Ac low pressure service port?
03-12-2012, 01:42 PM
#1
Racer
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Location: Daytona Beach Florida
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Ac low pressure service port?
Well picked up some freon and side tap.. Need to locate the low service port on my 92 coupe... Is it the one on the passengers side just above the a arm??
And we're would I find the high side??
Thank you
And we're would I find the high side??
Thank you
03-12-2012, 05:13 PM
#2
Le Mans Master
Low side will be in the larger diameter line. Usually on the Accumulator (the silver can in front of the engine). High side is on a smaller diameter line, that's usually the one near the upper control arm.
07-30-2014, 05:59 PM
#5
8th Gear
Ditto on the thanks. AC pro had the valves identified wrong on their website, this cleared it up. My '92 needed an entire 20oz can to increase the system 8lbs, and restore the cooling. Easy fix. BTW, does the compressor run continuously, or is it supposed to cycle? I have the electronic system, even when desired cabin temp is reached, the compressor runs constantly, is this by design? Not very economical.
07-30-2014, 07:42 PM
#6
Le Mans Master
Your "easy fix" is probably not.
If there's missing refrigerant, it didn't just get used up. You have a leak.
The system is designed to cycle. It's known as a CCOT system (Cycling Clutch / Orifice Tube). Cycling is the only way that the system can regulate pressures.
If there's missing refrigerant, it didn't just get used up. You have a leak.
The system is designed to cycle. It's known as a CCOT system (Cycling Clutch / Orifice Tube). Cycling is the only way that the system can regulate pressures.
