Thermostat: Service and Repair

REMOVAL PROCEDURE

NOTICE: When adding coolant, use DEX-COOL (R) coolant. If silicated coolant is added to the system, premature engine, heater core or radiator corrosion may result. In addition, the engine coolant will require change sooner-at 50,000 km (30,000 mi) or 24 months.

CAUTION: Refer to Battery Disconnect Caution in Cautions and Notices.

1. Disconnect the negative battery cable.
2. Drain the coolant to level below the thermostat. Recover the coolant. Refer to Draining and Filling Cooling System.





3. Remove the radiator coolant outlet pipe attaching bolts.





4. Remove the coolant outlet.





5. Remove the thermostat.
6. Clean the mating surfaces of the radiator outlet and the radiator outlet pipe.

INSTALLATION PROCEDURE





1. Install the thermostat.





2. Install the coolant outlet.

NOTICE: Refer to Fastener Notice in Cautions and Notices.

3. Install the coolant outlet attaching bolts.

Tighten
Tighten the coolant outlet bolts to 14 N.m (124 lb in).





4. Refill the engine coolant. Refer to Draining and Filling Cooling System.
5. Connect the negative battery cable.
6. Inspect for leaks.