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1994 Pontiac Firebird Question: a/c stops cooling after a minute or two minute

 

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mvxxx, Portland, OR, April 20, 2011, 03:51
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i had a rydler pully broken that disconcted some wires under the hood and after that happend the a/c starts cooling and then stops cooling after a minute or two minute.
maby there are wires of the thermostat there that i did not find where are they positioned

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  • Answer #1

    raiderron April 20, 2011, 04:04
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     Master

    Likely have some damage where the wires plug in at the compressor, double check there first, there is likely wires at a back pressure switch at back of compressor but idler pulley is at the front.

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    mvxxx, April 20, 2011, 04:10
     Rookie

    I checked the wires plug in at the compressor they look fine don't forget the a/c starts cooling for a minute but stops cooling and only the fan is working some one told me that it is the thermostat.
    but isw there thermostat wiring under the hood

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    Visitor, April 20, 2011, 04:42

    I believe they mean the low pressure switch at receiver drier but that is not close to the pulley, maybe the high pressure switch that can be on a line close to the front.

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    mvxxx, April 20, 2011, 04:54
     Rookie

    CAN YOUPLEASE EXPLAIN WHAT IS low pressure switch at receiver drier AND high pressure switch AND WHERE IT'S POSITIONED.

    BY THE WAY THE A/C COMPRESSOR STOPS SPINNING AND THEN THE A/C STOPS COOLING

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    Visitor, April 20, 2011, 06:21

    You need to take to qualified shop for inspection. I have told you all I know without being there. The low pressure switch is to protect compressor when low on refrigerant and so then would not carry lubricant in system to lube compressor and high pressure switch protects against too high pressures that can blow system up. Either can cause intermittent probs. Takes specialized equipment to diagnose properly and to empty system if needed and recharge. Take to a shop for inspection. I live in Junction City, Or. so I know you can't be using the a/c very much if at all anyways.

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    mvxxx, April 20, 2011, 08:33
     Rookie

    i did take it to a qualified inspection but in israel the firebird are rare and no one glad to work on them.
    the gas was checked and all was good(pressure and all)
    but he told me that he thinks it's the thermostat that kicks out the clutch of the compressor to prevent freezing but he did not know were to find the thermostat or his wires under the hood

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