Thread: Cooling fans and A/C issue *need help

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  1. #1 Cooling fans and A/C issue *need help 
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    1998 Pontiac Grand Prix SE 3100

    Problem..A/C and cooling fans won't kick on.

    Corrective measures...

    Checked fuses..all good
    Changed all 3 cooling fan relays..no help.
    Direct connect to battery to check fans..they worked.
    Recharged the A/C..needed like 10 more PSI..no help.
    Changed coolant temp sensor..no help.
    Changed ambient air sensor..no help.
    Changed Air charge sensor..no help.(runs better after this though)

    Previous repairs..
    Water pump and belt replaced.
    Heater motor blower replaced.
    Blower motor resistor replaced. (vents now blow heated air and air from outside)

    Fans won't kick on nor will A/C at this point. I have been reading for hours. I read somewhere there is an inside air temp sensor, but I can't find it. I noticed a female connector by the battery with the same color wires as the ambient air temp sensor not plugged into anything. Looked for about an hour for the male connector but I can't find it.

    Any ideas or can someone send me a pic of where the connector next to the battery with a yellow and green wires go to?
    Last edited by WRIGHTDA; 05-04-2011 at 07:33 PM.
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