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 MANUALSCHEVROLET2008CHEVY EXPRESS G3500, VAN PASSENGER EXTENDEDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 191 (BATTERY, CHARGING SYSTEM AND STARTING SYSTEM)REPAIR INSTRUCTIONSBATTERY NEGATIVE CABLE REPLACEMENT (LY7)INSTALLATION PROCEDURE

2008 Chevrolet Chevy Express G3500, Van Passenger Extended

Installation Procedure

2008 Chevrolet Chevy Express G3500, Van Passenger ExtendedSECTION Installation Procedure

WARNING: This page is about a different car, the 2008 Cadillac STS. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Identifying Stud Securing Battery Negative Cable To Engine Block

Courtesy of GENERAL MOTORS CORP.

Install and position the negative battery cable.

NOTE: Refer to Fastener Notice .

Install the negative battery cable to engine block stud.
Tighten: Tighten the stud to 50 N.m (37 lb ft).

Fig 2: View Of Battery Area Mounts And Connectors

Courtesy of GENERAL MOTORS CORP.

Install the bolt (1) securing the negative battery cable to the side rail.
Tighten: Tighten the bolt to 36 N.m (27 lb ft).
Connect the body harness connector (3) to the negative battery cable.

Fig 3: Instrument Panel (I/P) Harness Electrical Connector

Courtesy of GENERAL MOTORS CORP.

Connect the I/P harness electrical connector (1) to the battery current sensor.
Connect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection .

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.