Sunfire L4-138 2.3L DOHC VIN D MFI (1995)
Thermostat: Service and Repair
Thermostat and Radiator Outlet
REMOVE OR DISCONNECT
1. Negative battery cable.
2. Drain and recover the coolant until level is below thermostat.
3. Coolant inlet housing bolt accessible through exhaust manifold.
4. Raise vehicle.
5. Radiator outlet pipe stud.
6. Second coolant inlet - housing bolt.
7. Coolant inlet housing.
8. Thermostat.
9. Clean mating surfaces.
INSTALL OR CONNECT
1. Thermostat.
2. Coolant inlet housing and gasket, then torque bolts to 14 Nm (10 ft lbs).
3. Coolant inlet housing bolt.
4. Lower vehicle.
5. Coolant inlet housing bolt through exhaust manifold.
6. Fill and pressure test cooling system, then inspect for leaks.
