1992 Ford Explorer A/C Issues Need some professional advice here?

Question

In my ignorance I thought I could just top off the a/c with R134, not realizing it was and R-12 system (yes I know, stupid). So in the process it seems as though I drained all the R-12 out but of course none of the R134 went in. Needless to say it no longer worked after that. I then did some research on converting the system myself, and bought a kit at Wal-Mart. I didn't think I'd need to take it to a shop to have any R-12 drained, so I just tried it. Another mistake I made is that I didn't take out the valve stem on the low end when I was trying to pump the R134 in. So I took it out and screwed on the 134 adaptor again, tried pumpin some more 134, to no avail.

I'm hoping this makes sense. Any ideas?

Answer 1

If you drained all the old R-12 out, you`ve now probably got air in your system, also,You dont have to remove the valve stem on the R-12 low end screw-on fitting. Go to auto parts store and buy R-12 to 134-a adapter, should cost around 4 bucks. You will have to pull a vacuum on your system, then install new 134-a requirements. It`s really pretty simple to do, but borrowing the portable vacuum is the hard part. If you can`t pull a vacuum, take it to a service mechanic and tell him what you done.

Answer 2

Since you have already committed several Federal violations for recovery of the R-12 and have escaped incarceration thus far, you should take it to a recommended shop that can install the kit properly and fill you up with R-134. Otherwise you might do something that will bugger up the compressor and or try to install a can on the high compression side and have it blow up in your hand.

A good man knows his limitations.

Good Luck!

Answer 3

is the compressor running (ingauging) Sometimes you have to hot wire the low pressure switch to get it running to take the 134