so are you sure that the engine is actually running hot? or does the gauge just say its hot?
Some 1984 pickup trucks and 1983-1984 Celica models, equipped with 22R-E engines, may experience a condition called "temperature gauge overshoot". After starting a cold engine the temperature gauge will indicate a higher than normal engine temperature for a short time just prior to the thermostat opening. After the thermostat opens, the temperature gauge will return to the normal range. A new double valve thermostat has been made available to reduce temperature gauge overshoot.
And calls for part number 90916-03070 which according to the TSB replaces 90916-03055.
it says RE but i had this same issue with my 22R, and it also said certain years but I know people with different years withthe same issue... and the RE wasn't offered in the 84 trucks, I have seen them in 84 and earleir but they weren't officially avaialble at that time.
