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 410 (BATTERY, CHARGING SYSTEM AND STARTING SYSTEM)REPAIR INSTRUCTIONSBATTERY NEGATIVE CABLE REPLACEMENT (LY7, LLT WITH TOP POST)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 2009 Cadillac STS. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Identifying Bolt Securing Negative Battery Cable To The Engine Block.

Courtesy of GENERAL MOTORS CORP.

Position the negative battery cable.

CAUTION: Refer to Fastener Caution .

Install the bolt (2) securing the negative battery cable (1) to the engine block and tighten to 50 N.m (37 lb ft).

Fig 2: Identifying Negative Battery Cable At Shock Tower

Courtesy of GENERAL MOTORS CORP.

Connect the cable retaining clip (4) from the stud (3) on the shock tower.
Install the bolt (1) securing the negative battery cable (2) to the shock tower and tighten to 10 N.m (89 lb in).

Fig 3: Identifying I/P Harness Electrical Connector At Battery Current Sensor

Courtesy of GENERAL MOTORS CORP.

Connect the I/P harness electrical connector (1) to the battery current sensor (2).
Connect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection (LHD With Top Post) .

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.