Mechanics

WHY DOES MY A/C COMPRESSOR MAKE A CLICLING SOUND WHEN THE A/C IS ON?

1995 Cadillac Deville • 119,000 miles

The air is cool but not so much
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WILL-E-G
June 23, 2012.



Have the system checked for leeks as the refregrant level may be low.

Mhpautos
Jun 23, 2012.
If the compressor is cycling, it could be a failing clutch, excessive pressure in system or a bad pressure switch.

Was anything done prior to this occurring?

KHLow2008
Jun 23, 2012.
I replaced the compressor with a new one about a year ago, last year it worked fine, I have recharged it and it blows out semi-cool air now.I have checked the pressure and its at the normal level.

Tiny
WILL-E-G
Jun 24, 2012.
What is the normal level? Freon level cannot be determined by pressures.

Roy

ASEMaster6371
Jun 24, 2012.
The freon pressure is within the 25psi to 40psi level. With the a/c on at its highest level.

Tiny
WILL-E-G
Jun 24, 2012.
What is the high side pressure?

KHLow2008
Jun 24, 2012.
We need more exact info if you want us to help you.

Roy

ASEMaster6371
Jun 24, 2012.
KHLow2008 not sure I dont have a fitting for that side, Roy basically I heard if my compressor is clicking it might be low on freon or the compressor clutch is bad. But I guess I will take it in for a check, maybe there's more to this. Thank you gentlemen for the advise and help.

Tiny
WILL-E-G
Jun 24, 2012.
The low side fitting is back by the firwall and the high side is closer to the compressor.

Roy

ASEMaster6371
Jun 24, 2012.
If the ompressor is cycling, it can be too high or low pressure or a failing clutch. It can also be due to electrical faults so a proper diagnosis is required.

The low and high pressure would be able to tell us something but if only one, then it does not help. A shop should be able to help you on this.

KHLow2008
Jun 24, 2012.
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