body support bracket (1).

  9. Object Number: 720679  Size: SH
  10. Apply a suitable lubricant to both the body support bracket (1) and the tail pipe hanger rod (3) in order to ease the removal of the tail pipe hanger (2).
  11. Pull outward on the tail pipe hanger (2) in order to remove it from the tail pipe hanger rod (3)
  12. Pull inward on the tail pipe hanger (2) in order to remove it from the body support bracket (1).

Installation Procedure


    Object Number: 720679  Size: SH
  1. Apply a soapy solution to both the body support bracket (1), the tail pipe hanger rod (3), and the inner diameter of the tail pipe hanger (2) in order to ease the installation of the hanger (2).
  2. Press the tail pipe hanger (2) over the body support bracket (1).
  3. Press the tail pipe hanger (2) over the tail pipe hanger rod (3).

  4. Object Number: 720676  Size: SH
  5. Apply a soapy solution to the body support bracket (1) and the inner diameter of the intermediate exhaust hanger (2) in order to ease the installation of the hanger (2).
  6. Press the intermediate exhaust hanger (2) over the body support bracket (1).
  7. Press the intermediate exhaust hanger (2) over the exhaust pipe hanger rod (3).

  8. Object Number: 720671  Size: SH
  9. Place the front exhaust hanger under the front exhaust pipe hanger rod.
  10. Place the front exhaust hanger over the front body support bracket.
  11. Important: Ensure that the gap (1) between the body and the front body support bracket does not exceed 6 mm (0.23 in).

  12. Using a pry bar, bend the front body support bracket closed, securing the front exhaust hanger to the front body support bracket.
  13. Lower the vehicle.