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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 REPLACEMENTREMOVAL PROCEDURE
2008 Chevrolet Chevy Express G3500, Van Passenger Extended

Removal Procedure

2008 Chevrolet Chevy Express G3500, Van Passenger ExtendedSECTION Removal Procedure
WARNING: This page is about a different variant/trim than selected.
    Fig 1: View Of Engine Wiring Harness Electrical Connector
    GM1862080Courtesy of GENERAL MOTORS CORP.
  1. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection .
  2. Remove the engine cover. Refer to Engine Cover Replacement .
  3. Disconnect the engine wiring harness electrical connector (1) from the glow plug control module.
    4. Fig 2: Identifying Positive Battery Cable
    GM1862082Courtesy of GENERAL MOTORS CORP.
  4. Disconnect the positive battery cable (1) from the glow plug control module.
    5. Fig 3: Identifying Glow Plug Control Module Bracket
    GM1862083Courtesy of GENERAL MOTORS CORP.
  5. Remove the glow plug control module bolts (1).
  6. Remove the glow plug control module (2).
  7. Remove the glow plug control module bracket bolts (3), if required.
  8. Remove the glow plug control module bracket (4), if required.
RENDER: 1.0x

NO RELATED

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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.