Think I found the source of my rattling noise. Cycled the AC on and off and the noise stopped whenever it was on. Could this be the AC clutch failing? Or something in the compressor? AC works perfect and the noise goes away after warming up. Thanks.
Replacing AC compressor clutch?
- Thread starter HoosierJeeper
- Start date
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TypeRx
Full Access Member
A/c clutch is a common failure point. Mine went and I monkeyed with adjusting the clutch/banging on it which helped moderately for a short period of time. Ended up just replacing the compressor, all a/c lines, refrigerant, etc. for $800. Money well spent
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Sent from my iPhone using Tapatalk
Mike205
New Member
Mine started making noise and the compressor went out shortly afterwards. If you have AC gauges hook them up and see what the pressures are doing while the noise is going. If not see if you can get a free diagnosis
Is it a bearing rattle or clutch plate rattle? How is the clutch gap?
Specs are in this post: http://www.jeepkj.com/forum/f196/ac-clutch-replacement-58590/
If not, it could also be magnetic coil not releasing properly.
Specs are in this post: http://www.jeepkj.com/forum/f196/ac-clutch-replacement-58590/
If not, it could also be magnetic coil not releasing properly.
How do I measure the clutch gap? Also sounds like it could be coming from the alternator. Bought a stethoscope too. The clutch disengages and engages when the AC is on. Is that normal?
uss2defiant
Full Access Member
it's close to winter so the ambient temp is a lot lower so I would expect the clutch to cycle on and off to protect the system.
With Ac on,normal for The clutch to cycle on and off.
You use feeler gauges to measure the air gap .
This video shows air gap https://www.youtube.com/watch?v=Hqp9IJ2ivl4
The proper way is to use feeler gauges and check Jeep specs which are: The AC gap required is 0.0169 - 0.0319"
Sounds like it may be the ALT if you are hearing the noise from the alt using stethoscope...
You use feeler gauges to measure the air gap .
This video shows air gap https://www.youtube.com/watch?v=Hqp9IJ2ivl4
The proper way is to use feeler gauges and check Jeep specs which are: The AC gap required is 0.0169 - 0.0319"
Sounds like it may be the ALT if you are hearing the noise from the alt using stethoscope...
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