| Re: A/C not blowing cold: Any advice please. |
Subject: Re: A/C not blowing cold: Any advice please. by Danspeed1 on 2010/5/15 6:54:35 Hello, Sounds to me like you already set the stage for a compressor leak. If you are able to get your hand on just one can of R-12 and a can of Dye Charge you can refill the system and resume checking for leaks. As already mentioned if your compressor has leaked out R-12 the pressure switch is sensing this and is shutting down the compressor. If the compressor is off, it doesn't matter what the position of the a/c doors are or how fast the engine is spinning because the R-12 is not circulating thought the system and is not removing heat/Cooling (what ever technical term you prefer) from the evaporator in your vehicle. If available i would advice charging the system with just 1 can of R-12 and a nice shot of dye. Likely (since you mentioned the oil) your compressor will engage when the pressure increases,... the car will cool, and it will sling the dye all over your engine compartment in which case you will know the shaft seal on your compressor is bad and you will... A. Need to purchase a new compressor or B. Replace the shaft seal Your choice really. If R-12 is no longer available (check EBAY) or you want to do a conversion... R134A is a good option and will cool just as good as R-12 if setup CORRECTLY... We can get into detail on that later. HOWEVER you must solve the leak issue... if I remember correctly molecules of R134A are smaller and will cause the system to leak out that much faster.... Hope some of this helps, DG |
