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HOMESERVICE MANUALSPONTIAC2008GRAND PRIX BASEREPAIR AND DIAGNOSISENGINE MECHANICALENGINE EXHAUST SYSTEMREPAIR INSTRUCTIONSEXHAUST CROSSOVER PIPE REPLACEMENT (L26)INSTALLATION PROCEDURE
2008 Pontiac Grand Prix Base

Installation Procedure

2008 Pontiac Grand Prix BaseSECTION Installation Procedure
    Fig 1: Right Exhaust Crossover Pipe Studs
    GM911162Courtesy of GENERAL MOTORS CORP.
  1. Install the exhaust crossover pipe seal (4) to the exhaust crossover pipe (1) at the right exhaust manifold connection.
  2. Install the exhaust crossover pipe (1).
    3. NOTE: Refer to FASTENER NOTICE .
  3. Install the exhaust crossover pipe studs (3) and the bolts (2).

    Tighten:  Tighten the studs and the bolts to 20 N.m (15 lb ft).

    4. Fig 2: Right Exhaust Crossover Heat Shield
    GM910984Courtesy of GENERAL MOTORS CORP.
  4. Install the exhaust crossover heat shield (2).
  5. Install the exhaust crossover heat shield nuts (1).

    Tighten:  Tighten the nuts to 20 N.m (15 lb ft).

  6. Install the air cleaner intake duct. Refer to Air Cleaner Inlet Duct Replacement .
  7. Install the fuel injector sight shield. Refer to Fuel Injector Sight Shield Replacement .
RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.