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 )
Inspection
1. INSPECT WATER PUMP ASSY
(a) Visually check the drain hole for coolant leakage.
(b) Turn the pulley, and check that the water pump bearing
moves smoothly and noiselessly.
If the bearing mo ...
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