GM Service Manual Online
For 1990-2009 cars only

Exhaust Pipe Replacement - Left Side 6.6L (LLY)

Removal Procedure

  1. Remove the engine cover. Refer to Engine Cover Replacement.

  2. Object Number: 1334829  Size: SH
  3. Remove the left exhaust pipe heat shield bolts.
  4. Remove the heat shield.

  5. Object Number: 721427  Size: SH
  6. Remove the exhaust pipe bolts in the proper sequence.

  7. Object Number: 1334832  Size: SH
  8. Remove the exhaust pipe and gaskets.
  9. Discard the gaskets.

Installation Procedure


    Object Number: 1334832  Size: SH
  1. Position the exhaust pipe with a NEW gasket to the turbocharger. Align the tab on the gasket at the turbocharger to face inward.
  2. Loosely install the bolts.
  3. Position the exhaust pipe with a NEW gasket to the exhaust manifold. Align the tab on the gasket to face outward.
  4. Loosely install the bolts.
  5. Notice: Refer to Fastener Notice in the Preface section.


    Object Number: 721436  Size: SH
  6. Tighten the exhaust pipe bolts in the sequence shown.
  7. Tighten
    Tighten the bolts to 53 N·m (39 lb ft).


    Object Number: 1334829  Size: SH
  8. Install the exhaust pipe heat shield bolts.
  9. Tighten
    Tighten the bolts to 8 N·m (71 lb in).

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