A/c stuck on????
Jul 20, 2017, 09:25 AM
#1
A/c stuck on????
My car was making some weird noises the other day. I popped the hood and noticed a noise coming from the belts/timing cover area. I turned the car off, left it overnight, and drove it home and parked it. Noise went away. I drove it the next day and the noise came back. I popped the hood and noticed one of the A/C lines was frozen white and dripping water. My air conditioning was not on, nor was my blower motor.
Has anyone heard of something like this? I am completely lost here.
Has anyone heard of something like this? I am completely lost here.
Jul 20, 2017, 01:44 PM
#5
Only a couple of things can cause this.
A compressor clutch that has too small of a gap and is dragging/has failed.
An A/C compressor clutch relay is sticking
A short to power on the compressor clutch power wire.
Computer getting a signal that driver has commanded A/C to be on and is grounding the A/C compressor clutch relay(even though no command was given)
Computer has taken a walkabout, lost its mind and is acting on its own, and activating the compressor clutch.(ECM)
A compressor clutch that has too small of a gap and is dragging/has failed.
An A/C compressor clutch relay is sticking
A short to power on the compressor clutch power wire.
Computer getting a signal that driver has commanded A/C to be on and is grounding the A/C compressor clutch relay(even though no command was given)
Computer has taken a walkabout, lost its mind and is acting on its own, and activating the compressor clutch.(ECM)
Jul 20, 2017, 02:52 PM
#6
Only a couple of things can cause this.
A compressor clutch that has too small of a gap and is dragging/has failed.
An A/C compressor clutch relay is sticking
A short to power on the compressor clutch power wire.
Computer getting a signal that driver has commanded A/C to be on and is grounding the A/C compressor clutch relay(even though no command was given)
Computer has taken a walkabout, lost its mind and is acting on its own, and activating the compressor clutch.(ECM)
A compressor clutch that has too small of a gap and is dragging/has failed.
An A/C compressor clutch relay is sticking
A short to power on the compressor clutch power wire.
Computer getting a signal that driver has commanded A/C to be on and is grounding the A/C compressor clutch relay(even though no command was given)
Computer has taken a walkabout, lost its mind and is acting on its own, and activating the compressor clutch.(ECM)
This makes sense to me. I removed my clutch in the fall and used the service shim kit to get the a/c working again. Only a matter of time until failed again. This would also explain the chatter I was getting from the belt/timing cover area.
Most likely my a/c clutch is borked?
Jul 20, 2017, 04:14 PM
#7
Hard for me to say without being there in person. However, if you disconnect the compressor clutch connector and it's still having an issue, there is only one thing it can be. And that would be the compressor clutch itself. Sent from my iPad using IB AutoGroup
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Jul 21, 2017, 06:35 AM
#8
Your last post wouldn't show the easy way so I quoted it the roundabout way.
Thank you for the help. I agree with your troubleshooting steps and they're all logical possibilities. I will look to dig into it tonight if not Sunday.
It's been hot as hell in my region! Thank God I have two cars
Jul 24, 2017, 11:22 AM
#9
It appears to me as to the A/C clutch that's the problem.
Every so often the clutch will stop spinning and stay put but then immediately kick back on. This would explain the noise I was hearing initially. My motor was also idling lower than usual at cold start, and would stop moving quickly and abruptly (extra tension on the belts would explain this).
I was only able to get one of the connectors unplugged on the compressor (it looks like there is two) to rule out any electrical malfunction. I however did not hear the clicking of my A/C relays and when I moved my HVAC controls to the ON positions it did nothing because my compressor was already on...
Every so often the clutch will stop spinning and stay put but then immediately kick back on. This would explain the noise I was hearing initially. My motor was also idling lower than usual at cold start, and would stop moving quickly and abruptly (extra tension on the belts would explain this).
I was only able to get one of the connectors unplugged on the compressor (it looks like there is two) to rule out any electrical malfunction. I however did not hear the clicking of my A/C relays and when I moved my HVAC controls to the ON positions it did nothing because my compressor was already on...
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