Installation Procedure

2008 Chevrolet Chevy Express G2500, Van Cargo, 6.6 6SECTION Installation Procedure
WARNING: This page is about a different car, the 2009 GMC Sierra, 2009 Chevrolet Silverado, and 2009 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: View Of Positive Battery Cable
    GM1702803Courtesy of GENERAL MOTORS CORP.
  1. Install the positive battery cable to the vehicle.
  2. Install the positive battery cable terminal to the mega fuse stud.
  3. Fig 2: View Of Positive Battery Cable Channel, Clips & Studs
    GM1702801Courtesy of GENERAL MOTORS CORP.
  4. Install the positive battery cable channel at the plenum front panel.
  5. Install the positive battery cable clips to the studs on the plenum front panel.
  6. Fig 3: View Of Starter Solenoid Cable & Nut
    GM1877262Courtesy of GENERAL MOTORS CORP.
  7. Install the starter solenoid cable (1) terminal to the mega fuse stud.
  8. CAUTION: Refer to Fastener Caution .
  9. Install the starter solenoid cable nut (2) to the mega fuse and tighten to 9 N.m (80 lb in).
  10. Fig 4: View Of Mega Fuse Cover
    GM1702800Courtesy of GENERAL MOTORS CORP.
  11. Install the mega fuse cover.
  12. Fig 5: View Of Positive Battery Cable Connector & (UBEC)
    GM1702797Courtesy of GENERAL MOTORS CORP.
  13. Install the positive battery cable connector (1) to the UBEC.
  14. Fig 6: View Of Junction Block & Retainers
    GM1702795Courtesy of GENERAL MOTORS CORP.
  15. Ensure the junction block retainers are in the open position (1).
  16. Position and align the junction block to the 4 bracket pivots (2), once the pivots are engaged, push the retainer down into the locked position (3).
  17. Fig 7: View Of Under Hood Junction Block Cover
    GM1702793Courtesy of GENERAL MOTORS CORP.
  18. Install the under hood junction block cover.
  19. Connect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection (With Single Battery)Β , Battery Negative Cable Disconnection and Connection (With Auxiliary Battery)Β  or Battery Negative Cable Disconnection and Connection (With Dual Batteries)Β .
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.