Thread: Overheating at slow speeds and idle.

samething happend to mine and i had a coolant leak

I'm using prestone yellow, i tested again today and i know the fans arent turning on, (forgot to mention that), but there's absolutely no leaks, anywhere. someone had posted on another thread that when he unplugged the coolant temp sensor that the fans turned on and stayed on until he turned the car off, thought i would give this a shot, and sure enough, the fans kicked on at high speed, cooled the motor like it was supposed to but, when i plugged it back in the fans shut off again and still dont turn on at the correct temp. the only thing i could think of is that i have something going wrong the PCM maybe? I also replaced the relays and they all check out fine as well as every fuse that could have anything to do with it. Thanks for the attention. =D