Notices
Modified JK Tech Tech related bulletin board forum regarding subjects such as suspension, tires & wheels, steering, bumpers, skid plates, drive train, cages, on-board air and other useful modifications that will help improve the performance and protection of your Jeep JK Wrangler (Rubicon, Sahara, Unlimited and X) on the trail.

PLEASE DO NOT START SHOW & TELL TYPE THREADS IN THIS FORUM
Sponsored by:
Sponsored by:

PSC Ram Assist Hydraulic Issue

Thread Tools
 
Old 05-03-2016, 11:21 PM
  #1  
JK Newbie
Thread Starter
 
RECTEX's Avatar
 
Join Date: Oct 2011
Location: Houston, TEXAS
Posts: 81
Likes: 0
Received 2 Likes on 2 Posts
Default PSC Ram Assist Hydraulic Issue

So, I have looked around and searched to the best of my ability but couldnt find anything that match my issue so here goes. This is gonna be long, sorry.

I was running a WTO Redneck Ram Assist kit, and it was ok, worked well enough offroad but was a nightmare above 40-50mph even with 7-10 degrees of caster. I played with lots of alignment specs and nothing made it feel drivable on the highway.
I ditched the WTO ported box for a PSC one that I had them spec as firm steering with a .210" torsion bar. Kept the ram, already had PSC pump and reservoir.

WTO box sucked on the highway but low speed was great, the ram was just the ultimate stabilizer, almost nothing would jar the steering wheel in my hands. I could drive down one of Houstons sh*tty streets and could hold the wheel with just a couple of fingers.

Now the PSC box allows me to feel every little nuance in the road texture. Small ruts make the steering wheel saw back and forth a bit. Going over a speed bump- its really noticeable; its like the ram isnt there. The ram does work, it will push me away from a curb. The steering is much firmer and not the least bit twitchy like it was but this kinda sucks. I dont have the solid feel I had with the Redneck Ram.

Sent the box back to PSC so they could rebuild it, side note- they promised a one day turn around and I got it back nearly 2 weeks later. Came back and it does the same thing, like they didnt touch it. It is repainted so I can only assume they rebuilt it.

Now I'm thinking it must be something else. I bled the hell out of the system, did it PSCs way, did it Howes way, tried other people suggestions. Still the same thing. Could there still be air in the system? Theres another thing as well, whether jacked up or down on the ground, with the ram attached it takes about twice the effort to turn the wheel right as it does left. I'm totally perplexed and not familiar enough with hydraulics to diagnose the symptoms. PSC has not been a great help to me, I dont want to bash them but they seem just as stumped as I am.

Any ideas?
Old 05-04-2016, 02:32 AM
  #2  
JK Super Freak
 
Monte417's Avatar
 
Join Date: Oct 2010
Location: East Meadow, NY
Posts: 1,444
Likes: 0
Received 1 Like on 1 Post
Default

There's no reason the WTO system should be driving like that on the highway. I've had my jeep up to 95 mph with one finger on the wheel. What size ram did WTO give you? Are you running the stock pump and res?
Old 05-04-2016, 03:09 AM
  #3  
Super Moderator

 
jedg's Avatar
 
Join Date: Feb 2012
Location: Bunnlevel, NC
Posts: 3,068
Received 114 Likes on 108 Posts
Default

Originally Posted by Monte417
There's no reason the WTO system should be driving like that on the highway. I've had my jeep up to 95 mph with one finger on the wheel. What size ram did WTO give you? Are you running the stock pump and res?
X2 on this. I'm thinking you had(have) a problem before this. My WTO system is rock solid through 100mph. I have a 1.5" ram and the OEM pump ( no modification), OEM reservoir, and had WTO port my gearbox. No troubles at all with it.
Old 05-04-2016, 04:01 AM
  #4  
JK Freak
 
SoK66's Avatar
 
Join Date: Apr 2009
Location: Colorado
Posts: 771
Received 31 Likes on 29 Posts
Default

Originally Posted by jedg
X2 on this. I'm thinking you had(have) a problem before this. My WTO system is rock solid through 100mph. I have a 1.5" ram and the OEM pump ( no modification), OEM reservoir, and had WTO port my gearbox. No troubles at all with it.
Same here. I'd suggest taking a deep dive into your basic alignment settings and steering components from the steering shaft out.
Old 05-04-2016, 04:24 AM
  #5  
JK Super Freak
 
Monte417's Avatar
 
Join Date: Oct 2010
Location: East Meadow, NY
Posts: 1,444
Likes: 0
Received 1 Like on 1 Post
Default

He could be using the aftermarket psc pump with the WTO 1.5 ram. That would explain the poor drive ability that's why i was asking which size ram and pump he is using. If he is using the psc pump he should be using a 1.75 ram
Old 05-04-2016, 07:28 AM
  #6  
JK Enthusiast
 
FlexyJK's Avatar
 
Join Date: Mar 2012
Location: Escondido, California
Posts: 466
Likes: 0
Received 0 Likes on 0 Posts
Default

I agree with everyone else on the WTO. Very stable. I know multiple people who have bought the PSC box and nothing but problems. All of them leaked and the customer service is crap. I have seen people run the PSC pump and resi with the WTO ram and box with no issues. If everything is tight, I would think it would be something in the box. Without driving the Jeep it would be hard to say.
Old 05-04-2016, 07:45 AM
  #7  
JK Super Freak

 
ShutterBug's Avatar
 
Join Date: Sep 2013
Location: Mentor, OH
Posts: 1,636
Received 6 Likes on 5 Posts
Default

Originally Posted by jedg
X2 on this. I'm thinking you had(have) a problem before this. My WTO system is rock solid through 100mph. I have a 1.5" ram and the OEM pump ( no modification), OEM reservoir, and had WTO port my gearbox. No troubles at all with it.
So I am looking to add hydro assist myself. But it's all a little confusing.

In your setup, you have just the ram and a ported steering box, right? Hoses form the steering box to the ram. No extra pump. No extra reservoir?
Old 05-04-2016, 08:13 AM
  #8  
Super Moderator

 
jedg's Avatar
 
Join Date: Feb 2012
Location: Bunnlevel, NC
Posts: 3,068
Received 114 Likes on 108 Posts
Default

Originally Posted by ShutterBug
So I am looking to add hydro assist myself. But it's all a little confusing. In your setup, you have just the ram and a ported steering box, right? Hoses form the steering box to the ram. No extra pump. No extra reservoir?
Correct. I have the WTO stage II system. They ported my steering gearbox, gave me hoses and the ram (1.5") set for my steering range and the ram mounting tabs. I do have a cooler installed but am using a completely OEM PS pump. I'm only running 35" KM2s ( will move to 37s on next set) so perhaps that's why this system is working so well. Not sure. I've already used it on the rocks and found it to be great. A side effect is that it's been great at negating crosswinds.
Old 05-04-2016, 08:35 AM
  #9  
JK Enthusiast
 
Blizz's Avatar
 
Join Date: Jan 2015
Location: Schererville, Indiana
Posts: 333
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by jedg
Correct. I have the WTO stage II system. They ported my steering gearbox, gave me hoses and the ram (1.5") set for my steering range and the ram mounting tabs. I do have a cooler installed but am using a completely OEM PS pump. I'm only running 35" KM2s ( will move to 37s on next set) so perhaps that's why this system is working so well. Not sure. I've already used it on the rocks and found it to be great. A side effect is that it's been great at negating crosswinds.
This is my plan as well. Glad to hear you've had success w/o the extra PSC parts.
Old 05-04-2016, 08:57 AM
  #10  
JK Freak
 
larry0071's Avatar
 
Join Date: Jun 2014
Location: Pittsburgh, Pa
Posts: 782
Likes: 0
Received 3 Likes on 3 Posts
Default

Originally Posted by ShutterBug
So I am looking to add hydro assist myself. But it's all a little confusing.

In your setup, you have just the ram and a ported steering box, right? Hoses form the steering box to the ram. No extra pump. No extra reservoir?
Referring to the West Texas Off road Redneck Ram:

And depending on year, such as my 2014 with low miles, there is no modifying the internals for increased flow and no rebuild required if it's low enough miles and new enough model of gear box. Mine was a 2014 with 12K miles on it with stock tires, so he actually took $140 off of the websites listed $550! I sent him my gear box, he drilled and tapped it and shipped it back with fittings, hoses and the ram.


Quick Reply: PSC Ram Assist Hydraulic Issue



All times are GMT -8. The time now is 03:15 AM.