1996 Pontiac Grand Am Q&A
1996 Pontiac Grand Am Question: AC DON'T WORK
I suspect the compressor but not sure I am A Ford guy don't know much about this system. High side line gets very hot no cooling. I know were all the major components are located but how can I BE SURE IT IS THE COMPRESSOR? And what else has to be replaced if the compressor is changed out? The gauge said the system has a full charge but no cooling. - mosniper
The heat may be from a restriction. If the compressor is not pumping, there should be not be heat. Make sure that the fixed orifice isn't plugged, which is on the low side. What exactly are the pressures? What is the low side reading? How about the high side? In order to do A/C work, you always need to evacuate and re-charge the system every time you 'open ' it up or the system will ice up from the moisture getting inside. this can cause a severe restriction and ruin your compressor. Before you try to take out the restriction, what are the gauges really reading? You need to be sure of what is happening, other wise your are only guessing and trying parts which will cost a lot and may not fix your car. Best of Luck! If you have to jumper your compressor, that means that it is very low or empty of R134. I would suspect that you have a leak. The fact that your gauges read zero also confirms that your system is empty of R134. I would not jumper the compressor because it will over heat , burn and be ruined. There is oil mixed in with the R134 that the compressor needs. As far as the system not taking in any R134, that can caused by many factors. The first thing to determine is why the system is empty. You need to find the leak. - dandd
My blower has settings of 1 - 5 and only 4 & 5 work. Why would 1,2,& 3 settings not blow any heat or AC?