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Suspension 3rd Gen Dodge Ram Suspension Problems and Questions


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  #1  
Old 11-30-2011, 08:42 AM
ecoloqua ecoloqua is offline
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Default Can anyone solve this???

Recently purchased 2007 Ram 2500. With 59K miles. There is no steering wander, and no extra play in the steering wheel. No sway at all. BUT...there is heavy lateral sway. When you turn the wheel one way and then quickly turn it the other the truck feels like its on a marshmellow. Almost like it wants to whip back the other way. or "fishtail"

I have had the dealer examine it extensively. They say they cant find anything wrong.
Here is what we have done so far:
Repalced the rear leaf springs and bushings.
Added a rear sway bar
Added a front steering box stabilizer bar.

With each thing we have done the steering wheel feel has gotten tighter side-to-side but thats never been the problem. The main slushyness is still there. Its almost as if it is too stiff, there is no sway at all. Another analogy would be like if you were to try and steer a plane using just the tail rudder.
I am at my wits end trying to figure this out and hoping someone out there may be having the same problem or can offer a solution.

Thanks!
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  #2  
Old 12-01-2011, 10:52 PM
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Maybe because it's a diesel powered 3/4 ton?
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  #3  
Old 12-14-2011, 04:09 AM
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HL has a point. The 3500 diesel I used for landscaping felt a little like what your saying. The truck is so big and cumbersome that it just felt like it was floating at times. Also just cause you feel the disturbance in the rear doesn't mean its a rear problem. It could be something else throwing the truck off balance. Almost the same principle of steering a motorcycle left to turn right. The truck may be responding to something else causing it to transfer the feeling to the rear. Just a theory. Good luck.
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Old 12-17-2011, 10:50 PM
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Thanks for the replies. I took the truck into a place in town that is basically the final authority on suspensions. The tech took a ride with me and said that the problem was likely the tires. They are basically new Bf Goodrich with that deep tread. He said that once the tread wears down it should improve. Wizh the dealer hadnt put those on. I guess there is nothing for me to do now but wear the tires down and wait.

One wierd thing that has come up recently is that when I go over bumps I can feel something akin to tapping through the steering column. Feels like if you were to hold a pipe in your hand and someone taps on it. Could there be something loose in the suspension that causes this?
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  #5  
Old 12-17-2011, 10:53 PM
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Big heavy truck, high center of gravity, probably 8 ply tires. Stiffen up the sidewalls or wear down the tres.

The tapping could be anything smacking the steering column along it's length. I'd look for a loose wiring harness under the dash first.
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Old 12-18-2011, 01:58 PM
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Thanks Michael. Being that I have tried everything else I think you are right about the tires. The crazy thing is I have had those same tires on a 06' 2500 years ago and I dont remember it handling like that but we will see when they wear down what happens.

The ticking feeling in the steering really feels like something is loose in the suspension. It doesnt feel like a loose wiring harbess or anything like that It is a pretty solid thump like (a little hammer on a pipe)that happens right along with each bump.

I guess in some way I was trying to tie that symptom together with the sloppy handling. Which may be going down the wrong road.... no pun intended...
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Old 12-18-2011, 02:31 PM
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Go to shorter sidewall and larger wheel or go up a load rating. You feel the sidewall roll.
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Old 12-18-2011, 02:39 PM
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What air pressure are you running in the tires?
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Old 12-18-2011, 07:23 PM
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Tire pressure has been checked and verfied correct by every place I have taken the truck to so dont think that would be the issue.
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Old 12-18-2011, 07:49 PM
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I have owed a few HD trucks, and they often recommend only 40PSI in the rears if you are not hauling anything. I found at that low pressure, the truck exhibits more that the normal amount of sway, so always ran mine closer to 60psi empty.
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