Question about 1994 Pontiac Firebird
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Posted on Jan 02, 2017
SOURCE: cooling fan not working
The fans only run when the engine reaches approxminatly 235 degrees F. on the guage that is near the end of scale just before guage show "HOT" I don't think you have a problem, allot of folks out there don't know about this.
Posted on Aug 22, 2008
SOURCE: Cooling fan
there are relays not just fuses for the cooling fan. look under the hood there should be a black junction box open it and you will see several little black cubes those are relays. if you have the owners manual they will show what each one is for. start the vehicle and let it get to operating temp 180-190 degrees your fans normally kick on at this point what i normally do is take the relay for the a/c clutch and swap it for the radiator cooling fan if the fans kick on you know it was the relay. if they don't kick on then you know that the temp sensor on the radiator is bad., but before you go replacing anything make sure that there are no loose or missing wires. that all mplug connections are tight and not coroded and that with the engine off that the fan blades spin freely. once checking everything and you still have an issue then the fans are bad and need to replace it.. please rate this thanks
Posted on Sep 04, 2008
if your blowing fuses constantly for one becaful as this can cause a fire and you have some thing grounding out badly.i would start to slowly follow wires and look for bad fuesable links and loose wires.broken,craked so on and so forth.
Posted on Mar 23, 2009
You have to refer to your owners manual or an after market service manual for fuse locations but that is not the issue. There is a sending unit screwed into the block with a temp sensor that closes the circuit on the ground side when the cooling system reaches a specified temperature. There is a fuse between the hot side and the fan for over current protection (see manual). A bad sending unit is most likely the culprit. Measure the resistance or continuity when the engine is hot from the sending unit body which is grounded to the block, and the output terminal or black wire running to the fan motor. It should be closed or read less than 0.5 Ohms. If it is open or very high resistance replace it. Good luck to you. I hope thishelps
Posted on Jul 26, 2009
Does the other one come on when you turn on the a/c? What is the problem? Overheats?
Posted on Mar 27, 2010
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