I have a 1990 S10 that I just put a new compressor on. This truck won't blow cold while idling, so I evacuated it, and swapped the white orifice tube out for a Ford Blue one and it still doesn't cool at idle. The guy at Advance Auto parts said he used something called Industrial 12A with the ford blue orifice in his 1989 Blazer. He said it would get so cold, that he had to switch it into vent mode every 10 minutes to thaw the evaporator out. I have done every trick in the book to get adequate cooling with R134A in my truck. Used the ford blue orifice tube, and turned the low pressure cut out switch all the way down. Still sucks. I have never owned a vehicle with such a poorly designed a/c before. Is what this guy saying true?
Edited: Mon August 16, 2010 at 3:17 PM by s10project90
Works great for cooking steaks.
Some guy that calls himself Oz discovered if you mix propane with butane, you can almost emulate the temperature/pressure properties of R-12. Well, maybe, maybe not, only over an extremely low temperature range, so they recommend adding air to the system, not just any kind of air, but dry air. Surprised they don't provide that in a can as well at outrageous prices.
You could check on your new compressor warranty if you use other than R-12 or R-134a, may learn you won't have a warranty. Also could check on EPA regulations to learn if you are breaking the law using these HC products. Worse part is that propane does not chemically combine, but only mixes, the least dense will leak out first, fool your safety system, compressor will run dry and seize up. Probably the reason no compressor company will offer a warranty on these blends.
In your conversion, should switch to a parallel flow condenser and an R-134a compatible cycling switch and an accumulator, requires a deep flush, R-134a compatible oil, and means to charge your system without changing hoses or you will get air into your system.
Ice, sometimes one has to ask. Is this really a person looking for repair advice or someone selling Propane.
If they are looking for repair advice they will respond to your questions on what has been done and so on!
TRB, understand the time of the year and the 'gas' pushers. Seems a little 'gas' is the answer to all our AC problems. Heck, think next time a call is received concerning performance....shall refer to this post and inform the caller that a little 'gas' will solve all his performance issues.
Hope you all have a great day!!!!!
The strongest reason for the people to retain the right to keep and bear arms is, as a last resort, to protect themselves against tyranny in government.
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