Question about 1999 Buick Regal
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Posted on Jan 02, 2017
to prevent damage to the air conditioning system there is a "low pressure switch" located on the condenser near the low pressure hose (large one) .. if the refrigerrant (R134A) gets too low then the clutch will be blocked from activating by that switch .. you can have your system tested and recharged or you can do that yourself .. the R134A is available at auto parts stores .. some come with a gague that is required for proper charge .. if you dont already have a gage then yoiu will need that one ... recharge kits often come with instructions .. other less likely but possible problems could be a fuse or bad AC clutch relay. sometimes damaged wiring or bad clutch will be the problem but much more likely just low fluid ..
Posted on Jun 24, 2010
Does the system have a leak? If it does, then the computer might have set a low freon code that usually does not turn on the check engine light by itself. If this occurs, the code will have to be erased before the compressor will run. The computer does this in order to protect the compressor so that it cannot run without enough freon in the system. Once you correct the amount of freon in the system (if it needs it), reset the system and see if the compressor will run. Some parts stores have the ability to erase codes and will usually do it for free. I hope this solves your problem. It's definitely not good to have AC problems this time of year. Thanks for trying Fixya.com.
Posted on Jun 29, 2011
ABSOLUTELY!!! And if you are trying to run the compressor WITHOUT freon, it is a very good way to destroy a new compressor!
Posted on Aug 06, 2011
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