A/C questions
Thread Starter
Instructor
Joined: Feb 2014
Posts: 135
Likes: 5
From: South Jersey
A/C questions
Okay I have a 92 C4, no a/c I went to connect my gauges and they do not screw on the fittings. My gauges are sorta old , I was told newer cars have different fittings, I bought adapters and still the gauges do not connect to the dryer fitting. Is there something I should know. Also maybe theres a away to just add Freon without the gauges. I have 2 cans of leftover R12 . If all else fails what are the options for changing to R134.
Safety Car
Joined: Sep 2004
Posts: 3,953
Likes: 550
From: Mission Viejo CA
It sure sounds like you're headed for trouble! Have you read the a/c information label in your engine compartment? You SURE don't want to put R-12 refigerant in a R-134 system!!! Get professional help for your a/c problem!!!
Le Mans Master
Joined: Jan 2006
Posts: 5,621
Likes: 207
From: Orlando FL
An R12 system has threaded fittings as so should the gauges used. The 134 system uses a snap on type on connector. The gauges and fittings are vastly different between the two systems.
Are your fittings on the car screw on. Are the connectors on the gauges screw on also?
It would be hard to change to 134 and not use the 134 fittings to charge the system since.
Are your fittings on the car screw on. Are the connectors on the gauges screw on also?
It would be hard to change to 134 and not use the 134 fittings to charge the system since.
Last edited by pcolt94; Jul 1, 2014 at 10:34 AM.
Melting Slicks
Joined: Aug 2008
Posts: 2,082
Likes: 50
From: Palmdale CA
If it has been converted over to 134a the High/Low pressure fittings should be Quick connect..
https://www.google.com/search?q=134a...h=1228&dpr=0.9
Your R12 becomes obsolete!
R12 fittings..
https://www.google.com/search?q=R12+...39%3B215%3B173
https://www.google.com/search?q=134a...h=1228&dpr=0.9
Your R12 becomes obsolete!
R12 fittings..
https://www.google.com/search?q=R12+...39%3B215%3B173
Thread Starter
Instructor
Joined: Feb 2014
Posts: 135
Likes: 5
From: South Jersey
Both fittings are definitely threaded. Now I just went out to look at it again and it seems that the fitting on the accumulator has the plastic cap marked M12 on it, so I checked with my metric taps and dies and it sure enough is a 12 mm fitting, so ????? Any ideas anyone
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Thread Starter
Instructor
Joined: Feb 2014
Posts: 135
Likes: 5
From: South Jersey
Also I did notice that the compressor says R12 on it