Monte Carlo V6-3.8L VIN K (1998)
Thermostat: Service and Repair
REMOVAL PROCEDURE
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Tools Required
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J38185 Hose Clamp Pliers
1. Disconnect the air cleaner and duct assembly. Refer to Air Filter Element/Air Cleaner Assembly in Powertrain Management.
2. Partially drain the engine coolant. Refer to Draining and Filling Cooling System.
3. Remove the fuel injector sight shield. Refer to Engine Cover Replacement See: Engine/Service and Repair.
4. Disconnect the radiator hose from the thermostat housing.
5. Remove bolts from the thermostat housing.
6. Remove the thermostat housing and gasket.
7. Remove the thermostat.
8. Clean the mating surfaces.
INSTALLATION PROCEDURE
NOTICE: When adding coolant, it is important that you use GM Goodwrench DEX-COOL (R) or HAVOLINE (R) DEX-COOL(R) coolant. If
Coolant other than DEX-COOL (R) or HAVOLINE (R) DEX-COOL (R) is added to the system the engine coolant will require change sooner-at 50
000 km (30,000 mi.) or 24 months.