Question about 1998 Ford Explorer

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Whining sound when the engine/trans in not under a load

When I take my foot off the accelerator, particularly going down an incline a load whining sound starts. When I put it in neutral it stops. When I accellerate again it stops. It does not make the noise during idling. It does not appear to make a difference when the AC is on or off.
It does the same thing in both two and four wheel drive.

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Tighten all the pulleys and replace the belt. get a tune up.

Posted on Sep 07, 2009

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I would say power steering pump.First check to make sure there is fluid in the reserve tank and at the proper level if not top it off and whine should stop.If level is correct then maybe try flushing with fresh fluid.
3.8L engine the power steering fluid was never toped/checked.. because it is a pain in the *** to get at (behind the hot as hell alternator), so it probably ran dry, top it up is probably all you have to do.. if the whining presists then you will have to try and bleed the air out by jacking it up, engine off, turn the wheel one side to the other about 25 times.. if that dont quiet it up then you will have to replace the power steering pump.


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Here is a link that should help you.http://www.paulstravelpictures.com/GM-Pontiac-Grand-Prix-GTP-Power-Steering-Whine/index.html
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