Home Auto Repair 2003 Toyota Highlander Thermostat: Service and Repair REPLACEMENT

2003 Toyota Highlander Thermostat: Service and Repair REPLACEMENT

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Download 1. DRAIN COOLANT 2. REMOVE BATTERY 3. REMOVE AIR CLEANER ASSY a. Disconnect the MAF meter connector and wire clamp. b. Disconnect the VSV connector for canister closed valve (CCV) and air hose. c. Disconnect the 3 vacuum hoses. d. Loosen the hose clamp. e. Remove the air cleaner cap. f. Remove the air filter. g. Remove the 3 bolts and air cleaner case. 4. SEPARATE RADIATOR HOSE OUTLET 5. REMOVE WATER INLET PIPE a. Remove the bolt and water inlet pipe. 6. REMOVE WATER INLET a. Remove the 3 bolts and water inlet. 7. REMOVE THERMOSTAT 8. INSTALL THERMOSTAT a. Install a new gasket to the thermostat. b. Align the thermostat jiggle valve with the upper stud bolt, and insert the thermostat in the water inlet housing. HINT: The jiggle valve may be set within 15° of either side of the prescribed position.