a/c compressor

[HotZ28]

I am sorry, but this job is not for the novice DIY home mechanic, or those who are willing to try, however, “wondering is were do i start”. Also, if your mechanic has made it clear, “it’s beyond his professionalism”, I would suggest that you find someone that has experience with the Buick ACC system, otherwise you will be just paying for “changing parts” until the problem is resolved! Again, this is a very complicated system to understand and diagnose with its network of electrical sensors, actuators, programmer and control panel. And finally, if you or your mechanic, do not have a factory shop manual to go by, or experience with the system, it would be best to take it to a professional.
(Dealer or AC specialist)?

[Loekee75]

Hotz28, when you mention how complex the a/c systems in Buicks are, I am just curious now if the systems in olds, pontiacs, chevys and caddies around the same era are just as difficult to work on, or does Buick have its own particular system making it distinguishable from other GM vehicles? I

[HotZ28]

Basically, all GM Auto Climate control (ACC) systems have the same functions with only minor differences between the makes and models. This is not to say, “They are the same”, however the operation is similar.

[se2bsw]

Originally Posted by HotZ28

I assume that you have auto climate control (ACC)? If you do, does the temp stay the same, no matter what temp you select? Also, can you feel any change in air movement when manually moving fan speed up or down? There is a "sun sensor" on the dash that has an affect on air flow through the vents on the ACC system, if that is what you are referring to, however, it is not likely to be your problem though. How long have you had this car and did this problem just appear recently?

Hi hot, ok..thanks for the help on the acc, i will try and get that guy to look again, when he feels better(he was just gonna look to see if there were restrictions inside), possible eliminating an electrical issue. he did say that he felt some air coming out the bottom of the acc (the black plastic housing on the floor), which he said could be contributing to air flow loss. he was gonna check this out. i put my hand down there afterwards to see if i cvould feel, but could not. guess he knew what he was looking for. hoping that its a restricto problem as opposed to a time consuming electrical issue. also is it possible to have an inefffective acc control panel(still comes on but not full efficiency), or is it either it works or it dont. tyvm in advance.

[se2bsw]

Originally Posted by HotZ28

I assume that you have auto climate control (ACC)? If you do, does the temp stay the same, no matter what temp you select? Also, can you feel any change in air movement when manually moving fan speed up or down? There is a "sun sensor" on the dash that has an affect on air flow through the vents on the ACC system, if that is what you are referring to, however, it is not likely to be your problem though. How long have you had this car and did this problem just appear recently?

Hi, ive come up with a temporary solution for the rest of the summer, and it costs under 30bucks. theres a fan(sensor) thast runs of solar that supposedly cools your car to about 75 degrees, and that and with current cooling should be ok, espeially if this problem turns into a much bigger(costwise) problem. thanks.