I am waiting for my new gauge set and sniffer to show up. I am thinking I will top of the system with some of the dyed r134A and see if I can get the system up and operating again. Then I will look for leaks again, to see I there is anything other than the low side schrader valve leaking. Thanks for...

Looked the system over and didn't see anything obvious until I took the cap off the low side charging port. There was pressure behind the cap and sounds of a leak. Sprayed some soapy water at it and it looks like it is leaking from the Schrader valve. I will have to replace the valve, but should I r...

This vehicle spent its whole life garaged in California.

Do any of the measurements I took suggest anything else with maybe a specific part of the system? I will see if I can identify any leaks this evening.

Good Morning. I have a new to me 2003 GMC yukon XL. I bought it knowing that the front AC was blowing what seemed to be ambient air(I test drove it in Pacifica, CA which is on the coast), so it felt slightly cool but I knew that the system for the front was not working properly. The rear system was ...