Power Steering Overheating? - Ford Powerstroke Diesel Forum
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Old 09-16-2011, 07:46 PM
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Power Steering Overheating?

Had this posted on the steering & suspension forum, one thought it'd be a better fit here,

I'm new to these forums, but i'm sure Ill be using them a lot.
This all first started when I was pulling my boss out of a hole with my personal truck (2002 F-250 7.3)
Was pulling him, and after a few attempts I got out real quick, when I got back in I think, but am not positive, that I had my wheel turned almost all the way into a small hill, thats when I first realized my steering wasn't right, then along came the brakes going pretty much out. I got to looking & I seen that my PS cap/dipstick had melted/boiled. I knew that it wasn't good, I then had to drive the truck about 20-30 miles back to my hotel. (which was not fun with 37's) I then went bought a new pump replaced it all up & got it all working like before again. I did notice a small hose that had came disconnected on my front right wheel, so I simply put it back on.

About 2 weeks later, I was driving on a gravel road & needed to turn around & head the other way, there was an opening big enough to do a 180 in as I spun out, thats when my steering goes out again. I knew exactly the feeling this time, & first thing I check was the small hose on my right front wheel, & it happened to be disconnected, haven't had the time to trace it to see if it is linked to my PS or just a coincidence, I then brought it back home & got a new pump & replaced it. I now have the small hose more secured with a little clamp just in case.
Right after I got this pump on, I was letting my truck idle, when I heard some unfamiliar noises that seemed to be coming from the PS pump area. I looked around a little & realized the pump was getting real hot again, & as I pulled my new cap/dipstick off I could tell it was way to warm, (really flimsy & possibly a small boil mark on it) I then turned my pickup off & was done with it for the night. I now am now 8 hours away at work without any pictures of the truck or pump.. etc. but am searching for a reason why it may be getting to hot, & any suggestions on things to do. Ill be checking this every night after work.
Thanks all,

Note: This may pertain to the above, a while before the first PS pump blow out, something happened to my steering also, I was up on a curb a little bit & all I know is I had my pickup off for a while, a buddy got in my drivers seat, telling me he loved my truck, then when I got back in & started it up my steering was actually really loose, I checked all openly visible parts while having my wheel turned & nothing seemed loose, was thinking it could be in the steering box itself? not sure on that either. hadn't had time to work/check on that due to being at work a lot & having a different daily driver. not sure if its happened to anyone else tho, when having my oil changed the man actually asked me if I had "super" power steering, noting how loose it was. It may all be linked together some where, it also may just be a coincidence this I don't know yet, & is why I am here.
Thanks again.
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Old 09-17-2011, 09:56 PM
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How did the fluid look when you changed pumps? I'm curious if you're getting air in the system and it's causing cavitation and heat/damage to the pumps. I'm also assuming that the pressure relief valve is built in to the pump. If it isn't, it might be stuck and making the pump run at full pressure all the time.

Just some random thoughts.
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