2002 Avalanche, 1500, at ambient outside temperature of 87 Degrees and normal operating temperature at idle I have Low side Pressure of about 42 PSI and High Side of about 220 psi. AC on and compressor running I am getting cold air from the ducts. After about 10 minutes Low side came up to 45 PSI and High side 225, compressor still running and ducts cool. I got in the vehicle and revved the engine a bit and suddenly the Low Side went to 100 PSI and the High Side went to 110 PSI, compressor stopped running and warm air from the ducts. What is wrong here, I am not sure
anybody have any ideas? Thanks in advance
anybody have any ideas? Thanks in advance