Question about 1987 Cadillac DeVille

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Lights on dash

I have a1997 cadillac deville. the ac compressor off light and the very low refrigerant light goes on on my dash.i had the air condion system checked and they said freon is fine and no leaks. now they want to charge me 150.00 to run an electrical test. they think its some kinda switch that is not kicking the clutch,or the fan on causing it to give a radiator type smell. does this sound correct and how can i find out what switch it is without paying 150.00 since i just lost my job and money is real tight thank you

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  • Scott Heller Mar 02, 2009

    where would i find this sensor

  • Scott Heller Mar 02, 2009

    where do i find the refrigerant level sensor if i have one

  • Scott Heller Mar 02, 2009

    where do i find the refrigerant level sensor if i have one

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  • 14 Answers

Find out if you have a refrigerant level sensor if it is bad it will give off a false reading and the car will think its lavel is too low and will shut off the ac system

Posted on Mar 02, 2009

  • onixfiero Mar 03, 2009

    CHECK ON THE SILVER CANNISTER THAT THE AC LINES RUN INTO THEY ARE USUALLY ON THIS CANNISTER BUT NOT ALWAYS.YOU CAN ALSO CHECK ON THE LINES THEMSELVES OR ON THE BACK OF THE AC COMPRESSOR.IF YOU DO NOT HAVE A REFRIGERANT LEVEL SENSOR CHECK THE HIGH AND LOW PRESSURE SWITCHES MOUNTED IN THE SAME LOCATIONS AS THEY CAN GIVE READINGS THAT THE AC SYSTEM CAN INTERPERATE INTO LOW REFRIGERANT SIGNALS.

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