Irish350

Okay, so right now, im in the middle of a head/cam rebuild, but just before i started, my car had been having trouble with overheating issues.. the fans both worked, and the relays and fuses were all good, but they wouldnt kick on.. (youd be amazed how quickly a car overheats without fans in AZ). i found a wire (or so i thought) that had been burnt through and was arcing on my headers, but after following it back, i found that it was just my throttle cable.. so idk what the problem is. i havent found any other burnt wires, and all the grounds are good.

anyone have ideas?

i may be missing some info, if i am, sorry, just ask for any clarification and ill respond asap..

11secgen

does it only overheat when sitting still/low speeds?

Irish350

yep.. cause its hot here, and the fans dont kick on.. the only time it DOESNT overheat is on the freeway, when its getting some airflow

Severous01

coolant temp sensor...20 bucks at autozone. the one in the water pump...replace it and check the wiring to it.

ss7

I have the same problem fans dont come on when temperature rises and sometimes it reaches the red zone. But when I jump the terminals on the scanner port they work fine. Is it safe to have them jumped while driving? And is this the sensor we have to be looking for? Thank you.

Irish350

ah, i guess ill replace that one then.. i already replaced the temp sensor on the drivers side of the block.. i didnt realize there was one there too..

Severous01

that's the sending unit to the driver's dummy light...or guage.

the actual temp sensor for the PCM is in the pump. and it's 20 bucks at any parts store

jumping the relay is fine. as long as you remove it when you turn off the car. you'll run the bat dead if you leave it.