A/C Help pls..

[Chevyrider619]

Well my A/C was running good even with these days getting up to 100+ temps.. neway it doesn't blow cold at all, and the clutch dont engage.. I plug my gauge to check how much freon it had and there wasnt ANY pressure or freon but remember clutch dont engage either. I would appreciate some light, sure is a little hot out here to have fam w/o A/C..

 

[Broken Truck]

Well my A/C was running good even with these days getting up to 100+ temps.. neway it doesn't blow cold at all, and the clutch dont engage.. I plug my gauge to check how much freon it had and there wasnt ANY pressure or freon but remember clutch dont engage either. I would appreciate some light, sure is a little hot out here to have fam w/o A/C..

Sounds like a leak...

 

[sumo]

you can go to napa or autozone and pick up some 134a recharge kits. Try to get the one that has a dye in it. If this happens again you can take a black light to it and look around to see where the leak is coming from

 

[bowtiefreak]

The clutch will not engage if it is empty. As stated above get the self refill kits, get the stuff with the dye in it to help find the leak. I did this earlier this year, I lost a full charge in a week. I got the refill kit and some leak stop (it was worth a shot if I am going to replace stuff anyway) and so far so good. 1 month later topper it off with a can and blowing cold. I will replace stuff this fall when the weather cools down.

Hook the can up and run the AC on MAX, the instructions are on the can. It is so easy, once you get some fluid in there the compressor should kick back on. Good luck

 

[Chevyrider619]

One thing i forgot to mention.. About close to a month ago some idiot 4m a shop OVER filled it, i went to pep boys and i bought a can of frreon cause it wasnt cooling enough and the dude says wait ur a/c is over filled and it can lock up ur compressor so i released some freon and sure enough it was cooling in there like a champ.. So now a few weeks later the clutch dont engage. should i try that freon with dye still. appreciate ur help fellows

 

[Broken Truck]

Is there zero pressure in the system? Even when my clutch isn;t engaged I have pressure.

If you are at zero then I would vacuum it down and see if it holds 30 inches for a while.

If it does hold, you can use the vacuum to start filling the system even though the compresor is off.

Yes, you will need a vacuum pump and gauges but they aren;t all that expensive and the money you save will pay for them.

 

[foreverfalcon40]

1) Take it to a SEARS auto center and get a A/C recharge for 126.99. First they will put it thru a leak test and if it fails they will tell you where. The one I work at doesn't do A/C work niether any of our sister stores in the NY area.

I had a leak in my EVAP. I picked up a can of Stop Leak 134a A/C stuff and it worked like a charm. Saved my 5.3hrs! My A/C clutch is sticky bc of the goop but it broke free and stopped making noise! Best $25 I ever spent from NAPA. Been running cold 2 weeks strong.

 

[BWdiver]

plus if the system has discharged compleatly you will have air in the system plus moisture and would have lost the oil which keeps your compresser lubricated.

you will need to find the leak, and replace orfis tube and dryer and recharge.

 

[Green monster]

How much freon does our Hoe's take? My high pressure valve is leaking and Monday gonna replace it and recharge the system.

 

[drowndindreams]

i think it takes 3.6? or 3.4? i fill mine up about once a month

 

[Chevyrider619]

(UPDATE)
So i bought a can of R143a w/ uv. I tried to recharge and its not taking any in, and the gauge marked that it has ZERO PRESSURE! rrrrrrgh. Does anyone else have any idea what it is??? If not then i guess i'm gonna have to take it to the shop, where i dont know yet but really aint trying to. appreciate all the help fellows..
It takes 2.5..

 

[bowtiefreak]

silly questions but are you sure the valve is open on the coolant? My first attempt I pierced the can ands didn't back the needle out far enough and nothing was coming out. Screw it all the way in then most of up to max max and max flow. Tilt the can from vertical to horizontal back and forth like that. The can is under pressure so it should force some in. mine was dry and it started to take. the can will get real cold when it is flowing out. Since the system is empty that is why the clutch is not working. I drive myself crazy tracing the wiring harness looking for a problem until I realized it was dry.

 

[Broken Truck]

2.8 lbs for regular air.

4.0 lbs if you have the c69 option for rear air.

Even if you have the rear air your system may have the sticker calling for 2.8lbs but it takes 4 lbs

 

[Chevyrider619]

(UPDATE)
So kris was right about that q, i dint open the freon valve. Neways, it pumped in clutch started up,after the first can put 2 in. So went home 1-1 1/2 we tried to go out clutch was back down rrrrrrrrrgh! So now i know i have a BIG LEAK efe efeefe.. Well i put some of that uv freon so tonight i dive and look around for the leak

 

[sumo]

Black light time

 

[drowndindreams]

tell us if that black light thing works

 

[bowtiefreak]

If it is a big leak, you may be able to see the green shit everywhere.

 

[Chevyrider619]

wuz up fellas. well as far as the blacklight,its efe sick.. waited till night time flicked the flashlight buyaaaaaa hehehehe at least its not the compressor, its a leak on the high port. any feed..

 

[Pindoctor]

I got a question. My Clutch is turning and then it stops and i charged the system almost near red when clutch is off and when clutch is on it is green, i used that bug can of sealant with the 134a inside of it and still no cold air? do i go to the store and buy a small can of 134a or what do i do? Thanks.