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 G2500, VAN PASSENGER EXTENDED, 5.0 MREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 342 (ENGINE COOLING SYSTEM)REPAIR INSTRUCTIONSCOOLANT HEATER REPLACEMENT (3.8L)INSTALLATION PROCEDURE

2001 Chevrolet Chevy Express G2500, Van Passenger Extended, 5.0 M

Installation Procedure

2001 Chevrolet Chevy Express G2500, Van Passenger Extended, 5.0 MSECTION Installation Procedure

WARNING: This page is about a different car, the 2002 Buick Regal and 2002 Buick Century. However, it is still accessible from the selected car via links, so may be relevant.

Apply GM P/N 12346004 (Canadian P/N 10953480) or equivalent to the following:
- Engine block heater seal
- Cleaned surface of the engine block heater hole
Install the coolant heater by pushing tight to the block.

Fig 1: Coolant Heater
Courtesy of GENERAL MOTORS CORP.
Position the engine coolant heater element at the 9 o'clock position (2). Final installed position between 10 o'clock (1) and 8 o'clock (3) is acceptable.
Tighten the coolant heater bolt until both locking wings draw tight against the inner wall of the engine block.
Tighten:

Tighten the coolant heater bolt to 2 N.m (17 in lbs)
Install the coolant heater cord to the coolant heater.
Fill the cooling system. Refer to Draining and Filling Cooling System

Fig 2: Position The Engine Coolant Heater Element
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.