Question about 2002 Cadillac Deville

2 Answers

My 2002 Deville has started making a whining noise when accelerating after about 35 mph. When decelerating it winds down and then stops.

Does this always for about 2 months now.

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2 Answers

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  • Cadillac Master
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Check manifold gaskets for leaks, check vacuum hoses for leaks. check the transmission oil condition ( auto tranny)
if it is an auto then it may require the pan to come off and check for mechanical fault.

Posted on Apr 26, 2015

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  • Contributor
  • 7 Answers

Use premium gas.

Posted on Apr 27, 2015

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

tatunka
  • 85 Answers

SOURCE: 1996 cadillac sedan deville

have your plugs been changed,sounds like a wire may be crossed

Posted on Nov 12, 2008

sledge1863
  • 149 Answers

SOURCE: 2002 deville, 80K mi., Winning sound at start-up

It could be several things, most likely the idler pulley that keeps the serpentine belt tight. But could also be, power steering pump, altenator. ac compressor or water pump. The best way to find out is to remove the belt from the car by releasing the idler pulley tension. Then one by one check each component by feeling for slack in them and spinning them by hand to see if you feel
roughness. Good luck and dont forget to rate.

Posted on Mar 26, 2009

gypsycat00
  • 224 Answers

SOURCE: i have a loud whining noise coming from my ac

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

gladys_neal
  • 334 Answers

SOURCE: engine makes noise when driving

Are you sure it is the engine. Try putting in neutral as you are slowing down. If the noise is still there then it sounds like a wheel bearing failing

Posted on Dec 07, 2009

  • 1 Answer

SOURCE: car accelerates to about 35 mph and doesnt go any faster

mine does the same thing. im thinking O2 sensor, or something in the fuel line like the ful filter or sumthin. i dont know much about cars, but this is what ive been told. try some octane booster for a temporary fix, they have some NOS brand octane booster at O' reilleys that boost the octane 60 points, its not street leagal, but whos gonna know? lol

Posted on Jul 18, 2010

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