I went ahead and had my a/c system re-done yesterday. They put on a new compressor with new tubes and valve. The guy said that there are no leaks in the system but for some reason the air is only blowing out at 65 degrees. He said that there might be something wrong with the duct work or something relating to the heater core. Does anyone have any idea what it is? I would rather try and fix the problem myself as opposed to taking it there again and paying them.
Full Version: A/C Problems
I got this info from an AC Hanes book last year. It's in a post in these forums somewhere.
The information that I found useful was this:
1994 Camaro/Firebird
Low side pressure: 21-29 (shown by gauges on fill bottles)
High side pressure: 115-200 (shown by scan tools)
It's possible the guy was nervous filling it, or stopped after a certain pressure. I have a realtime scanner and got the coldest air when the high side pressure was in the 190psi range. 130-160psi would yield the temperature you are receiving.
You could just buy a can of Plain-Jane r134a (no oil or stopleak) and give it a mini fill. Just put in a little at a time and see if you get any colder.
NOTE: If you go over 210psi (roughly) it throws a code and turns off the compressor. I'm guessing that same value is maybe 40-45psi on the low side pressure. If you find the AC kills off you would then need to do an overnight computer reset (battery disconnect), unless you have a "code resetter."
The information that I found useful was this:
1994 Camaro/Firebird
Low side pressure: 21-29 (shown by gauges on fill bottles)
High side pressure: 115-200 (shown by scan tools)
It's possible the guy was nervous filling it, or stopped after a certain pressure. I have a realtime scanner and got the coldest air when the high side pressure was in the 190psi range. 130-160psi would yield the temperature you are receiving.
You could just buy a can of Plain-Jane r134a (no oil or stopleak) and give it a mini fill. Just put in a little at a time and see if you get any colder.
NOTE: If you go over 210psi (roughly) it throws a code and turns off the compressor. I'm guessing that same value is maybe 40-45psi on the low side pressure. If you find the AC kills off you would then need to do an overnight computer reset (battery disconnect), unless you have a "code resetter."
QUOTE(Red94Formula @ Jul 27 2008, 06:11 PM) 
I got this info from an AC Hanes book last year. It's in a post in these forums somewhere.
The information that I found useful was this:
1994 Camaro/Firebird
Low side pressure: 21-29 (shown by gauges on fill bottles)
High side pressure: 115-200 (shown by scan tools)
It's possible the guy was nervous filling it, or stopped after a certain pressure. I have a realtime scanner and got the coldest air when the high side pressure was in the 190psi range. 130-160psi would yield the temperature you are receiving.
You could just buy a can of Plain-Jane r134a (no oil or stopleak) and give it a mini fill. Just put in a little at a time and see if you get any colder.
NOTE: If you go over 210psi (roughly) it throws a code and turns off the compressor. I'm guessing that same value is maybe 40-45psi on the low side pressure. If you find the AC kills off you would then need to do an overnight computer reset (battery disconnect), unless you have a "code resetter."
The information that I found useful was this:
1994 Camaro/Firebird
Low side pressure: 21-29 (shown by gauges on fill bottles)
High side pressure: 115-200 (shown by scan tools)
It's possible the guy was nervous filling it, or stopped after a certain pressure. I have a realtime scanner and got the coldest air when the high side pressure was in the 190psi range. 130-160psi would yield the temperature you are receiving.
You could just buy a can of Plain-Jane r134a (no oil or stopleak) and give it a mini fill. Just put in a little at a time and see if you get any colder.
NOTE: If you go over 210psi (roughly) it throws a code and turns off the compressor. I'm guessing that same value is maybe 40-45psi on the low side pressure. If you find the AC kills off you would then need to do an overnight computer reset (battery disconnect), unless you have a "code resetter."
I took it back to the shop and they discovered that there was a leak in the system and they ended up fixing it. Thx for the help.
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