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HOMESERVICE MANUALSCHEVROLET2008CHEVY EXPRESS G2500, VAN CARGO, 6.6 6REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1524 (HYBRID ENGINE ELECTRICAL SYSTEM)REPAIR INSTRUCTIONSBATTERY NEGATIVE CABLE REPLACEMENTREMOVAL PROCEDURE
2008 Chevrolet Chevy Express G2500, Van Cargo, 6.6 6

Removal Procedure

2008 Chevrolet Chevy Express G2500, Van Cargo, 6.6 6SECTION Removal Procedure
WARNING: This page is about a different car, the 2008 GMC Yukon and 2008 Chevrolet Tahoe. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION: Refer to Battery Disconnect Caution .
    Fig 1: Locating Battery Current Sensor & Engine Wiring Harness Electrical Connectors
    GM1968344Courtesy of GENERAL MOTORS CORP.
  1. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection .
  2. Disconnect the engine wiring harness electrical connector (1) from the battery current sensor (2).
    3. Fig 2: View Of Negative Battery Cable Clip
    GM1968346Courtesy of GENERAL MOTORS CORP.
  3. Remove the negative battery cable clip (1) from the auxiliary bussed electrical center (BEC).
    4. Fig 3: View Of Negative Battery Cable, Ground Terminal Bolt & Ground
    GM1968348Courtesy of GENERAL MOTORS CORP.
  4. Remove the negative battery cable ground terminal bolt (1) from the left side engine block boss.
  5. Remove the negative battery cable (3) and the engine wiring harness ground (2) leads from the engine block boss.
    6. Fig 4: View Of Negative Battery Cable Lead, Ground Lead & Bolt
    GM1968351Courtesy of GENERAL MOTORS CORP.
  6. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle .
  7. Remove the engine wiring harness ground lead bolt (1) from the frame.
  8. Remove the engine wiring harness ground lead (2) and the negative battery cable lead (3) from the frame.
  9. Lower the vehicle.
    10. Fig 5: View Of Negative Battery Cable Assembly
    GM1968354Courtesy of GENERAL MOTORS CORP.
  10. Remove the negative battery cable assembly (1) from under the positive battery cable and 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:

  • • 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.