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Home >> Hummer >> 2010 >> H3 V8-5.3L >> Repair and Diagnosis >> Engine, Cooling and Exhaust >> Cooling System >> Thermostat Housing >> Service and Repair
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Thermostat Housing: Service and Repair




Engine Coolant Thermostat Housing Replacement (LH8)

Removal Procedure




1. Drain the cooling system. Refer to Cooling System Draining and Filling (Static Fill) (Service and Repair)Cooling System Draining and Filling (Vac-N-Fill) (Service and Repair).
2. Remove the air cleaner. Refer to Air Cleaner Assembly Replacement (Service and Repair).
3. Reposition the radiator outlet hose clamp (1) at the water pump inlet.
4. Remove the radiator outlet hose (2) from the water pump inlet.




5. Remove the water pump inlet bolts.
6. Remove the water pump inlet from the water pump.
7. Remove and discard the water pump inlet seal.

Installation Procedure




1. Install a NEW water pump inlet seal to the water pump inlet.
2. Position the water pump inlet to the water pump.

Caution: Refer to Fastener Caution (Fastener Caution).

3. Install the water pump inlet bolts.

Tighten the bolts to 15 Nm (11 lb ft).




4. Install the radiator outlet hose (2) to the water pump inlet.
5. Position the radiator outlet hose clamp (1) at the water pump inlet.
6. Install the air cleaner. Refer to Air Cleaner Assembly Replacement (Service and Repair).
7. Fill the cooling system. Refer to Cooling System Draining and Filling (Static Fill) (Service and Repair)Cooling System Draining and Filling (Vac-N-Fill) (Service and Repair).

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