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HOMESERVICE MANUALSCHEVROLET2001CHEVY EXPRESS G2500, VAN CARGO EXTENDED, 5.7 R, L31/KL8REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 660 (ENGINE EXHAUST SYSTEM)REPAIR INSTRUCTIONSEXHAUST CROSSOVER PIPE REPLACEMENT (3.8L)INSTALLATION PROCEDURE
2001 Chevrolet Chevy Express G2500, Van Cargo Extended, 5.7 R, L31/KL8

Installation Procedure

2001 Chevrolet Chevy Express G2500, Van Cargo Extended, 5.7 R, L31/KL8SECTION Installation Procedure
WARNING: This page is about a different car, the 2003 Pontiac Grand Prix. However, it is still accessible from the selected car via links, so may be relevant.
  1. Install the exhaust crossover pipe seal to the exhaust crossover pipe at the right exhaust manifold connection.
  2. Install the exhaust crossover pipe.
    NOTE: Refer to FASTENER NOTICE in Cautions and Notices.
  3. Install the exhaust crossover pipe bolts.

    Tighten 

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

    Fig 1: Installing Exhaust Crossover Pipe And Bolts
    G02080701Courtesy of GENERAL MOTORS CORP.
  4. Install the exhaust crossover heat shield.
  5. Install the exhaust crossover heat shield nuts.

    Tighten 

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

  6. Install the air cleaner intake duct.
  7. Install the fuel injector sight shield. Refer to FUEL INJECTOR SIGHT SHIELD REPLACEMENT (L36) or FUEL INJECTOR SIGHT SHIELD REPLACEMENT (L67) in Engine Mechanical - 3.8L.
    Fig 2: Installing Exhaust Crossover Heat Shield And Nuts
    G02080702Courtesy of GENERAL MOTORS CORP.
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.