Topic: water temp problem

[Mytattootears]

hi guys just wondering what i should do, recently i rebuild my 22re and replaced the thermostate and other thing, now when i start it upa and start driving the temp goes up like its about to over heat, freaks me and  then drops back down to normal with out me pulling over and stoping then car. This all happens only on a cold start, neve any more once the car has been driving  for mor then 5mins. Does any one know what that might be?,  im going to replace the temp cooling sensor and fully that will fix the  problem.

[OOPS]

Read this about your problem.

http://www.4crawler.com/4x4/CheapTricks/index.shtml#Thermostat


TSB: 029032787 22R-E Engine Temperature Overshoot

It says:

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.

[Fiercefirstgen559]

my 22re does the same thing. even on an aftermarket temp gauge. goes up to about 195 on the first cycle then drops to 160-170 from there. scared me the first time i noticed it but soon realized it was just toyota trickery.

[Mytattootears [OP]]

Yeah it freaks me out everytime, right now since i use my 4runner for work i need to get this fixed, Thanks alot guys hopefully ill get this fixed on sunday