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Old 02-28-2008, 10:19 PM
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power steering pump freezing up

Today when my wife backed out I could hear a loud belt squeal. I opened the hood and noticed when she turned the steering wheel all the way to the left the pump ,pulley would stop causing the belt to squeal. Is my pump going out. does it need to be replaced,or would a good flush fix it. It's a 85 300sd. Any suggestions what might be causing this. Thanks RAY M
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Old 02-28-2008, 10:21 PM
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Is your belt tension correct?
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Old 02-28-2008, 10:24 PM
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A flush fixed mine, but it was making more like a low, moaning noise.
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Old 02-28-2008, 10:24 PM
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when you turn the wheel all the way to one side or the other, it puts maximum strain on the pump. if your belt is old, worn, or loose, it will slip. totally normal.
flushing the pump, while always a good idea will not stop this from occuring, actually it would most likely cause the pump to work even better, making the belt slip even sooner.
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Old 02-28-2008, 11:03 PM
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the pulley on the pump stops momentarily and the belt continues. If the belt was loose the pulley wouldn't stop.
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Old 02-28-2008, 11:14 PM
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Quote:
Originally Posted by ray m View Post
the pulley on the pump stops momentarily and the belt continues. If the belt was loose the pulley wouldn't stop.
Yeah, still sounds like a loose belt, re-read the posts above.
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Old 02-29-2008, 12:27 AM
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Quote:
Originally Posted by ray m View Post
the pulley on the pump stops momentarily and the belt continues. If the belt was loose the pulley wouldn't stop.
That means the belt is worn or loose as its sliding over the pump pulley because it has a better grip on the (larger) crank pulley. The pump is putting out max resistance in the full lock settings, causing the pump pulley to stop due to insufficient belt grip.

Replace the belt and tension it properly.

Also, its probably a good time to replace the filter and flush out the power steering fluid too.

All cheap and easy tasks.
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Old 02-29-2008, 11:10 PM
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Quote:
Originally Posted by pawoSD View Post
That means the belt is worn or loose as its sliding over the pump pulley because it has a better grip on the (larger) crank pulley. The pump is putting out max resistance in the full lock settings, causing the pump pulley to stop due to insufficient belt grip.

Replace the belt and tension it properly.

Also, its probably a good time to replace the filter and flush out the power steering fluid too.

All cheap and easy tasks.
Great,Thanks I do appreciate ya'lls persistance. I'l do it . Ray
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