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HOMESERVICE MANUALSCHEVROLET2003TRAILBLAZER 4.2 S, 4WDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 724 (BATTERY)REPAIR INSTRUCTIONSBATTERY POSITIVE CABLE REPLACEMENTREMOVAL 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 2002 GMC Savana Special, 2002 GMC Savana Camper Special, 2002 GMC Savana, and 2002 Chevrolet Chevy Express. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove the bolt retaining the coolant recovery reservoir or surge tank.
  2. Move the coolant recovery reservoir or the surge tank aside.
    WARNING: Before servicing any electrical component, the ignition key must be in the OFF or LOCK position and all electrical loads must be OFF, unless instructed otherwise in these procedures. If a tool or equipment could easily come in contact with a live exposed electrical terminal, also disconnect the negative battery cable. Failure to follow these precautions may cause personal injury and/or damage to the vehicle or its components.
  3. Disconnect the battery negative cable from the battery. Refer to Battery Negative Cable Disconnect/Connect Procedure .
    Fig 1: Removing Bolt Retaining Coolant Recovery Reservoir Or Surge Tank
    G01699715Courtesy of GENERAL MOTORS CORP.
  4. Disconnect the battery positive cable from the battery.
  5. If equipped with the 6.5L engine, disconnect the positive lead to the junction block.
    Fig 2: Disconnecting Battery Positive Cable From Battery
    G01699716Courtesy of GENERAL MOTORS CORP.
  6. Disconnect the positive lead to the starter solenoid.
    Fig 3: Disconnecting Positive Lead To Starter Solenoid
    G01699717Courtesy of GENERAL MOTORS CORP.
  7. Disconnect the positive lead to the generator.
  8. Remove the cable from the vehicle. Note the location of the retaining clips.
    Fig 4: Disconnecting Positive Lead To Generator & Removing Cable
    G01699718Courtesy of GENERAL MOTORS CORP.
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.