Question about 1998 Cadillac Seville

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I have a loud whining noise coming from my ac compressor. i have a 98 cadillac deville and it makes the whining noise even if the ac is off. it makes that noise the whole time the car is running

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  • Anonymous Mar 22, 2014

    Whining motor noise upon accelleration

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The A/C compressor constantly turns because the pulley is connected into the serpentine system. The whining noise is pretty indicative of a low charge in the A/C system. I would start by having your A/C pressure checked and charged if needed.

Posted on Jul 03, 2009

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Posted on Jan 02, 2017

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I have a 95 sedan deville cadillac and it makes a whinning sound when it is on. the car runs smooth but the sound is very loud and increases when the stearing wheel is turned. i have already changed the...


I had the same problem with my 98 Cadillac Deville. I changed the power steering pump and the hose that runs to the rack. The problem was solved, loud noises and whining stopped.

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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.

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