Engine Cooling System: Engine: Thermostat: Installation: 6.2L

Fig 1: Thermostat & Seal

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1. Position the thermostat (1) with the vent at the 12 o'clock position and the gasket seal (2) is fully seated.
   Fig 2: Upper Radiator Hose & Bolts

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2. Install the thermostat housing. Tighten the bolts (2) to the proper torque specification. Refer to SPECIFICATIONS .
3. Install the radiator hose (1) onto the thermostat housing.
4. Fill the cooling system. Refer to STANDARD PROCEDURE .
5. Start and warm the engine. Check for leaks. Refer to DIAGNOSIS AND TESTING .