Power steering pump replacement

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Jul 20, 2004 | 09:17 PM

390fe

Thread Starter

Fleet Mechanic

Joined: Jul 1999

Posts: 1,360

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From: Iowa

Power steering pump replacement

The front bearing in my '91 Aerostar's 4.0l went south last night, taking the front seal as well. In order to replace the pump, I need to remove the ac compressor, then the bracket holding the pump, right? Take the pump and bracket out as a whole unit, remove the ps pulley from the pump, remove the pump from the bracket, and reverse to reinstall? I'm trying to avoid any unpleasant surprizes.

Jul 21, 2004 | 12:27 AM

Racerguy

Hotshot

Joined: Aug 2002

Posts: 12,679

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From: BC, Canada

It's been ages since I've done one but I think you can remove the pulley and then the pump without removing the whole bracket.

Jul 21, 2004 | 06:02 AM

nightshifter

Senior User

Joined: Jun 2004

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you might find it easier to deal with the pulley while it's still mounted. I've gone through several of those boogers on my 94, until I finally replaced the rack & pinion at the same time. Make sure you get your lines back up and in place when your done, it's not fun to discover them dragging the ground later. Good luck.

Jul 21, 2004 | 03:52 PM

Muffinman

Laughing Gas

Joined: Jun 2004

Posts: 1,240

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From: Dallas, Texas

And remember that hose is a High-Low Pressure in one unit.

Jul 22, 2004 | 11:29 AM

Berry

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Joined: Oct 2001

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The pump is like other ford power steering pumps and there is a neat little puller you can buy for small $$ that removes the pully before you take the pump off the bracket. The pulley has to come off the shaft to get it off the bracket.
I just did my mustang and the pump on the aerostar is the same set up.

There may be a difference in threads (sae vs. metric) on the newer pumps so make sure you get the one for your application.

Here is the url to a page that shows an example of what you need.

Item #1796 - ISN OTC 7185

http://www.autospecialtytools.com/cg...?doc=ford.dht&

I got one at pep boys and it cost a LOT less than what is shown here.

Jul 22, 2004 | 03:50 PM

GoneFishen

Junior User

Joined: Mar 2003

Posts: 93

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I'd also recommend installing an in-line filter on the return line, like a 3/8" magnefine. I wished I'd put one on mine BEFORE my pump sent metal shavings through the R&P. I have one on both my vehicles now.

John