4 Runner 4WD V6-180.5 2959cc 3.0L SOHC (3VZ-E) (1989)
Thermostat: Service and Repair
THERMOSTAT REMOVAL
1. DRAIN ENGINE COOLANT
2. DISCONNECT RADIATOR OUTLET HOSE
3. REMOVE THERMOSTAT
(a) Remove the 3 nuts. water inlet and thermostat with gasket from the water pump.
(b) Remove the gasket from the thermostat.
THERMOSTAT INSTALLATION
1. INSTALL THERMOSTAT
(a) Place a new gasket to the thermostat.
(b) Install the thermostat with the jiggle valve upward.
2. INSTALL WATER INLET
Install the water inlet with the 3 nuts. Torque: 20 N.m (200 kgf.cm, 14 ft.Ibf)
3. CONNECT RADIATOR OUTLET HOSE
4. FILL WITH ENGINE COOLANT
5. START ENGINE AND CHECK FOR LEAKS