lilgcts-v

i let my car sit through the winter and now i have no ac and it seems like i always have warm air coming in the cabin, any idea?

Stone17

iTrader: (3)

Is the A/C compressor turning on?

lilgcts-v

i honestly didnt even think to check, i thought maybe i didnt have any freon, and are there any proper or better ways to see if it kicks on then the idle dipping down a tiny bit?

RADEoN

iTrader: (12)

turn the a/c on, look at the compressor (lowest pulley on passenger side), and pay attention to the center of the pulley, if it spins when the clutch engages, then you have a separate problem, but if it clicks and doesn't rotate, you probably have a bad clutch.

AF_John

iTrader: (1)

I had the same issue and it was a bad ground I'm not sure what wire it was the dealer fixed it under warranty. good luck

GM Customer Service

If I can assist you to get you’re A/C working in time for the hot summer days, private message me.
Jennifer T,
GM Customer Care Service

1BADCTS

iTrader: (17)

LOL, I have the same issue. Going to the dealer in the morning. I just don't have time to mess with it right now.

thefullmonty_07

iTrader: (1)

Probably out of freon, I'd just get a bottle and try it, it's only like 20 bucks.

Chrismikeb

iTrader: (2)

Freon doesn't just get used up. If its out of freon there is a leak, filling it back up without finding/fixing the leak would be a waste of money.

RADEoN

iTrader: (12)

r134a

meatyCTS-V

Wow, is this for real?


I certainly didn't get this last year when my A/C compressor ate itself alive and started throwing sparks out from under my hood lol

-meaty

lilgcts-v

my a/c compressor is working perfectly so i must have a freon leak right ?

DougNuts

iTrader: (1)

I was under the impression that the A/C compressor wouldn't cycle if all of the R134a leaked out because the pressure switch wouldn't see any pressure. Maybe I'm wrong.

lilgcts-v

well what i saw was the compressor was not spinning when the ac was off and then when i turned it on it was so im assuming thats not the issue im open to suggestions obviously.

Stone17

iTrader: (3)

How long does the compressor cycle for? 5 sec?

You can jump the pressure switch to turn on the compressor. I have done that before to check my compressor.

lilgcts-v

i only checked to see if it would turn on and off, im at school and I'm trying to limit the amount of wrenching i do in the parking garage at the expense of looking like a tool hahaha i really appreciate any help i can receive for you guys, i will just have to sweat it until i get home when the semester is over and i have the appropriate tools.

RADEoN

iTrader: (12)

It's still very possible you have a bad compressor, a clogged orifice tube, etc.

meatyCTS-V

We don't have an orifice tube like that... we have a thing that hangs off the side of the condenser with a dessicant bag and a small little screen...

-meaty

bigirishlt1

iTrader: (9)

Check the pigtail on the high pressure switch

https://ls1tech.com/forums/cadillac-cts-v-2004-2007-gen-i/1608121-service-ac-system.html

Sssnake

See above. Mine was in bad shape (occasionally shorting) and causing issues. caspers has a pigtail for easy replacement.