Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

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HOMESERVICE MANUALSCHEVROLET2003TRAILBLAZER 4.2 S, 4WDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 724 (BATTERY)REPAIR INSTRUCTIONSGROUND STRAP 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.

In order to remove the engine ground strap the battery negative cable is removed from the engine. Some of the vehicle information may get discarded when the battery negative cable is removed. Refer to RADIO/AUDIO SYSTEM DESCRIPTION & OPERATION (CLASS 2 RADIO) for the information that may have to be reset. The battery negative cable does not require disconnection at the battery.
Raise the vehicle. Refer to LIFTING AND JACKING THE VEHICLE .
Remove the bolt retaining the battery negative cable and the ground strap to the engine.

Fig 1: Removing Bolt Retaining Battery Negative Cable & Ground Strap To Engine
Courtesy of GENERAL MOTORS CORP.
Remove the bolt retaining the ground strap to the frame.
Remove the ground strap.

Fig 2: Removing Ground Strap
Courtesy 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.