AC not working.... how to diagnose?

[tom4bren]

A leak that bad can allow contaminates to enter back in. Whoever ends up working on it should be able to recommend if it's required or not. Purging is just flushing the system out or maybe just evacuating it. Not real sure of the process. I'll defer to the experts - I'm just talking from a layman's perspective.

[SBC]

Mine was doing the same thing, instead of paying someone big money to tell me there was a leak....(cause there was a greasy residue on one of the hose's) i went to Auto Zone got one of the dye and stop leak kits !!!! found exactly where the leak was, and of course that hose is on back order for something like 12 years and coming from japan so i put the stop leak in it and new juice and its been blowing cold ever since. Its not a hard thing to do and you get everything you need to test the system for alot less money outta your pocket........

[cyan328]

Mine was doing the same thing, instead of paying someone big money to tell me there was a leak....(cause there was a greasy residue on one of the hose's) i went to Auto Zone got one of the dye and stop leak kits !!!! found exactly where the leak was, and of course that hose is on back order for something like 12 years and coming from japan so i put the stop leak in it and new juice and its been blowing cold ever since. Its not a hard thing to do and you get everything you need to test the system for alot less money outta your pocket........

thank you tim for the great advise.. you save me a lot of money...

I'm going to try this tomorrow...

one question....

do you think I need to find the leak? or should I just add stop leak... because I know there is a leak somewhere...since I didn't get any AC after a week or so....?

maybe this a dumb question.... hahahaha....

thank you tim....

[cyan328]

tim has recommended me stop leak... they sell at over at autozone.

http://www.efproducts.com/

it like one of those flat tire fixer..... automatically fills the leak.

I'm going to try this tomorrow.

[VehiGAZ]

Careful with that stuff - I tried it last year and it apparently plugged up my expansion valve. $600 later...

[snowtrooper1966]

I too am experiencing a problem with my AC.
I did check for leaks, but cannot find any. My issue is that the system works, but I get a wierd surging that actaully moves my RPM's when idiling. Any thoughts?
Best,

[Anita]

Do you have your climate control on automatic? The compressor automatically comes on and off. At an idle, you will see a rise in the rpm when the compressor comes on and a drop as it goes off. Now depending on how much it fluctuates it could be something else.