Originally Posted by f150buggy
Has anyone changed their power steering pump? I have a 97 f150 with the 4.6L, and I believe the power steering pump is going out. How hard would it be to put a new one on? Any help would be apprecitated.
If you have to remove the pump there are a few tricks to getting it back in.
First, I don't believe you can pull the bottom front bolt out of the pump without removing the high pressure line (there are four bolts total - I believe they have 10mm heads).
With that said, if you remove and/or replace the high pressure line (on the bottom of the pump), prior to reinstalling the hose, insert this bottom front bolt into the hole through the pump housing. This must be done prior to attaching the high pressure line otherwise the line blocks access to the bolt hole in the housing.
Be careful with the fitting (nut) that surrounds the high pressure line. It is easy to damage. If you put the pump in a vise (upside down), you can insert the bolt I referenced above, then install the high pressure line. If you're real careful you can use an adjustable wrench on the hose fitting. Most would recommend a flare wrench (I think it's 18MM) for this, but it's hard to rotate even the slightest bit due to the pulley interfering with the wrench travel.
Cover/protect the other end of the high pressure hose with tape or a cap to prevent dirt from getting into it. Also be sure to clean off the steering gear box before you uninstall the high pressure line (same reason - dirt).