What turns on your automatic compressor in your 1999 buick regal gs with no AC button as it is not coming on when temperature goes up?

Answer 1

this car has no a/c button when you set it to max a/c that turns it on unless you have automatic climate control when you set temp that turns it on if automatic climate control run temp to highest setting if it gets hot the climate control most likely is working if your system is low on freon it has a low pressure switch which prevents system from operating to keep from burning up your compressor because the freon carries the oil which lubricates your compressor also when you loose freon you also loose a small amount of oil so if system is low it will be necessary to add a small amount of oil maybe one or two ounces not to much because if you put to much oil will not operate properly