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HOMESERVICE MANUALSCHEVROLET2006CHEVY EXPRESS G2500, VAN CARGO, 6.6 2REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 678 (ENGINE CONTROLS - 4.3L - INTRODUCTION (2 OF 2))REPAIR INSTRUCTIONSIGNITION COIL(S) REPLACEMENTINSTALLATION 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 2006 GMC Sierra and 2006 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
  1. Install the brackets to either side of the ignition coil.
    NOTE: Refer to FASTENER NOTICE in Cautions and Notices.
  2. Install the ignition coil bolts/nuts.

    Tighten:  Tighten the bolts/nuts to 3.5 N.m (31 lb in).

  3. Place the ignition coil and bracket into position.
    Fig 1: Installing Ignition Coil & Bracket
    GM31466Courtesy of GENERAL MOTORS CORP.
  4. Install the ignition coil bracket studs.

    Tighten:  Tighten the studs to 11 N.m (97 lb in).

  5. Install the accelerator cable bracket.
    Fig 2: View Of Accelerator Cable Bracket
    GM398027Courtesy of GENERAL MOTORS CORP.
  6. Install the accelerator cable bracket nuts and stud.

    Tighten:  Tighten the nuts/stud to 12 N.m (106 lb in).

  7. Position the bracket and cables.
  8. Install the accelerator control cable bracket with cables attached, to the throttle body.
    Fig 3: View Of Accelerator Control Cable Bracket
    GM398030Courtesy of GENERAL MOTORS CORP.
  9. Install the accelerator control cable bracket nuts.

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

  10. Install the accelerator cable to the engine bracket.
  11. Install the cruise control cable to the engine bracket.
  12. Install the cruise control cable to the throttle lever.
  13. Install the accelerator cable slug to the throttle lever.
  14. Connect the following electrical connectors:
    Fig 4: Ignition Coil, Ignition Coil Driver, Ground Nut/Cable & Generator Electrical Connectors
    GM782177Courtesy of GENERAL MOTORS CORP.
    • Ignition coil (1)
    • Ignition coil driver (2)
    15. IMPORTANT: The coil wire nipple must be positioned such that it is between 35 and 60 degrees aft of perpendicular as referenced from the engine centerline on the outboard side of the coil.
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.