chevrolet Workshop Repair Guides

Chevrolet Workshop Service and Repair Manuals

Water Pump > < Thermostat, Engine Cooling|Specifications
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Thermostat: Service and Repair

Fig. 15 Thermostat & Housing Assembly

    Refer to Fig. 15 when performing the following procedure.

1.

Disconnect battery ground cable.

2.

With engine cool, drain engine coolant below thermostat level. Never open cooling system with engine hot.

3.

Disconnect radiator hose from thermostat housing.

4.

Remove thermostat housing retaining bolts, then the housing, gasket and thermostat.

5.

Reverse procedure to install, noting the following:
a. Ensure thermostat gasket area is thoroughly clean.
b. Install thermostat with new gasket.
c. Apply a suitable sealer to thermostat housing retaining bolts. Install and torque bolts to 18 ft. lbs.
d. Refill and bleed cooling system as necessary.

Water Pump > < Thermostat, Engine Cooling|Specifications