GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2009 🢒 TopKick C-Series (Conventional) C4/C5 🢒 Engine 🢒 Engine Exhaust 🢒 Turbocharger Exhaust Pipe Replacement

Removal Procedure

    Object Number: 1870421 Size: SH
  1. Remove the engine cover. Refer to Engine Cover Replacement.
  2. Remove the turbocharger exhaust heat shield bolts.
  3. Remove the turbocharger exhaust heat shield.

    4. Object Number: 1870422 Size: SH
  4. Remove the turbocharger exhaust pipe to right exhaust pipe bracket bolt (1).

    5. Object Number: 1870117 Size: SH
  5. Loosen the turbocharger exhaust pipe to exhaust manifold pipe clamp. Position the clamp down onto the exhaust manifold pipe.

    6. Object Number: 1870423 Size: SH
  6. Loosen the turbocharger exhaust pipe clamp (1).

    7. Object Number: 1870424 Size: SH
  7. Remove the turbocharger exhaust pipe and clamp.

Installation Procedure

    Object Number: 1870424 Size: SH
  1. Place the turbocharger exhaust pipe into position and install the exhaust pipe clamp. Tighten the clamp until snug.

    2. Caution: Refer to Fastener Caution in the Preface section.


    Object Number: 1870422 Size: SH
  2. Install the turbocharger exhaust pipe to right exhaust pipe bracket bolt (1).

    3. Tighten
    Tighten the bolt to 53 N·m (39 lb ft).


    Object Number: 1870423 Size: SH
  3. Tighten the turbocharger exhaust pipe clamp (1).

    4. Tighten
    Tighten the clamp to 12 N·m (106 lb in).


    Object Number: 1870117 Size: SH
  4. Position the turbocharger exhaust pipe to exhaust manifold pipe clamp.

    5. Tighten
    Tighten the clamp to 12.5 N·m (106 lb in).


    Object Number: 1870421 Size: SH
  5. Position the turbocharger exhaust heat shield.
  6. Install the turbocharger exhaust heat shield bolts.

    7. Tighten
    Tighten the bolts to 10 N·m (89 lb in).

  7. Install the engine cover. Refer to Engine Cover Replacement.