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Toyota Forums _ Toyota Supra Forum _ Radiator done! ^_^

Posted by: momosupra Jul 23 2001, 04:08 PM

Hi, all. To all of you who helped me on the radiator insturction, I finally finish replaced the radiator. nothing really to talk about except it is easy like you all said.. but.. the bad part is now i have another question to ask you guys.<br><br>After I replace the radiator... I went for a test run. .. i was running around the highway for about 5 mins.. and the temp. gauge went up.. ( almost to the Hi. spot. ) but then it went back down just 2 sec after that.. and it haven't go back up again.... so i thought it was a transition thing... but. this morning.. same thing happen.. after 5 to 10 mins running the car.. it did the same thing.. and it didn't happen again..... I do notice one thing.. every time the car get cool off for about 3 to 4 hr... and restart again, it does this weird thing after 5-10 mins of running the hard.. (doesn't matter if i run it hard or not... its still the same.) <br>I asked a shop, and he said it is probably the Temp. Meter. Or do you guys have any suggestion? Please advise. Thank you very much in advance.

Posted by: tmkreutzer Jul 24 2001, 09:19 PM

It's one of two things. The thermostat could be a little sticky and doesn't open until the car gets almost to the red. once it does the car cools normally and the temp comes back down.<br><br>The other thing could be the fan switch kicking on and cooling the car once it gets hot. This is pretty normal. <br><br>As long as it doesn't go up and stick in the red, no problem.

Posted by: whopperdad Jun 16 2008, 06:03 PM

To me it sounds as though you have air trapped in the system and it needs to be bled out. Also what the last guy said sticky t-stat. Hope this helps.