Question about 1998 Buick Century

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94 buick centry dose not take refrigerant also ac clutch dose not engage but i can spin it by hand?????

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If your compressor shut down, it's probably due to lack of refrigerant. GM's have a safety feature built in to their compressors, if their is not enough refrigerant to power the compressor, it will shut down and require a reset. (disconnect neg battery cable for 20mins). Once the compressor has shut itself down, it won't accept more refrigerant until it has been reset.

Posted on Jun 30, 2009

  • Greg Margossian
    Greg Margossian Jul 02, 2009

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You need to have the refrigerant charge level checked, it sounds like it is low. You Need a set of AC pressure gauges to do this testing. If the system has a low charge the pressures will be very low in the low side testing port.

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The serpentine belt on my 1984 Buick Lesabre keeps breaking when turn on air conditioner or heater why?


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1 Answer

My 2002 Expedition air conditioner will sometimes blow hot air and others cold air


I would check the following possibilities:
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2. Low on refrigerant or refrigerant has moisture in it? If your ac blows cold initially after being off for a while, then heats up, and continues to regularly cycle back and forth between hot and cool air, then the system may be low on refrigerant or the refrigerant may have moisture in it that is freezing and restricting refrigerant flow. An a/c shop can check refrigerant level and even replace refrigerant if moisture is suspected.

Could be other issues, but I would start with these.

Good luck

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Bruce did you check the freon. if the pressure is not enough the ac clutch will not engage. If it is the freon you may want to use a leak detector from your local autoparts store before wasting freon.

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1 Answer

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To reset your AC compressor, you need to remove power for at least 15 minutes. After you reconnect, the compressor should turn on. If it does, immediately turn to high and try to add refrigerant. Best of luck.
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1 Answer

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