Question about 2000 Cadillac DeVille

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2000 deville ac

Would the compressor cause that noise i heard and how much do you think it would cost to have replaced

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When you turn the a/c on the clutch engages on the compressor pulley and spins with it,compressor clutches do fail,and the sound your desribing sounds like your problem.You can just have the clutch replaced for about $350 or goto a junkyard and buy one and have someone install it.Unfortuantly luxury cars are pricey regarding to parts.

Posted on Aug 10, 2008


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How do i replace the AC? and what do i have to have to replace it?

If your car has an adjustment for the belt, I would suggest you tension the belt a little more first. A slack or loose belt would also cause that problem

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Depends on what kind of noise and where its coming from.
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Could be the serpentine belt rubbing on something, but is probably a bearing problem in the belt idler pulley. However, it could be the power steering pump, AC compressor clutch or generator. As the water pump is at the opposite end of the engine, it's probably not that.

Apr 18, 2017 | 2000 Cadillac DeVille

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Noise from ac compressor

That would depend on the problem and prices in your area.
You can call around and ask for the cost to replace the ac clutch and the compressor.
If the bearing in the clutch is the noise, the clutch can be replaced without replacing the entire compressor assembly.

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Reason a/c not working 1998 cad.deville?

Have the pressure checked. There is a switch that keeps the compressor off if the pressure is too low. This is the most common cause of no AC.
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Mar 30, 2010 | 1998 Cadillac DeVille

1 Answer

I've been having problems with the a/c and it making funny noises and then the serpentine belt broke. My husband thinks that the repair is more than just the belt being put back on and that it involves...

If your husband is correct, the AC pulley is part of the AC clutch, which, typically on many vehicles, is replaced with the AC compressor as one unit. If a person is handy and familiar with cars, the compressor can be replaced at home. The cost of the part would be approximately $200 - 300 depending on the compressor ( re-manufactured, new). The AC system would have to be evacuated and re-charged, as well.
I suggest that the problem should be pinpointed so that the correct part is identified. For instance, there are other pulleys on the engine, one of which my be the cause of the problem.

Jul 30, 2009 | 2000 Ford Taurus

1 Answer

When i start up my 98 cadillac deville there is a loud whining noise from the ac compressor. Will my car run without the ac compressor or will i need to spend the money to replace it?

The car should run okay without the compressor, you just won't have A/C. The cooling fans should still operate with the Engine Coolant Temperature sensor. It is also possible that you just need to charge the A/C system. A loud whining noise is indicative of low charge to the compressor.

Jul 03, 2009 | 1998 Cadillac Seville

1 Answer

2003 mitubishi lancer

I think the noise is most likely from the drive belt, the reason it makes noise with the AC on is that it takes 5 horsepower or more to run the AC compressor, this puts a heck of the load on the belt, as the belt ages it gets hard and polished, this causes slippage, and squeal, esp when a load is on the belt like the AC.

We technicians get no compensation for our time, if this info is helpful or fixes the issue please rate me, thanks

Aug 07, 2008 | 2002 Mitsubishi Lancer

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