Pontiac Repair Questions? Ask a Mechanic for Answers ASAP
Greetings! If your air conditioning in not working, or working but not up to par, there can be a few different things that can cause this. There can be anything from restrictions in the system to your blend air door vents not working properly. First and foremost is look to see if your compressor is coming on. If all of your freon has leaked out or even if the freon level is a bit low, the computer will not turn on the compressor. This is to prevent damage to the compressor and the components. This is very common! If the compressor is cycling on and off, than the system is just slightly low on freon. This will cause the AC to work, but poorly. Look for moisture around the outside of the AC fittings. This will indicate a leak. If no moisture is detected, you might just be able to get away with recharge
Sure... not a problem.
How much freon is in the system?
Well, to be honest with you we need to start by evacuating and recharging the system. THis is what we do with every car that comes in with an AC problem. We need to put a full charge on it and start from there. THis is because the computer will not even turn the AC compressor on when it is low on freon. THis is to prevent damage to the AC components.
You can try to jumper the high and low pressure switch to see if the compressor kicks on. IF it does, chances are you are just low on freon.
Look on the compressor. There should be a switch there.
DId you have any luck?
DId you find it?
You asked about the relay so I was telling you the locations of the relay.
If you stick with me, I will be able to get to the bottom of this problem for you.
DId you find the pressure switch?
Sorry about that. I must have read your post wrong.
ANyway, does the compressor come on when you jumper the high side pressure switch?
Ok... sorry about that. My connection was bad for a bit.
Any way, you are aware that the computer will not even turn on the AC compressor if you are low on freon, correct? Every time we get a vehicle in for any AC work, the first thing we do is evacuate and recharge the system. Then you can see if the compressor comes on. I would be willing to bet your compressor would come on if you filled the system with the correct amount of freon.