AC problem, high side a bit low, low side high, compressor cycling
#1
AC problem, high side a bit low, low side high, compressor cycling
All of a sudden while driving yesterday, I noticed my compressor cycling on and off every few seconds and my ac getting progressively warmer. Within about 15 minutes, it was blowing warm air. I put AC gauges on it today (thanks AutoZone loaner tool program).
The low side would slowly drop to about 70, then spike to 150+ when the compressor cycled off for a few seconds, then slowly retreat back to 70-80 when it kicked back on. The high side stayed pretty static at about 170. The air coming from the vents was always warm, whether or not the compressor was on. Outside temps are 95* with about 70% humidity.
When the compressor would kick on, the engine would bog for a second or two before returning to idle, much more so than normal.
Orifice tube failure, busted compressor, something else?
Any advice or tips are greatly appreciated.
Here are the gauges, with the low side creeping back to 70
The low side would slowly drop to about 70, then spike to 150+ when the compressor cycled off for a few seconds, then slowly retreat back to 70-80 when it kicked back on. The high side stayed pretty static at about 170. The air coming from the vents was always warm, whether or not the compressor was on. Outside temps are 95* with about 70% humidity.
When the compressor would kick on, the engine would bog for a second or two before returning to idle, much more so than normal.
Orifice tube failure, busted compressor, something else?
Any advice or tips are greatly appreciated.
Here are the gauges, with the low side creeping back to 70
Last edited by TX Tahoe Z71; 08-04-2015 at 07:46 PM.
#3
TECH Fanatic
Most likely a dead compressor. If you're seeing the low side fall but the high side steady, usually means a clogged discharge line, which usually means destroyed compressor.
Trending Topics
#8
TECH Fanatic
Thread
Thread Starter
Forum
Replies
Last Post
zblee
GM Engine & Exhaust Performance
15
08-03-2015 03:45 AM