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HOMESERVICE MANUALSCHEVROLET2006CHEVY EXPRESS G2500, VAN CARGO, 6.6 2REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 380 (ENGINE CONTROLS - 6.6L (LB7) (INTRODUCTION))REPAIR INSTRUCTIONSGLOW PLUG RELAY REPLACEMENT (CALIFORNIA EMISSIONS)INSTALLATION PROCEDURE
2006 Chevrolet Chevy Express G2500, Van Cargo, 6.6 2

Installation Procedure

2006 Chevrolet Chevy Express G2500, Van Cargo, 6.6 2SECTION Installation Procedure
WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
  1. Install the glow plug relay (3) onto the bracket (4).
    NOTE: Refer to Fastener Notice in Cautions and Notices.
  2. Install the glow plug relay bolt (6).

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

  3. Connect the glow plug electrical connectors (2) to the glow plug relay (3).
  4. Install the battery supply cable and nut (1) onto the glow plug relay.

    Tighten:  Tighten the nut to 5 N.m (44 lb in).

    5. Fig 1: Glow Plug Relay Components
    GM741153Courtesy of GENERAL MOTORS CORP.
  5. Install the upper intake manifold cover.
  6. Install the upper intake manifold cover to the outlet duct.
  7. Tighten the outlet duct clamp at the upper intake manifold cover.

    Tighten:  Tighten the clamp to 6 N.m (53 lb in).

    8. Fig 2: View Of Upper Intake Manifold Cover, Outlet Duct & Clamp
    GM813243Courtesy of GENERAL MOTORS CORP.
  8. Connect the negative battery cable. Refer to Battery Negative Cable Disconnect/Connect Procedure (Single Battery) or Battery Negative Cable Disconnect/Connect Procedure (Auxiliary Battery) in Engine Electrical.
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.