power steering pump problem

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May 18, 2010 | 03:53 PM

Tyler Burdett

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power steering pump problem

I have a 1994 f150 xl, 4.9L, 4x2, m5od. every week or so I will notice that my power steering is unusually loud. I open up my hood to add fluid and found that the cover for the reservoir has blown open, it didn't twist itself open, it blew out on one side, taking force to dislodge it. I refill the fluid and it works fine for another one to two weeks, and the same problem again. Any idea what is causing this?

May 18, 2010 | 04:05 PM

Slip ford man

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From: Calverton

Does the cap still have the big O-ring on it, with that missing the cap may tend to move around a bit...also make sure that the locking tabs are OK

May 18, 2010 | 04:35 PM

danr1

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From: Sand Lake, MI

There is a small vent hole in the cap, make sure its clear.

If you find it is, you'll probably want to post back so we can dig deeper into the problem.

May 18, 2010 | 06:47 PM

Tyler Burdett

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yeah it was clear, i blew it out with compressed air just in case

May 19, 2010 | 04:50 AM

EPNCSU2006

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From: Concord, NC

Do you ever turn the wheel without the engine running?

May 19, 2010 | 08:46 PM

Tyler Burdett

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yes i do, could this cause it?

May 20, 2010 | 04:50 AM

EPNCSU2006

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From: Concord, NC

It will pop the top off every time

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May 20, 2010 | 09:19 PM

EPNCSU2006

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From: Concord, NC

I asked a friend at work who used to work for Ford, and he said something about not having a bypass through from the reservoir to the pressure side of the steering gearbox (I didn't fully follow what he was saying). Turning the wheel forces fluid from the steering gear up through the return line to the reservoir and instead of the steering gear pulling fluid from the reservoir, it overfills and blows the lid.