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Dumb question, maybe, but I'm not sure if my car was converted from R-12 to R-134a. I think it was. But how would I know? Is it the valves? I saw something in the thread about couplers vs threaded valves.
I think it was. But how would I know? Is it the valves?
Yes. R-12 and R-134a use different valves. If yours was originally R-12 and it was converted to R-134a (very likely) then it will have the R-134a valves.
I think I read somewhere that only 1992 968s had R-12 and 1993 onwards was R-134a. My 1992 was a conversion.
I just recharged mine last week...nice cool inside breezes followed.
Yes. R-12 and R-134a use different valves. If yours was originally R-12 and it was converted to R-134a (very likely) then it will have the R-134a valves.
I think I read somewhere that only 1992 968s had R-12 and 1993 onwards was R-134a. My 1992 was a conversion.
I just recharged mine last week...nice cool inside breezes followed.
Fingers are crossed! My ac hasn't worked in the car for a while and it just stopped working in my Audi so I got a recharge kit that I know I won't use all of on the Audi. But it sounds like the port is PITA to get to.
The low pressure? On mine, I turned the steering wheel all the way to the left and was able to access it while laying down.
If yours has been out of service for a while, it may be worth taking it to someone who can evacuate it properly and even consider replacing the receiver/drier. If you get moisture in there it'll just get worse. And once that's done (replacing the drier and evac and checking for leaks) then minimal annual losses are easily covered with a simple re-up hose from NAPA (don't buy the cans with the leak seal, that'll gum up the system).
The low pressure? On mine, I turned the steering wheel all the way to the left and was able to access it while laying down.
If yours has been out of service for a while, it may be worth taking it to someone who can evacuate it properly and even consider replacing the receiver/drier. If you get moisture in there it'll just get worse. And once that's done (replacing the drier and evac and checking for leaks) then minimal annual losses are easily covered with a simple re-up hose from NAPA (don't buy the cans with the leak seal, that'll gum up the system).
Yes – just wanted to add two photos to the discussion, showing the R134a low-side port connection on my 1993 968: the charging port near the AC compressor and the Snap-on fitting.
And don’t forget to put the cap back on ;-)
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OE AC condenser question - design change with switch from R12 to R134a?
