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HOMESERVICE MANUALSCHEVROLET2008CHEVY EXPRESS G3500, VAN PASSENGER EXTENDEDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 889 (BATTERY, CHARGING SYSTEM AND STARTING SYSTEM)REPAIR INSTRUCTIONSBATTERY POSITIVE CABLE 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 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 Positive Battery Cable
    GM1702803Courtesy of GENERAL MOTORS COMPANY
  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 COMPANY
  3. Install the positive battery cable clips to the studs on the plenum front panel.
    4. Fig 3: View Of Generator Battery Jumper Cable & Components
    GM1699546Courtesy of GENERAL MOTORS COMPANY
  4. Install the generator battery jumper cable terminal (4) to the mega fuse stud.
    5. CAUTION:

    Refer to Fastener Caution .

  5. Install the generator battery jumper cable to mega fuse nut (3).

    Tighten 

    Tighten the nuts to 9 N.m (80 lb in).

    6. Fig 4: View Of Mega Fuse Cover
    GM1702800Courtesy of GENERAL MOTORS COMPANY
  6. Install the mega fuse cover.
    7. Fig 5: View Of Positive Battery Cable Connector & (UBEC)
    GM1702797Courtesy of GENERAL MOTORS COMPANY
  7. Install the positive battery cable connector (1) to the UBEC.
    8. Fig 6: View Of Junction Block & Retainers
    GM1702795Courtesy of GENERAL MOTORS COMPANY
  8. Ensure the junction block retainers are in the open position (1).
  9. 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).
    10. Fig 7: View Of Under Hood Junction Block Cover
    GM1702793Courtesy of GENERAL MOTORS COMPANY
  10. Install the under hood junction block cover.
  11. Connect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection .
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.