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HOMESERVICE MANUALSCHEVROLET2003TRAILBLAZER 4.2 S, 4WDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1570 (BATTERY)REPAIR INSTRUCTIONSBATTERY POSITIVE CABLE REPLACEMENT (4.3L ENGINE)INSTALLATION PROCEDURE
2003 Chevrolet TrailBlazer 4.2 S, 4WD

Installation Procedure

2003 Chevrolet TrailBlazer 4.2 S, 4WDSECTION Installation Procedure
WARNING: This page is about a different car, the 2003 GMC Sierra, 2003 GMC Cab & Chassis Sierra, 2003 Chevrolet Silverado, and 2003 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
  1. Install the positive battery cable.
  2. Install the positive cable to the clip (7) on the oil pan.
  3. Install the positive cable (1) to the starter.
    NOTE: Refer to FASTENER NOTICE .
  4. Install the starter lead nut (9).

    Tighten 

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

    Fig 1: Install Starter Lead Nut, Positive Cable & Clip
    G02109385Courtesy of GENERAL MOTORS CORP.
  5. Install the positive cable to the channel.
  6. Install the battery cable channel bolts (1).

    Tighten 

    Tighten the bolts to 12 N.m (106 lb in).

  7. Install the negative cable to the battery channel.
  8. Lower the vehicle.
    Fig 2: Install Battery Cable Channel Bolts
    G02109386Courtesy of GENERAL MOTORS CORP.
  9. Install the battery cable bracket and bolt to the power steering pump.

    Tighten 

    Tighten the bolt to 25 N.m (18 lb ft).

    Fig 3: Install Battery Cable Bracket & Bolt
    G02109387Courtesy of GENERAL MOTORS CORP.
  10. Install the positive cable (1) to the junction block.
  11. Snap the junction block cover.
    Fig 4: Install Positive Cable
    G02109388Courtesy of GENERAL MOTORS CORP.
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.