2015 steering issue - Dodge Cummins Diesel Forum
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post #1 of 28 (permalink) Old 01-06-2020, 02:02 PM Thread Starter
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2015 steering issue

I have a 2015 ram 3500 srw with 82k miles. The steering is jerky almost like it’s stuck in 4 wheel drive but it is not. With the truck running and I go to lock out the steering the steering wheel will make a rotation on its own back towards center. The jerky ness is on gradual turns. It is wanting to straighten out the steering. I checked the u joints by lifting the truck and spinning the tires by hand then turned the steering wheel til lock which is no issue with the truck off the ground and they spin freely and smoothly. Anybody else have this issue and the fix?

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post #2 of 28 (permalink) Old 01-06-2020, 10:34 PM
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when spinning one tire, what does the other tire do?

1. Nothing
2. spin same direction
3. spin opposite direction

(Both front tires must be off the ground. Also, check the wheel barrings too at this point)

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post #3 of 28 (permalink) Old 01-06-2020, 10:42 PM Thread Starter
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I’ll check tomorrow. I don’t believe it did anything when I jacked it up before and checked the u joints but I didn’t look for that exactly. I know it’s not stuck in four wheel drive cuz I took a video while driving over my phone and the front drive shaft wasn’t spinning. Checked with it in 4 wheel drive and it was spinning. I couldn’t get any play on the tires while jacked up when I checked the u joints. They spin smoothly as well.
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post #4 of 28 (permalink) Old 01-07-2020, 12:16 PM Thread Starter
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I checked it and the other tire does nothing.
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post #5 of 28 (permalink) Old 01-07-2020, 03:39 PM
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Crapped out steering stabilizer?

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post #6 of 28 (permalink) Old 01-07-2020, 04:30 PM Thread Starter
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I was thinking that as a possibility but I wasn’t sold yet. I guess I could start there that’s the cheapest option so far.
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post #7 of 28 (permalink) Old 01-07-2020, 08:08 PM
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You may have a problem with lines to/from the PS pump. If so you'll hear a bit of a hiss if, sitting parked,you apply must a little pressure to the steering wheel - not enough to turn the front wheels just enough to build a little pressure differential in the system - engine running of course.

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post #8 of 28 (permalink) Old 01-07-2020, 09:30 PM Thread Starter
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I’ll try that. When I do give it some pressure it pushes back when sitting. It’s kinda hard to explain but the steering wheel will go back and forth back and forth. Almost like it’s building pressure to a point then wants to force the steering wheel back the other direction and it’s loose. I have to hold it from letting it go back.
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post #9 of 28 (permalink) Old 01-08-2020, 10:17 AM
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Sounds like failure of the power steering to me. I have, in person, seen steering wheels violently turn all the way to one side or the other by themselves, or jiggle back and forth. I was looking for some youtube videos for you but the only ones I found were related to electric power steering. I have seen some in the past that were hydraulic, though, and have seen it in person on older cars.

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post #10 of 28 (permalink) Old 01-08-2020, 10:23 AM Thread Starter
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Yea I looked all over as well and couldn’t find anything. I was leaning towards PS pump and steering gear, but I’m not sure why the steering gear would cause that so I’ve ruled it out. The pump doesn’t whine or anything though which is what I know to be a sure thing a pump is failing. What pump would you recommend? I want to put a filter inline with it as well. I wish I could post videos on here it would be so much easier to diagnose I think without having to try and explain it lol.
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post #11 of 28 (permalink) Old 01-08-2020, 11:05 AM
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Could it be a hydraulic ram? Do these have one? If so, I would list that as a suspect.

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post #12 of 28 (permalink) Old 01-08-2020, 11:14 AM Thread Starter
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No it doesn’t have it. It just has the standard steering stabilizer.
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