chevrolet Workshop Repair Guides

Chevrolet Workshop Service and Repair Manuals

Thermostat Housing, Engine Cooling|Service and Repair|Page 3703 > < Thermostat, Engine Cooling|Specifications|Page 3699
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Thermostat Housing: Service and Repair

Thermostat Housing Replacement (RPO LE5)

Removal Procedure

1. Remove the intake manifold cover. 
2. Drain the cooling system. 

3. Important: A drain has been provided at the bottom of the water pump for engine block coolant drainage.

Drain the coolant from the engine block at the water pump drain. After the coolant has drained, tighten the drain bolt.

4. Lower the vehicle.

5. If equipped with a automatic transaxle, perform the following steps, disconnect the engine coolant temperature (ECT) sensor electrical connector

(3).

6. Remove the heated oxygen sensor (HO2S) electrical connector clip from the thermostat housing.

Thermostat Housing, Engine Cooling|Service and Repair|Page 3703 > < Thermostat, Engine Cooling|Specifications|Page 3699