Francesco Posted June 13, 2016 Share Posted June 13, 2016 Hey guys, I have a 1990 MJ 4x4, with a durango box and WJ pump swap, however it's not working. I've been through 2 boxes and 3 pumps, and I'm not sure what I'm doing wrong, or if I just keep getting bad reman parts. I have a reman Napa pump and box, and each time I follow the bleeding procedure (jack up, turn wheels side to side a million times until fluid doesn't drop, then start car for a second, add fluid, repeat), i end up WITHOUT power steering?? Once bled, I do see the pump pumping fluid, but after about a half turn in each direction, I have no power steering. What's weird to me is it does NOT get easier to steer when moving, when merging on the freeway, it still takes both hands to turn. I will highlight my symptoms in order to make the read easier: Highlight:No P/S steering after half turn in each direction - car drives the same with no pump Steering does NOT get easier when moving, like typical manual steering New lines new pump new box No air bubbles in fluid, can see fluid pumping at idle slowly does NOT get easier when revving motor no leaks anywhere, new o rings each time, etc. In order to make things easier, this is the procedure I followed EXACTLY in order to install new WJ pump: http://www.bsfab.net/?p=152 Someone save me, I miss driving my Jeep!!!Thanks,Francesco Link to comment Share on other sites More sharing options...
Megadan Posted June 13, 2016 Share Posted June 13, 2016 Check if you can see any turbulence in the reservoir when the engine is running and the wheel gets turned. Take off the cap, and shine a light down there with the engine running and somebody turning the wheel. Link to comment Share on other sites More sharing options...
Francesco Posted June 13, 2016 Author Share Posted June 13, 2016 What do you mean by turbulence? I can see fluid pumping if that's what you mean, but when I try and crank it, I'm struggling, but I do not hear the pump making any noises whatsoever. Even at full lock if I pull on it, nothing, which makes me assume bad pump. But I also find it very difficult to steer even when moving, when power steering isn't doing as much, which makes me think bad box? Link to comment Share on other sites More sharing options...
Francesco Posted June 14, 2016 Author Share Posted June 14, 2016 Picking up new parts tomorrow. Anything before then? Link to comment Share on other sites More sharing options...
FrankTheDog Posted June 14, 2016 Share Posted June 14, 2016 Put stock parts back on. My buddy's 95 YJ still has the stock steering with a dana 60 and 39's. Granted it's really struggling in the rocks but the rest of the time it works fairly decent. Link to comment Share on other sites More sharing options...
Francesco Posted June 14, 2016 Author Share Posted June 14, 2016 That would work except the whole point of this upgrade was broken stock parts(too old, just extremely worn) Link to comment Share on other sites More sharing options...
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