Question about 1999 Ford Super Duty F 550

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No power steering 1991 superduty

I have a 1991 superduty and the power steering quit. I replaced the pump. Could it be the steering box?

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  • Jack Iaria
    Jack Iaria May 11, 2010

    Did you do the work yourself?

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1991 ford power steering pump after replacement should be bled off.you should rev the engine to about 2500 rpm before pump starts pumping and then turn the wheel from stop to stop several times.make sure the fluid is clean .if that doesnt help u need a box.

Posted on Jan 20, 2009

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Hello and welcome to FixYa!

The problem can be on the power steering pump itself. If the power steering pump is faulty, the power steering fluid does not circulate properly. One good reason why it squeaks when wheel is turned. Check the power steering belt too if they are not sloppy. If it is, adjust the pump to tighten the belt.

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