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HOMESERVICE MANUALSCHEVROLET2003TRAILBLAZER 4.2 S, 4WDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1079 (BATTERY, CHARGING SYSTEM AND STARTING SYSTEM)REPAIR INSTRUCTIONSBATTERY POSITIVE CABLE REPLACEMENT (LY7)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 2004 Pontiac Aztek and 2004 Buick Rendezvous. However, it is still accessible from the selected car via links, so may be relevant.

When replacing battery cables, be sure to use replacement cables that are the same type, gage and length.

  1. Remove the battery ground (negative) cable from the battery. Refer to Battery Negative Cable Disconnect/Connect Procedure (LA1)  or Battery Negative Cable Disconnect/Connect Procedure (LY7) .
    2. Fig 1: View Of Battery Positive Cable
    GM1395992Courtesy of GENERAL MOTORS CORP.
  2. Loosen the battery terminal nut.
  3. Remove the battery positive cable from the battery.
    4. Fig 2: Locating Battery Positive Cable Nut & Cable
    GM1236357Courtesy of GENERAL MOTORS CORP.
  4. Remove the battery positive cable nut and cable from the underhood electrical center.
    5. Fig 3: Identifying Battery Positive Cable Nut And Cable At The Generator
    GM1394044Courtesy of GENERAL MOTORS CORP.
  5. Remove the battery positive cable nut and cable from the generator.
  6. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  7. Remove the lower radiator baffle. Refer to Radiator Air Baffle Assemblies and Deflectors in Engine Cooling.
  8. Remove the battery cable conduit from the conduit retainers.
  9. Remove the starter motor BAT terminal nut from the starter motor.
  10. Remove the battery positive cable from the starter motor BAT terminal.
  11. Lower the vehicle.
  12. Remove the battery positive cable from the vehicle.
RENDER: 1.0x

NO RELATED

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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.