'99 7.3 power steering / brakes

[cdvarna]

I have a '99 Super Duty that sits for weeks at a time, used mostly for towing. I recently noticed an oil puddle under the truck and found that it was coming from the power steering pump resevoir, it was overflowing out of the cap. I assume that the return line from the hydro booster is draining back into the resevoir. Are there any check valves in the system that can be checked / replaced? I've traced all of the hoses and can't find anything obvious. Perhaps ther is a check valve internal to the pump or hydro booster??
Once the engine is cranked, the fluid in the resevoir sucks down to normal and the steering and brakes operate normally.
Any help would be greatly appreciated.
Tks, Danny

 

[DaveBen]

I think they are all internal. I would suggest that you drain and flush the power steering and fill with new fluid. See if that works, if not it is time to change the ps pump.

Dave

 

[JLDickmon]

I think they are all internal. I would suggest that you drain and flush the power steering and fill with new fluid. See if that works, if not it is time to change the ps pump.

Dave

nah... just park it uphill



I crack myself up

 

[dpantazis]

nah... Just park it uphill



i crack myself up

x2!

 

[JLDickmon]

I thought about this for a couple days, and I have to ask a question...

when you hit the brakes, and then take your foot of the pedal, does the pedal pop right back, or does it take a few seconds to return?

 

[cdvarna]

When I crank up the engine after it's been sitting for a couple of weeks and the resevoir is full to the top and overflowing, the brakes go to the floor initially but push right back up against my foot pressure and work normally until the next time that it sits for a couple of weeks.