MrMarty51
Well-Known Member
I did disconnect the wire plug to that variable valve device on the power steering plump of My truck.Well hoping this will be the final saga on my steering for my rig. I had been hearing some sounds from the power steering pump in sharp turns that sounded like it was starving for fluid but it's wasn't low.
I went out into my garage digging around, I knew I had another pump in there somewhere amongst the disaster in there! Finally found it. Now mind you I have been dealing with power steering issues on this truck since I bought it. I had changed pumps a couple of times, boosters and gear boxes over leaks and stiff feeling steering. I think I finally solved the stiffness after I had rebuilt the gear box the first time, then after fixing my mistake having to put the BB's in correctly this last time. this pump sounding like it was starving for fluid has been going on for a while, but hasn't effected anything.
The pump that I had in the garage was new when I bought it and worked but I kept it while swapping parts trying to fix the stiffness feeling. well, with the current pump even after fixing the other issues it had, would always heat up the fluid rapidly, I had put a oven temp probe on the line because the starving noise would start only after things would heat up. the fluid temp would get up to 175+ degrees in just a short drive into town then the noise would start.
So with the stiffness feeling in the wheel now fixed, all the leaks fixed, (why I kept changing boosters) I decided to put the pump back on that I had bought new.
Now I had pulled this pump way back thinking that the parts store had sold me a generic "one size fits all" pump and thought it wasn't pushing fluid the truck needed for both the booster and the box. I pulled the current pump off the truck and pulled it from the reservoir, pulled out the other pump I had in the garage and sat them side by side... Lord only knows why I didn't notice this before, but comparing both pumps I soon realized I had in my garage a P185 high output steering pump! and the pump I had installed was a regular one made for a smaller vehicle!
I should have taken a pic but didn't, the way you can tell is the end cap that holds all the guts, pump veins and whatnot was convex where the one I had installed was concave. you could clearly see the internals in the pump I had in the garage were larger. only problem was the flow and relief valve in it was smaller than the pump I had put in the truck. There are several forum threads in the jeep rock crawler forums on the pressure / flow relief valves in these pumps. you can take the but end of a drill bit to check the flow port size in the valve, also adjust the pressure by the shims in the valve. the one on the high output pump was 9/64" and the one on the other was slightly over 5/32" but not quite 11/64", also the high output pump had more shims making it push at a lower pressure.
This just goes to show when you buy parts from these chain auto parts stores, they come from mfg's and rebuilders that tend to mix and match parts just throwing them together, A1 cardone is one of the major ones.
so here's what I did... I put the high output pump in the reservoir and used the larger valving from the pump I had in the truck on it. installed the pump in the truck, filled it up and took it for a drive.
And would you believe I think I just solved all the issues here! steering was much smoother, no starving noises, and the fluid temp took a good long drive before it topped out at around 165 degrees. I drove all over town, hit some of the main roads, went into the city blocks turning up and down different streets and all seemed smooth. I was out driving around for maybe 45 minutes to an hour before I came back home calling it good!
I guess I had gathered enough parts from these chain auto parts stores dealing with this over the course of a year or more to finally put together the right combination that works for this truck!
This just goes to show, when we have to replace something that breaks on our rigs, wherever you get your parts at, make dam sure it's the right one and not some thrown together part, rebuilt or new.
I dont know if it really made a difference. I will be ordering the kit to pull that valve and replace it with that adapter kit thats available.