Removal Procedure

2008 Chevrolet Chevy Express G2500, Van Cargo, 6.6 6SECTION Removal Procedure
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2012 GMC Yukon XL, 2012 GMC Yukon, 2012 Chevrolet Tahoe, 2012 Chevrolet Suburban, and 2012 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: View Of Under Hood Junction Block Cover
    GM1702793Courtesy of GENERAL MOTORS COMPANY
  1. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and ConnectionΒ .
  2. Remove the under hood junction block cover.
  3. Fig 2: View Of Junction Block & Retainers
    GM1702795Courtesy of GENERAL MOTORS COMPANY
  4. Lift the junction block retainers from the locked position (3) and rotate the retainers to the open position (1).
  5. Reposition the junction block.
  6. Fig 3: View Of Positive Battery Cable Connector & (UBEC)
    GM1702797Courtesy of GENERAL MOTORS COMPANY
  7. Remove the positive battery cable connector (1) from the underhood bussed electrical center (UBEC).
  8. Fig 4: View Of Mega Fuse Cover
    GM1702800Courtesy of GENERAL MOTORS COMPANY
  9. Remove the mega fuse cover.
  10. Fig 5: View Of Generator Battery Jumper Cable & Components
    GM1699546Courtesy of GENERAL MOTORS COMPANY
  11. Remove the generator battery jumper cable to mega fuse nut (3).
  12. Remove the generator battery jumper cable terminal (4) from the mega fuse stud.
  13. Fig 6: View Of Positive Battery Cable Channel, Clips & Studs
    GM1702801Courtesy of GENERAL MOTORS COMPANY
  14. Remove the positive battery cable channel from the studs on the plenum front panel.
  15. Remove the positive battery cable clips from the studs on the plenum front panel.
  16. Fig 7: View Of Positive Battery Cable
    GM1702803Courtesy of GENERAL MOTORS COMPANY
  17. Remove the positive battery cable terminal from the mega fuse stud.
  18. Remove the positive battery cable from the vehicle.
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:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.