Upon start up the power steering pump belt squeals, it quiets down but squeals when I turn the wheel and if I accelerate hard the belt squeals again. I have replaced the belt but am unsure if the power steering pump needs replacing or if the cause is in the power steering rack. I have not noticed any significant leaks from the rack.
Hi Norman,
Sounds like the adjustment may not be correct on the power steering belt, with the tension not being enough, after you replaced the belt ?
Try giving it a little more tension, and go from there.
Hope I have been of help.
Good Luck !
John.
Hi Norman
Most unusual to be the steering rack, more the pump itself.
Is there any signs of frothing in the Power Steering Reservoir oil ?
Possibly the oil pressure relief valve on the pump is faulty, building up excess back pressure ?
Has the car ever been in an accident ?
Let me know.
Good Luck !
John
How much is the PSO in the reservoir. If it's empty it will make the whistling and whining noise when you turn the wheel. I had first hand with my own car. All it needed was a top up and about 10 minutes drive
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Hi! The pulley could be worn or the belt is not properly adjusted.Causing the belt not to grip the pulley but slide on it,creating a friction.
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I do not think that is it. It made no noise for the first week or so that i owned the car. I replace and adjusted the belt tension. I did add Lucas power steering oil to stop minor seal leakage on the sterring rack. No leaks now but the noise instead.
I do not think it is belt tension. What else could cause the belt to squeal? The power steering pump is putting up a lot of resistance to turning therefore causing the belt to slip and squeal. Could the resistance to the PS pump turning be the steering rack's fault?
the stuck oil pressure relief valve theory makes a lot of sense. When I drive for a bit it almost completely goes away. It causes a lot of back pressure that the pump has to overcome resulting in squealing from the fanbelt. It would be a lot cheaper, and possibly easier to replace the valve first and see if it helps. Thanks!!!
engine diagram of belts
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