Compressor relief valve diagnosis - Automotive Air Conditioning ...
2020年6月26日 · However, if you drive it it blows off refrigerant from the relief valve on the compressor as soon as the engine rpms rise by the slightest bit, and then stops cooling. I did this yesterday with gauges in place and did not see any jump in the high side - held steady about 120 psi as it blew off the Freon.
GM high side port rubber ball - Automotive Air Conditioning …
2021年4月21日 · As many times as this subject has come up- everyone needs to know that the plastic "cap" with the rubber element is the primary seal by design. The cap is not like a tire valve cap that is only designed to keep dirt out, it has a rubber seal to hold pressure. Many times,I have felt the cap "pop" off the port when unscrewed due to its "doing its ...
2016 GMC Acadia Normal Low, Excessive High Pressure
2024年6月24日 · This was a couple weeks ago. Yesterday, the car wasn't cooling as it should, probably 60-65 degree air out the vents, but only 75 degrees outside. Got home after a 30 minute drive, and hooked up the gauges. Low pressure was 42, so within range for 75 degrees (35-45), but the high was around 210 when the range should have been 150-170.
pressures won’t equalize to saturated pressures with system off
2024年7月19日 · Why would the pressures not be equal? Retard is on the opposite side of the gauge than where inHG is for pulling vaccum. Gauge only reads to 130psi and then goes into retard~350psi. The system is off and this hot weather the saturation of r134a should be 140 which the high side is, therefore the low should be way past 105 and into the retard area.
Diagnosing expansion valve stuck open vs faulty compressor?
2016年9月6日 · Here are the test results with 82F ambient temperature, doors open, vents blowing high on max cool: After running at idle for a while: 80 High, 22 Low. After running at 2000 rpm for a minute: 90 High, 14 Low. Then going back to idle: 105 High, 30 Low. Then disabling A/C: High side increased to 200, Low side increased to 55.
New compressor, shuts off on high head pressure - Page 3
2023年7月8日 · Tim Site Admin Posts: 1139 Joined: Tue Apr 12, 2016 9:19 pm Location: Scottsdale, Arizona
High pressure on high side after AC rebuild - Automotive Air ...
2024年6月5日 · High pressure on high side after AC rebuild Post by SLOWoody » Tue Jun 04, 2024 5:46 pm Here is the issue I am having: High high side pressures (up to 375psi @ 2K rpm) with low side around 20-24psi.
Buick AC, freezing POA valve, warm air
2024年9月4日 · I did check the pressure on the low side and got around 30 PSI with compressor running. Thats according to specs. But! The POA valve gets really cold and frosty after a few minutes, but the temperature of the evaporator drops only a few degrees.
Thermal Expansion Valve - sanity check - Automotive Air …
2022年4月23日 · Neighbor came over with his New Holland T5040 tractor. Sympton is inconsistent AC function. Hooked up the gauges and when the system kicks on we are getting high side approaching 350psi while the low pressure drops to 20 and the system kicks off. Condenser and evap are both clean. He takes immaculate care of the thing.
Compressor control valve pressure color codes - Automotive Air ...
2024年6月25日 · Tim Site Admin Posts: 1185 Joined: Tue Apr 12, 2016 9:19 pm Location: Scottsdale, Arizona
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