Toyota Highlander Service Manual: Thermostat (3MZ-FE)

REPLACEMENT

HINT: The installation procedures are the removal procedures in reverse order. However, only installation procedures requiring additional information are included.

1. DRAIN ENGINE COOLANT (See page 16-26 )

2. REMOVE RADIATOR HOSE OUTLET

3. REMOVE WATER INLET PIPE

(a) Remove the bolt and inlet pipe.

4. REMOVE WATER INLET

(a) Remove the 3 bolts and water inlet.

5. REMOVE THERMOSTAT

6. 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 into the water inlet housing.

HINT: The jiggle valve may be set within 15 of either side of the prescribed position.

7. INSTALL WATER INLET Torque: 8.0 NVm (82 kgfVcm, 71 in.Vlbf)

8. INSTALL WATER INLET PIPE

(a) Install a new O-ring to the inlet pipe.

(b) Apply soapy water to the O-ring.

(c) Connect the inlet pipe to the water inlet.

(d) Install the bolt holding the inlet pipe to the cylinder head.

Torque: 20 NVm (204 kgfVcm, 15 ftVlbf)

9. ADD ENGINE COOLANT (See page 16-26 )

10. CHECK FOR ENGINE COOLANT LEAKS (See page 16-20 )