how to tell if its R-12 or R-134a?

[94_XLT]

I have a 94 XLT. I am not sure if the previous owner changed it to an R-134a setup or if it came stock with an R-134a setup. Any way to check?

 

[TheJackal]

Not sure myself either but one way to tell is to unscrew the caps to the service ports. If they have threads on them, they're R-12. R-134a uses quick-disconnect ports.

 

[Maniak]

And in "theory" when an r-12 is covnerted to r-134 it is SUPPOSED to have a sticker on the core support stating it was converted and what oil and how much r-134 to use.. BUT, that only seems to show up when shops do the conversion (I didn't put the sticker on when I converted).

EDIT: I just noticed you have a 1994 which is the 1st year for r-134 from the factory... In you case, just look at the service ports as mentioned already.

~Mark

 

[94_XLT]

Ok cool...I'll give it a look later....one last question...how much will it set me back to get it recharged in a shop?