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 MANUALSCHEVROLET2001CHEVY EXPRESS G3500, VAN PASSENGER EXTENDED, 6.5 FREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 803 (ENGINE COOLING)REPAIR INSTRUCTIONSWATER INLET REPLACEMENTINSTALLATION PROCEDURE

2001 Chevrolet Chevy Express G3500, Van Passenger Extended, 6.5 F

Installation Procedure

2001 Chevrolet Chevy Express G3500, Van Passenger Extended, 6.5 FSECTION Installation Procedure

WARNING: This page is about a different car, the 2003 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Coolant Intake Housing & O-Ring Seal

Courtesy of GENERAL MOTORS CORP.

Install the O-ring seal to housing assembly.
Install the coolant intake housing and O-ring seal to the engine.

NOTE: Refer to FASTENER NOTICE in Cautions and Notices.

Install the coolant intake housing bolts and tighten.
Tighten: Tighten the coolant intake housing bolts to 20 N.m (15 lb ft).

Fig 2: Installing Lower Radiator Hose To Coolant Housing

Courtesy of GENERAL MOTORS CORP.

Install the lower radiator hose to coolant housing.
Install the coolant pump hoses and clamps to the intake coolant housing.
Install the battery box/UHFB assembly. Refer to Battery Box Replacement .
Connect the negative battery cable.
Tighten: Tighten the battery terminal bolt to 17 N.m (13 lb ft).
Fill the cooling system. Refer to Draining and Filling Cooling System .

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.