Power steering pump swap
Veteran
Joined: Oct 2012
Posts: 339
Likes: 14
From: PA
Nope just whatever little amount is in the coolant hose, it is so little you shouldn't have to add any if you don't have new coolant to add. Washer fluid? I never even touched that, don't even have to worry about it. You don't need to remove the coolant hose I think but it makes a world of difference and I'd recommend it. Like I said I did this a year ago, I can't remember the project perfectly.
The way that the 4.7 PS pumps normally fail, is the connections between the reservoir and the pump or rack fail. Occasionally the reservoir will itself crack from age and vibrations. Mine failed at pretty much everywhere, I couldn't locate just one spot, specifically the reservoir. The way you described it, I'd check one thing before you replace the pump. Wherever a hose connects to the assembly check and see if it is cracked. You might be able to just cut the cracked hose off and reattach it. I had to do this with one of the hoses. My assembly almost lasted 240k miles, at that point is was wiser to replace it just due to age.
Last edited by Blacknights; Jan 17, 2014 at 12:22 PM.
Veteran
Joined: Oct 2012
Posts: 339
Likes: 14
From: PA
Depending on how strong and small you are, you may not even need a wrench to deal with the tensioner. It can be a pain to get a tool to grab it and for me it is faster. Don't forget to inspect your belt while you have it off. Although this isn't as critical as in say an Audi, it still is bad if it breaks from defects.
Legend
Joined: Feb 2005
Posts: 8,058
Likes: 183
From: Fort Worth, TX
On my 3.9, we did it without removing anything. The teardrop tank is brazed to the pump, all one assembly held on by the two hoses and a couple bolts. I just did my rack and now my PS pump is on its way out, still pumping, but making noise and get hot...bearing is on it's way out i think.
