Sienna AWD V6-3.3L (3MZ-FE) (2004)
Thermostat: Service and Repair
THERMOSTAT
REPLACEMENT
1. DRAIN COOLANT
2. REMOVE BATTERY
3. REMOVE AIR CLEANER CAP SUB-ASSY
4. REMOVE AIR CLEANER FILTER ELEMENT SUB-ASSY
5. REMOVE AIR CLEANER INLET NO.2
6. REMOVE AIR CLEANER CASE
7. REMOVE AIR CLEANER BRACKET
8. REMOVE AIR CLEANER INLET NO.1
9. REMOVE STARTER ASSY
10. DISCONNECT RADIATOR HOSE OUTLET
11. REMOVE WATER INLET
a. Disconnect the wire harness clamp.
b. Remove the bolts, the 3 nuts and the water inlet.
12. REMOVE THERMOSTAT
13. 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.
14. INSTALL WATER INLET
Torque:
Nut 8.0 Nm (82 kgf-cm, 71 inch lbs.)
Bolt 20 Nm (199 kgf-cm, 14 ft. lbs.)
15. INSTALL STARTER ASSY
16. INSTALL AIR CLEANER INLET NO.1
17. INSTALL AIR CLEANER BRACKET
18. INSTALL AIR CLEANER CASE
19. INSTALL AIR CLEANER INLET NO.2
20. INSTALL AIR CLEANER CAP SUB-ASSY
21. ADD COOLANT
22. CHECK FOR ENGINE COOLANT LEAKS