a/c not working.. just blows hot air :\?

[Losiracer2]

yeah i'd have it retrofitted to R134a if you can, more available and blows pretty damn cold I'd have to admit. I just recharged my 300 dollar CB's AC that was already retro'd from the previous owner.

Be sure to check all the O-rings though before you throw some freon in there. If the car's just been sitting for years w/o the AC being cycled then it would be a good idea to replace the easy to get to ones...the two lines going to the compressor and the one behind the grill. I replaced those last night, charged the system w/ 2-3 cans and MAN does this car blow COLD!

People say R12 blows colder, but idk after experiencing R134, I say you're just as good going with it, if the system's been properly retrofitted.

[russell707]

bro turn on the ac.. if u dont hear the compressor turn on it means you need a new compressor.

[5sp5drCB]

bro turn on the ac.. if u dont hear the compressor turn on it means you need a new compressor.

Not true. Alot of vehicles have sensors that read low pressure in the system and disengage the compressor if it drops below a certain point. We just recently fixed a newer Chrysler that had been wrecked in the front and after we replaced the A/C condenser the compressor wouldn't turn back on until after it was being recharged and reading 1.3-1.5 lbs.

[NVmyCB7]

i first would check and see it there is any freon or if the is pressure building up on the low side(thicker ac hose) it will have a valve. just depress the valve with a pen, small allen key whatever. open it a couple time. sometime the valve will release some pressure just because there was some buiilt up inside and after 2 seconds crickets. but if it keeps spting air out with a little oil then you got some freon in there

if it is an outside thread valve it will be an r12 which you cant buy unless you get a permit to buy it(you gota take some tests).

if its a press fitting type valve then the car has been retrofited to r134a in that case you can just got to your local auto parts store and a can of freon. remember you now need a special little valve on the cans(or is this just for cali) so that the freon will come out. they dont just puncture anymore. the cans now have a built in valve and a 10 core charge.

5sp5drCB is right the ac compressor will not come on until there is enough freon in the ac system. if completely empty just put in the recomended ounces of freon. if you have some freon and just want to top off make sure you get the hose with the gauge. so you can be in the correct pressure range.

if everything is working properly the ac clutch will kick on and off and on and off and on and off......

to put in freon your car does have to be on and with the ac on max and dont forget to turn the can upside down. it wont go in right side up.