View Full Version : AC not cold
Gigante
05-27-2005, 05:07 PM
As I started using my AC a little while ago I noticed that it was not really cold. Its not hot either its more like air is just being blown around. I have been forced to use the windows which is not fun. I think the lower speeds on the fan are working because 3 i know i can hear but speed one and two are hard to hear. Thats why i dont think its the blower resistor. Anyone know what to do?
Xidion
05-27-2005, 05:20 PM
Could just need to be charged
Or you can have a refrigerant leak. You can also turn the AC on and make sure the clutch is cycling on and off and make sure that your cooling fans (radiator) turn on to cool the compressor down. You should take it in and have them put the R134a system on it to pull a vaccume on it just to check and then recharge it. but my guess if its not as cold as normal but its cool you might just need to have it recharged.
If your lower fan speeds arnt working it might be the resistors. The AC blower uses 2-3 resistors that are in the housing so it gets cooled by the blower to prevent premature failure. The way it works is your current on low sped will go through all the resistors med speed will go through 1-2 resistor and high speed will go through no resistors. All you do is get some T-pins and put them to the grownd terminal and the power terminal of the blower connector (still connected to the blower) and cycle through the speeds and check for the voltage.
Gigante
05-27-2005, 05:56 PM
I know how the resistor thing works cause i replaced the resistor on my old GA. I was just stating that i didnt think thats what it was. So how do i go about charging the AC? I dont think i have any leaks, i have not seen anything leaking. And the radiator still comes on when the AC is on. Thanks for the help. i wasnt expecting nearly that much lol
FlatlineGA
05-27-2005, 06:07 PM
yeah mine did that and i just got a freeon(sp?) refill, now it's cold as balls, cold balls
Xidion
05-27-2005, 06:07 PM
you need to take it in to get it recharged they will hook it up to a R134a recharger pull a vaccume to pull moisture and check for leaks on it then recharge it.
you cant always see an ac leak. Check fittings for build ups of dirt/oil/dust if you dont see any good chances are you dont have any but, you might have a slow leak some where were your AC oil isnt coming out and you wont even notice it nor smell it. Its always best to have a shop do it thus this way they can charge it right and since you cant buy any refrigerant they will have to do it due to EPA.
Gigante
05-27-2005, 06:22 PM
then i guess that is what i will have to do. thanks for the speedy replies and helpful information!
buckeyejack
05-27-2005, 08:31 PM
Mine was cold ,but not as cold as I'd thought it should be , so I picked up a can of 134R at Wal-mart. Added it myself and now it'll blow ice cubes at ya. Can you guys not get 134R where you live? Shoot, I can still get R-12. I use it in my camper.
Texican
05-28-2005, 06:11 AM
You can save yourself a couple of bucks and check it yourself. You can get a pressure gauge from just about any auto store. You want about 26 psi at 2000 rpm at 80°F with the ac set to "Max" and all of the doors open. If it's below that, then you have a leak, then it's "good luck", because finding a leak in a cars ac system is very hard to do. I had to recover all of my refrigerant then fill the system with about 200 psi of nitrogen. I eventually found mine, in my evaporator (the cold part inside of the car).
You can recharge your system and see how long it takes to start taking too long to cool.
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