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1999 Ford F-150 Question: my engine is making a constant whinning sound



cpapman, 5.4L V8, Birmingham, AL, February 22, 2011, 09:09

My engine is making a constant loud whinning sound the whole time I have it cranked.

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  • Answer #1

    Superbob February 23, 2011, 16:33

    By 'cranked' do you mean while you have the starter engaged? If so, then I'd suspect the starter drive and ring gear on the flywheel. If 'cranked' means when the engine is running, then I'd suspect the alternator, water pump, power steering or any other system driven by the engine.

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    Visitor, February 24, 2011, 05:05

    thanks I meant the loud whinning sound is constant and when I am driving. It sounds like some kind of large windup toy. Someone mentioned it my be alternator bearings.

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    Visitor, February 24, 2011, 05:06

    Thanks. I meant when running. The noise is loud and sounds like some large mechancal toy going down the road. Someone mentioned itmay be alternator bearings

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