R12+R134a

The blue cap to "recharge" the system.. are they different from R12 to R134a?

My A/C needs a boost and unforantly I can't find R12 anywhere. My sticker ontop of my newer looking unit is blue/chrome that says "R12+R134a".

If I bought a recharge kit, and plugged it into the valve under the blue cap, and it fits is it safe to assume the system was converted to 134??

yo,

yes, fittings are diff

and that is prob the retrofit Decal

I have converted mine from R12 to R134A, and it cools the truck much faster.

The first thing you need to do is replace ALL of your "O" rings. **** them with a small amount of Vasoline, USE NOTHING ELSE. Since it hasn't been used in a while, go ahead and replace the Expansion Valve, and the Reciever/Drier. You can pick all of these up at your local Autozone(the O rings come in an assortment pack, so get 3 packs to make sure you have what you need). Replace them now, it WILL save you money in the end.

Then, you will need to go to an A/C service center to have your system Vaccumed out to a negative 3 lb's. This will clean out any R12 left in the system, and allow you to get enough R134A in there to cool properly. Most of the problems you hear about R134A, is because they didn't draw the system down to negative pressure.

You will need to disconnect the harness that connects to your Reciever/Drier, and make a female to male spade jumper, to bypass the Low Refrigerant switch(you'll see what to do when you pull it), to get the compressor to come on.

Install the adapters, and charge it up following the instructions. Don't forget to reconnect your Low Refrigerant switch when finished. Depending on your system type, you may need more refrigerant than the kit supplies. I had to add about a half extra can to get up to the proper pressure.

You can get this kit at Walmart, and Autozone too. Why wait on shipping to save 50 cent ?

by sweepersrgr8

See my site for more retro/recharge info including Ford TSBs..etc.

Cool I'll start this soon.

I'm going to dig out the reciepts that came with the truck, see if I can find the A/C service/replacement one and maybe it'll tell me if it's already been converted over or not.

I think hardest part is getting a shop to pull the R12 out an they'll try to force me to have em put new stuff in :blush:

Any shop will do it and will prolly want to convert it to 134 if it is not already done. R12 is way too expensive and requires a shop to have different equipment. Repair cost using R12 would result in most customers not haveing the repair done. So the shops prefer to use 134.

allthough I found an old case of 12 bottles of R12 in my grandpa's barn, used 2 to recharge my bronco and idk about R134a but my bronco's coolin off all the way down to 40 degree's now. its real nice. haha

coolio2281 said:

allthough I found an old case of 12 bottles of R12 in my grandpa's barn, used 2 to recharge my bronco and idk about R134a but my bronco's coolin off all the way down to 40 degree's now. its real nice. haha

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You accept cash? haha