How Can I tell if my A/C has already been converted to an R134a?
Thread Starter
Senior Member
Joined: Jul 2005
Posts: 566
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Car: 1998 Volvo S70
Engine: B5254S Engine
Transmission: Automatic
Axle/Gears: It's a volvo?
How Can I tell if my A/C has already been converted to an R134a?
I popped open the hood expecting to see something indicating an R134a system in there but I didnt see a label on the A/C hose or anything it was just blank.
Is there any other way besides that to find out if my A/C system had been changed? I am very curious to know as this car was manufacutred with an R12 system...
Thanks
Is there any other way besides that to find out if my A/C system had been changed? I am very curious to know as this car was manufacutred with an R12 system...
Thanks
Junior Member
Joined: Jan 2004
Posts: 42
Likes: 0
From: Ontario
Car: 1988 Trans AM GTA
Engine: 5.7L Tuned Port Injection
Transmission: 700R4
Axle/Gears: 9 Bolt 3.27
R134a has different valve fittings than R12. R12 has threaded fittings, where R134a has quick-connect fittings. do you know what I mean by fittings? They are the things that look like oversized tire valves on the a/c lines.
Joined: Jan 2001
Posts: 3,188
Likes: 59
From: Conroe, TX
Car: 1987 GTA
Engine: LS1
Transmission: 4L60e
all thirdgen cars came with R12 systems factory. The easiest way to tell if it's been converted is to look for the different fittings - as was mentioned above. If still in doubt, a good mechanic shop will have an electronic sniffer to determine the content of your a/c system.
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