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#1
06-26-2005, 07:07 PM
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1994 Escort A/C - Problem and Capacity
Have a 94 Escort wagon with the 1.9L engine. This year, the A/C unit was just blowing hot air, so I decided to recharge the system, which I did. The air coming out of the ducts is now cool, but not as cold as I remembered it used to be. Is just the one can of R134a enough for this system, or should I be looking at something else? The A/C unit is definitely working...just not as cold as I think it shoud be, or used to be. Any info is appreciated.
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#2
06-26-2005, 07:54 PM
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Is the compressor cycling on and off at a fast pace? If it is then it could use another can.
__________________
1967 cougar 390 FE in progress 1993 F350 Crew Cab 5.8 111K 1983 Coachman 23ft class C 460 1988 Bronco 351 C6 1964 Galaxie 428 4sp project 1995 Mustang 3.8 Auto 1966 Mustang Fast back Project 1994 Tracer Trio 1.9 1968 F250 Camper Special 390
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#3
07-10-2005, 06:01 AM
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I found out through trial and error that you can have TOO MUCH freon. The only way to do this by yourself is to let all the freon out and then refill with amount specified on the label under the hood. I think mine is 32 ounces.
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#4
07-11-2005, 07:57 AM
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When I recharged mine I bought a refill kit with a gauge built in
the line so you can get an idea how much is in the system. Cost about 3-4$ more than other refill kits but well worth it IMO. Got it at advance auto parts...
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#5
07-11-2005, 08:59 AM
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Not to argue but the pressure gage doesn't tell how much is in the system. Like your oil pressure gage doesn't tell how much oil you have.
 On my car I had too much. Put a turkey thermometer in the A/C register and slowly started bleeding off the R134a. It started at 80 degrees. After several minutes the air temp had dropped to 40 degrees. Closed off my valve and called it good. I did something else that seems to have helped. The heater core always has coolant flowing through it. When you move the control lever you are closing a door in the heater/AC system. But the heater core is still hot sitting down there. I went to Auto Zone and bought a vacuum-operated shut-off valve (like GM uses) and spliced it into the heater inlet hose. By hooking a vacuum source to the valve it completely shuts off coolant flow to the core. So there's no 'extra' heat down there. Anyway, good luck! 
__________________
Nevada Tumbleweed
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