I replaced most of the a/c system. the clutch on the compressor was not kicking in and was losing refrigerant somewhere around expansion valve. Replaced compressor, dryer/filter, high and low, switches, and expansion valves. Finally got it to hold vacuum for an hour, no psi lost. Charged the system back up to spec. Watching the guauges on the manifold when truck is running, the low side is about 32 psi but the high side will run all the way up to 450 before I shut it off or manually turn on the engine fan, then it will drop back to 150psi. Also the gauge on the high side will start fluttering above 300 psi. A/C is blowing about 55 degrees now.
Could there be a problem or blockage in the condenser? And shouldn't the fan kick on at 300psi?
A/C repair question
Discussion in 'Trucks [ Eighteen Wheelers ]' started by IowaDoorSwinger, Jun 7, 2024.
-
-
Trucking Jobs in 30 seconds
Every month 400 people find a job with the help of TruckersReport.
-
-
-
-
-
-
Trucking Jobs in 30 seconds
Every month 400 people find a job with the help of TruckersReport.
