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 (2.4L (LAT))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: Identifying Thermostat Housing Cover Bolts & Cover

Courtesy of GENERAL MOTORS CORP.

Install a NEW thermostat cover O-ring seal.
Install the thermostat.

NOTE: Refer to Fastener Notice .

Install the thermostat cover bolts.
Tighten: Tighten the bolts to 10 N.m (89 lb in).

Fig 2: Radiator Outlet Hose

Courtesy of GENERAL MOTORS CORP.

Install the battery tray. Refer to Battery Tray Replacement (2.2L (L61)) or Battery Tray Replacement (2.4L (LAT)) or Battery Tray Replacement (3.5L (L66)) .
Install the radiator outlet hose to the thermostat cover.
Position the radiator outlet hose clamp at the thermostat cover.
Fill the cooling system. Refer to Draining and Filling Cooling System (Static Fill) or Draining and Filling Cooling System (GE 47716 Fill) .

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.