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 MANUALSCHEVROLET2006CHEVY EXPRESS G2500, VAN CARGO, 6.6 2REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 862 (ENGINE COOLING SYSTEM)REPAIR INSTRUCTIONSTHERMOSTAT REPLACEMENT (2.2L (L61))INSTALLATION PROCEDURE

2006 Chevrolet Chevy Express G2500, Van Cargo, 6.6 2

Installation Procedure

2006 Chevrolet Chevy Express G2500, Van Cargo, 6.6 2SECTION Installation Procedure

WARNING: This page is about a different car, the 2007 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Exploded View Of Thermostat (2.2L - L61)

Courtesy of GENERAL MOTORS CORP.

Install the thermostat cartridge into the thermostat housing while aligning the cartridge tangs up with the thermostat housing bolt holes. This will assure the inner sleeve can be completely installed.

Fig 2: Proper Alignment Of Inner Sleeve Notch In Thermostat Housing (L61)

Courtesy of GENERAL MOTORS CORP.

Align and insert the inner sleeve notch into the thermostat housing. If the inner sleeve notch is not properly positioned, the sleeve will not completely seat into the housing.

Fig 3: Applying Silicone Gel To Water Feed Pipe Seals (L61)

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.