While I was fixing my idling problem, I decided to try to recharge my a/c b/c it isnt blowing very cold when I turn it on. However, When put the recharge kit on, it said taht I was "good"... and almost into "alert". SO why doesnt my a/c blow cold? Its somewhat cold now, but not nearly as cold as it should be. The metal line going into the cab is extremely cold. If I touch it, it almost feels like my hand is going to freeze to it.. lol. Any tips/suggestions would be great. (2000 Ram 1500 5.9L)
Thanks
kenny

 

sounds like something is possibly plugged, but to be honest i would have no idea, never had any ac problems

 

if you have put some freon in it in the past from a parts store it most likely had some oil in it and your system has too much oil and not enough room for freon. you should buy a new drier, orifice tube, flush the system, unbolt the compressor and dump out the oil, put in the correctamount of oil vacuum it then recharge.

i did the same thing to my 95 ram and had like 8-10 ounces of oil just in my drier not to mention all the oil every where else.

 

Thats right to much pressure will cause the same problem....now to release some pressure let the truck sit for a min or 2 then grab a towelput it over the valvethen the screw driver to push down on the valve keep the towel over it while doing this on the low side push down on the valve VERY CAREFUL !!!! ....BUT I DIDNT SAY TO DO THIS. cause its just wrong...and what kind of freon did you use? i only used the 134a from the white can has dupont name on it..

 

Does it eventually wind up looking like this ...



I'm going through it right now myself only for some reason I can't get the gauge to go into the "blue area". I've tried two cans now and it doesn't seem to move at all.

 

Sometimes the gauge on those combo packages you can get from the corner autoparts or walmart are not accurate. I had a friend who thought he didn't have enough by what one of those kind was showing, and when he took it to a garage and they put their real gauges on it ( the ones with a high and low gauge and three hoses ), the mechanic showed him it was over charged. Too muchrefrigerant. They recovered some of it and had it going again. Sometimes it's worth saving a headache to spend some of the hard earned.

For the one pictured, ifyour compressor is not cycling, and the low pressure switch ( the black thing with the green connector on top of your ice bottle ) is bad, it will never stop pumping freon and give the system a chance to stay within its operating pressure. The low side would fall down so lowas if low on freon because of the constant pull by the compressor, which would cause the liquid line to freeze over. If when you were checking your freon, and you didn't see the gauge rise in pressure after a short while of it going down ( somewhere below your blue mark and into the green ) then the switch is probably bad. If while it's dropping down into your green area, and doesn't rise, you could pull the plug on the switch and see if the pressure goes back up. That will stop the clutchmagnetand disengage the compressor and tell you if the switch was bad.

If you are low on freon every summer, and you haven't seen any leaks by means of oily buildup or from dye if you put some in, you probably havealeaking evaporator. I just went through this problem, as did a friendwho also had aCTD as well. Something about DC's evaporators corroding and leaking for Gen II rams, all where you can't see them. If they get all plugged up, theycan't move air across them, and that could freeze thesystem.

One last possibility might be moisture in the lines, or a plugged orifice tube.