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HOMESERVICE MANUALSCHEVROLET2008CHEVY EXPRESS G3500, VAN PASSENGER EXTENDEDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT VARIANT/TRIMSECTION 5 (ENGINE CONTROL SYSTEM & FUEL SYSTEM - 6.6L (LMM) - INTRODUCTION (2 OF 2))REPAIR INSTRUCTIONSGLOW PLUG CONTROL MODULE REPLACEMENTINSTALLATION PROCEDURE
2008 Chevrolet Chevy Express G3500, Van Passenger Extended

Installation Procedure

2008 Chevrolet Chevy Express G3500, Van Passenger ExtendedSECTION Installation Procedure
WARNING: This page is about a different variant/trim than selected.
    Fig 1: Identifying Glow Plug Control Module Bracket
    GM1862083Courtesy of GENERAL MOTORS CORP.
  1. Position the glow plug control module bracket (4), if required.
    2. NOTE: Refer to Fastener Notice .
  2. Install the glow plug control module bracket bolts (3), if required.

    Tighten:  Tighten the bolts to 10 N.m (89 lb in).

  3. Position the glow plug control module (2).
  4. Install the glow plug control module bolts (1).

    Tighten:  Tighten the bolts to 10 N.m (89 lb in).

    5. Fig 2: Identifying Positive Battery Cable
    GM1862082Courtesy of GENERAL MOTORS CORP.
  5. Connect the positive battery cable (1) to the glow plug control module.
    6. Fig 3: View Of Engine Wiring Harness Electrical Connector
    GM1862080Courtesy of GENERAL MOTORS CORP.
  6. Connect the engine wiring harness electrical connector (1) to the glow plug control module.
  7. Connect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection .
  8. If a NEW glow plug control module was installed, program the module. Refer to Control Module References .
  9. Install the engine cover. Refer to Engine Cover Replacement .
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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.