GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2009 🢒 Sierra - 4WD 🢒 Transmission 🢒 Automatic Transmission - Allison 🢒 Exhaust Pipe Replacement - Left Side

Removal Procedure
  1. Remove the turbocharger exhaust pipe. Refer to Turbocharger Exhaust Pipe Replacement.

    2. Object Number: 707396 Size: SH
  2. Remove the transmission. Refer to Transmission Replacement.
  3. Remove the exhaust heat shield nuts (2) and heat shield (3) from the dash panel.

    4. Object Number: 1334829 Size: SH
  4. Remove the exhaust pipe heat shield bolts and shield.

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

    6. Object Number: 1334832 Size: SH
  6. Remove the exhaust pipe and gaskets. Discard the gaskets.

Installation Procedure

    Object Number: 1334832 Size: SH
  1. Position the exhaust pipe with a NEW gasket to the turbocharger.
  2. Loosely install the exhaust pipe to turbocharger bolts.
  3. Position the exhaust pipe with a NEW gasket to the exhaust manifold. Align the tabs on the gasket to face downward.
  4. Loosely install the exhaust pipe to exhaust manifold bolts.

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


    Object Number: 1872441 Size: SH
  5. Tighten the exhaust pipe bolts in the sequence shown to 53 N·m (39 lb ft).

    6. Object Number: 1334829 Size: SH
  6. Install the exhaust pipe heat shield bolts and tighten to 10 N·m (89 lb in).

    7. Object Number: 707396 Size: SH
  7. Install the left side exhaust heat shield (3) at the dash panel.
  8. Install the heat shield nuts (2) and tighten to 9 N·m (80 lb in).
  9. Install the transmission. Refer to Transmission Replacement.
  10. Install the turbocharger exhaust pipe. Refer to Turbocharger Exhaust Pipe Replacement.