Question about Cars & Trucks
My 2008 altima was blowing hot air and i took it to a technician and he checked it and said the clutch is not spinning it needs a compressor,i bought a used compressor and charged it and it was blowing very cold until after a mile it stop blowing cold air and blowing hot air.my friend try to check it and he says that air is in the line so he let out the air from the line and recharge it.for a while it was blowing coldthen it stops.i took it to a shop and they hooked it up to a machine to vacum the freon&the air when he was ready to recharge it the compressor was'nt responding he said it needs a compresson he hooked it up and found out that the shrader valve is also leaking but the compressor not comming in.what could be the problem?
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Posted on Jan 02, 2017
There are two A/C refrigerant lines. The small line is your high pressure line and the larger line is your low pressure line.
Start at the fire wall and follow the "large " low pressure line to the compressor. The low pressure charge port will be some where on that line.
DO NOT try to recharge on the high pressure side ( small line )
Good luck, let me know.
Posted on Apr 26, 2009
Your compressor's shaft seal is the most likely culprit. If you can find someone to replace the shaft seal and body gaskets in your compressor, you should be fine. Cavaliers use a V5 compressor, an excellent but leak-prone when unused.
Posted on May 13, 2009
More likely the recharge blew a o-ring and you have a leak. When your Cavalier was blowing hot air and a recharge fixed it that means it was low on freon which lets o-rings dry out, go back to the shop and have them leak test it. They use a pressurized dye to find the problem. If it's blowing it's not the cooling fan relay, they may have meant compressor relay but I'd have a leak test done first it's not expensive and easier that chasing unknown possibilities.
Posted on Jun 03, 2009
It could be your low pressure cycle switch is going bad. Check the connection to the switch and it's is located on the A/C Accumulator. The other thing to check is the A/C relay and that is located in the glove box. There is a panel in the glove box that say's relay, there is three relays in there and one of the out side relay's out of the three is the A/C. can not remember which one it is. The middle relay is the fuel pump and the other one is the third break light. Switch the two out side relays and see if your A/C get's better. the other thing too is if the R134a is just a little low, and needs to be topped off. Good luck and hope this helps. if your going to try to recharge the A/C system your self, keep in mind not to over charge.
Posted on Jun 10, 2009
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