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TDoylecinci 10-21-2012 12:17 PM

Cooling fan
 
Adjusted valves on 1990 Camaro 305 and what I think is knock sensor got broken. It's located in right head between plugs #6 & 8. The fan didn't come on when temp got high and I took it to a friend that does some work on it. He said it's the temp sensor but I don't know. If a/c is switched on the fan comes on, so it worlks. Wondering if the sensor broken is part of problem w/fan not turning on with high temp. Please help diagnose....

malc 10-21-2012 12:39 PM

Itīs the cooling fan temp switch that is located between 6 & 8 plugs.
Knock sensor is low on the block above the pan rail.

TDoylecinci 10-21-2012 12:43 PM

cooling fan switch
 
Thanks for the info. I read where the knock sensor was in the block but didn't see it. The fan switch makes sense as the fan sisn't come on until a/c was switched on. Thanks for the info


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