When I installed my tranny cooler... I some-how punctured one of the lines in the a/c condenser (dont ask). So I patched up the little pin hole with a small amount of JB weld. No more leaks after this, or at least I dont think so. It was distinct when I punctured it, you could hear it hissing. So, I bought some R-134a charge from wal-mart. It has a little gauge on it to tell you if you are full or over full. I filled it up to the correct spot and followed the simple directions. And now, still no a/c. I had someone tell me that I had to do something else, maybe purge the system? But anyway, when I have the a/c on, you can see it (the a/c pulley) engage and than shut off again, I dont think thats normal, bc its doing it so fast... so is the pump gone or do i need to purge it? Further more... is the 134 the correct refill? Bc on the 01's and probably all the other models there are two places it looks like to refill, maybe one is for a dealership to refill.

Thanks in advance

 

hey girls...if the comp. is cycling on-off really quickly, you are still low on freon. it will take about a 1lb or more to completely fill an empty system. 134a is what you should be using. there is only one spot to fill the system, the low pressure side. the refill can you got from wally world will only fit the LP schrader valve. if you emptied your system it would prolly be best to draw a vacuum on it to remove any moisture (bad) that may have gotten into the system.

 

I wasnt sure if it was filled or not, bc the gauge reads full... if i go any higher it will be in the "alert" area on the gauge. However, i guess i must be reading it at the wrong times maybe? bc for the few quick seconds the pump is engaged it shows a low level...

thanks for the tip, what kind of vaccum are we talking about, a special one to fit the vavles? or did u mean vaccum out the lines?

 

Absolutely what he said, it's probably still low since it's cycling on and off so much. The proper way to recharge a system is to first evacuate it, then pull it in to a vacuum for about 15 min to evaporate any of the moisture that may have entered the system.

 

What they said, but the only way to evacuate the system is done by an A/C machine. They can only evacuate it. I would turn the truck on, put the A/C on and add some more and have some one feel when it starts to get cold.

 

Alright, i'll do that. And probably take it to a a/c place to get it done right when i get the chance.. but this is just temporary... so when should i read the gauage? When the a/c pump kicks in?... bc its reading full when its shuts off.

 

Read the gauge with the system running. And if you did not pull a vac. on it, take it to someone that knows what they are doing, it may save you some problems down the road and they will probably fix you up for less than two gas tank fill-ups.

Buy a set of manifold gauges and a vac pump if you are going to do much a/c work.

 

you are gonna have to get the system purged with a vacuum. since the condensor waas exposed to the outside, there air inside the system and it will not cool properly. i did the same exact thing to my condensor when i put my tranny cooler in. it took about 20 minutes to purge the system, and about 5 minutes to fill it up with the refrigerant.