Recharging the A/C, having issues

[cblackb]

Hey my A/C has started getting a little warmer (still works ok though) and I decided to recharge it. I recharged it about 25,000 miles ago. I bought two cans of the R-134 and supposedly this stuff is supposed to stop leaks and oil the system also. I got it at A-zone it's called "sub-zero". Anyway, I put the gauge on it and ran the system on Max for about 5 mins. It was right about 25 pounds, so I added a can. My gauge says that anything from 30 to 40 is "full". Well, while I was putting the stuff in the psi was jumping around, which is normal but then it stayed at 25 again. So I put another can in..same thing..it's STILL at 25 pounds after two full cans! I'm not putting anymore in. I checked my wifes car and the gauge seems to be working ok, it's at 35 pounds. What gives here? How much of this stuff should I put in? It's like 12 bucks a can. I have to say though that my air is indeed much colder now, so something happened.

[dikdragon]

All I can say is I tried the same crap and could'nt get it to work at all,tried in truck and car,ended up taking it back to store and they gave me a full payment return

[jbeasts10]

are you letting the truck idle or revving it up?..need to bring it up to about 1800 rpms..the tag will tell you how much ..as far as ounces it should take.put the a/c on max .fan wide open and let her cool..hope you have good results....just so u know..if i am not mistaken..25 to 45 psi..is full.ok..sorry forgot 1 thing..for what ever reason.in the past , i have had to push down on the connector in which you are putting the freon in.to get a true reading.might take 2 sets of hands..

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Last edited by jbeasts10 : 08-05-2008 at 05:25 PM.

[cblackb]

Oh ok, I didn't know you had to rev it up a little, yeah I may need to have somebody come over and help me out. I hope I didn't over-charge it, thanks for the reply. I'll also try pushing down on the connector.

[szyd]

fix the leak! You will get tired of putting the cans in and to much stop leak is not good for the pump.