Thermostat: Service and Repair

THERMOSTAT (1NZ-FXE)
REPLACEMENT
1. REMOVE RADIATOR SUPPORT OPENING COVER
2. REMOVE ENGINE UNDER COVER LH
3. REMOVE ENGINE UNDER COVER RH
4. DRAIN ENGINE COOLANT





5. REMOVE WATER INLET
a. Remove the 2 nuts and water inlet with radiator outlet hose.





6. REMOVE THERMOSTAT
a. Remove the thermostat.
b. Remove the gasket from the thermostat.
7. INSTALL THERMOSTAT





a. Install a new gasket to the thermostat.





b. Install the thermostat so the jiggle valve faces upward.

HINT: The jiggle valve may be set within 10° of either side as illustrated.

8. INSTALL WATER INLET
a. Install the water inlet with radiator outlet hose with the 2 nuts.
Torque: 9.0 Nm (92 kgf-cm, 80 inch lbs.)
9. ADD ENGINE COOLANT
10. CHECK FOR ENGINE COOLANT LEAKS
11. INSTALL ENGINE UNDER COVER RH
12. INSTALL ENGINE UNDER COVER LH
13. INSTALL RADIATOR SUPPORT OPENING COVER