Thermostat Removal - Toyota 3VZ–FE Troubleshooting Manual

EG–250
ENGINE TROUBLESHOOTING
THERMOSTAT

THERMOSTAT REMOVAL

1.
2.
– COOLING SYSTEM
HINT: Removal of the thermostat would have an adverse ef-
fect, causing a lowering of cooling efficiency. Do not remove
the thermostat, even if the engine tends to overheat.
DISCONNECT CABLE FROM NEGATIVE TERMINAL OF
BATTERY
CAUTION (w / Airbag): Work must be started after
approx. 30 seconds or longer from the time the ignition
switch is turned to the "LOCK" position and the negative
(–) terminal cable is disconnected from the battery.
DRAIN ENGINE COOLANT (See page EG–244)
EG09X–01