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HOMESERVICE MANUALSCHEVROLET2003TRAILBLAZER 4.2 S, 4WDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1759 (BATTERY, CHARGING SYSTEM AND STARTING SYSTEM)REPAIR INSTRUCTIONSBATTERY NEGATIVE CABLE REPLACEMENT (2.4L (LAT))REMOVAL PROCEDURE
2003 Chevrolet TrailBlazer 4.2 S, 4WD

Removal Procedure

2003 Chevrolet TrailBlazer 4.2 S, 4WDSECTION Removal Procedure
WARNING: This page is about a different car, the 2007 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: View Of Negative Battery Cable Connection To Body
    GM1813432Courtesy of GENERAL MOTORS CORP.
  1. Remove the battery tray. Refer to Battery Tray Replacement (2.2L (L61))  or Battery Tray Replacement (2.4L (LAT))  or Battery Tray Replacement (3.5L (L66)) .
  2. Remove the negative battery cable nut (2) from the left front wheelhouse panel (3) stud.
  3. Remove the negative battery cable (1) from the stud.
    4. Fig 2: Locating Cable Retainers
    GM1813434Courtesy of GENERAL MOTORS CORP.
  4. Remove the negative battery cable (2) from the positive battery cable retainers (1).
  5. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
    6. Fig 3: Engine Wiring Harness Ground Lead Nut And Stud
    GM1813437Courtesy of GENERAL MOTORS CORP.
  6. Remove the engine wiring harness ground lead nut (1) from the transaxle stud.
  7. Remove the negative battery cable lead (2) from the transaxle stud.
  8. Lower the vehicle.
    9. IMPORTANT: Note the routing of the negative battery cable prior to removing.
  9. Remove the negative battery cable.
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.