Twim

Hi,
I am new here and I think you guys are doing a great job!
My a/c is not working, why?
I checked all fuses and relays, but the compressor does not engage!
Any help would be great!
Thanx

Nomad76lj

it could be the clutch in your conpresor. it works like the clutch in your car. when its not needed it freewheels when you turn it on it starts turning the compresor. i would take it and get it cheaked at a shop just so your not braking any seals on the system if you dont have to. hope this helps a bit anyway.

Twim

I am a bit familiar with the way it works, but I was wondering if there is anything else I could check as to why it doesn't engage before I take it to the mechanic who most probably is going to tell me right away that the compresor needs to be replaced.

Nomad76lj

was it making any noise that you heard before it quite working maby a baring went bad? i think though it sounds like a trip tp get a new conpreser. iv never tryed to take one apart before so i dont know if you could rebuild one or not.

Twim

I think I am going to make the trip, I will let you know how it works out!
Thanx

SLJ2137694

It could be something as simple as a low refrigerant charge. Don't assume the worst case. AC systems will leak their charge over a period of time and that is why they are re-charged occasionally. If you are low on refrigerant, a technician should do a leak check on the system.

Patrick

but would a freon leak cause the compressor to not engage?

SLJ2137694

An A/C compressor that is running but not pumping refrigerant is starving itself of oil. The refrigerant carries the oil with it. To protect the compressor, the system probably uses a pressure switch to keep the compressor from running if the refrigerant charge is low.

Ruffus55589

ok guys i have an impala, 03' 3.4 my compressor and cooling fans quit about the same time. checked all fuses and relays all of them seem fine. i can pull a PO480 code. but i dont know how to find the sequences. can anyone help me?