2001 Chevy Silverado
Over the months I've noticed the AC getting warmer and warmer. Now it is barely colder than outside (which is about 100f).
Compressor cycles on/off; about 3 seconds on and 7 seconds off.
I have attached a recharge can to the low side plug. The gauge reads~100 PSI (truck is at ambient temp which is ~65f).
I have parts in the mail to convert my R12 manifold gauge to R134a connectors. I have no high side PSI value at this time.
With recharge can connected to low side valve and with the truck running with max ac (again ambient temp at 65f):
When the compressor engages, the low side gauge goes from 100 PSI to 5 PSI in a matter of 3 to 4 seconds. The compressor disengages.
At this time, the low side PSI slowly raises back up to 100 PSI which restarts the compressor shortly after and the cycle goes on...
Any takers on helping me or giving me possible causes (and what to do about them)?
I have a nagging suspicion that someone slapped a recharge can on it and overfilled it. This vehicle is driven by 5 different people; no one fessed up so far... Have to wait for parts to test high side PSI. But I'm also worried that the low side pressure dropped so fast; I feel this is not normal?
Thanks for the help!
The air conditioning compressor failed on my 2015 Silverado a little after a year of buying it new. I just turned it on again for the first time after winter and nothing, it doesnt even sound like my compressor is engaging. The heat works great, no ac at all. I really enjoy my truck and am a big Chevy fan, but the expensive ac repairs are unacceptable. Are ac issues a common Silverado problem?
After replacement of a dead battery, the driver side AC circulates between Warm, cool, and Cold approx every 90 seconds while the passenger side works properly. Based upon research, it seems that this is a common issue and that fixes may be to 1) initiate a re-calibration using a scan tool 2) perform some steps that require removing a fuse, adjusting the temp, shutting the truck off, etc. I've done each of the recommended procedures, however I am still experiencing the same issue.
We also tested the Ac unit for leaks by draining the Freon, measuring the capacity, then replacing it back into the system. The Freon level was at proper lbs therefore proving no leaks in the AC system.
Any idea's of what may need to be replaced to resolved this issue or other steps to try to rectify the issue?
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