Tacoma PreRunner Dbl Cab 2WD V6-3.4L (5VZ-FE) (2001)
b. Check the valve opening temperature.
Valve opening temperature: 80 - 84°C (176 - 183°F)
If the valve opening temperature is not as specified, replace the thermostat.
c. Check the valve lift.
Valve lift: 8.5 mm (0.335 inch) or more at 95°C (203°F)
If the valve lift is not as specified, replace the thermostat.
d. Check that the valve is fully closed when the thermostat is at low temperatures (below 40°C (104°F)).
If not closed, replace the thermostat.
INSTALLATION
1. INSTALL THERMOSTAT
a. Place a new gasket to the thermostat.
b. Install the thermostat with the jiggle valve downward.
c. Install the water inlet with the 3 nuts.
Torque: 20 Nm (200 kgf-cm, 14 ft. lbs.)
2. CONNECT LOWER RADIATOR HOSE
3. FILL WITH ENGINE COOLANT
4. START ENGINE AND CHECK FOR LEAKS