Question about 1994 Pontiac Grand Prix
I cant get the two cooling fans to run. The fuses checked good. The one motor winding checked good. Ionly get 8to 9 volts at the connector
The cooling fans are run by a relay it's located in the junction box. check this. there is also a thermoatic sensor located near the fans next to radiator. the fans should free spin when the engine is off this is a good indiacator that it's not the fan themselves. if the relay checks out(run engine and switch the fan relay with the a/c clutch relay when the engine reaches 180 degrees you will feel the upper radiator hose get hot the fans will turn on a short time later iof they don't it's the temp sensor near the radiator if they do it's a bad relay...please rate this thanks
Posted on Sep 28, 2008
Turn on ac fan should come on if so replace coolant tempature sensor. Once coolant reaches operating tempature PCM uses resistance siginal from senor for coolant tempater and then sends voltage to fan relay
Posted on Nov 26, 2013
If the you checked the wiring at the fan and it is 12v and the fan motor is ok it will work unless you have a bad ground and you will proberly find that one motor will kick in first then at a certain temp the other will kick in they both don,t come on together unless the temp is at a certain degrees normally when the fans don,t work its down to fuses or the temp switch which operates the fans which can be tested by by-passing the switch or which is more likely the fans relay as the points burn out yates210456
Posted on Sep 28, 2008
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Posted on Jan 02, 2017
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