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-   -   Shaking around 70MPH (http://www.ramforumz.com/showthread.php?t=147135)

heath.robertson 07-09-2013 09:55 PM

Shaking around 70MPH
 
When I'm going down the highway around 70mph, my truck gets a terrible shake going. It feels like it's just being constantly bounced up and down, and is noticeable. Sometimes it even makes it a bit hard to breath.

The steering wheel doesn't shake at all, and it drives straight. I just had the front end alignment done, the tires are near new, and the rear rotars are new.

Sometimes it won't do it for a few miles, then it will be bouncing for a few miles, and go back and forth for the whole trip, no matter what the road conditions are.

Any idea of what this could be?

tjbiker031 07-10-2013 08:50 AM

Sounds like fuel issues.....starvation under demand.

Gantman 07-10-2013 08:55 AM

I would look into your wheel balance or even suspension components.

heath.robertson 07-10-2013 10:06 AM

Quote:

Originally Posted by Gantman (Post 1146355)
I would look into your wheel balance or even suspension components.

From what I've read, I'm thinking U joints might be suspect...

It also makes a bit of a sound whenever I pop it out of Park. Do you think that could be related in any way?

Thanks for the suggestions!

heath.robertson 07-10-2013 10:07 AM

Quote:

Originally Posted by tjbiker031 (Post 1146352)
Sounds like fuel issues.....starvation under demand.

I don't think it could be fuel starvation - even when it's doing the bouncing I can still accelerate without any issues.

mb power wagon 07-11-2013 01:26 AM

what kind of sound does it make when you take it out of park? and check your tires. even new ones can be bad. if you get a small bulge on the tread it will cause it. can you tell if the shake or bounce is coming from the rear or the front? another one that may cause this is a bent drive shaft. you could also look to see if the driveshaft lost a balance weight. sometimes even a warped brake rotor can cause a vibration. but that is rare.

Hemi4lyfe 07-11-2013 10:33 PM

I had the similar experience with my truck. It would do it at 60 to 64 mph. The tires where new with about 1200 miles on them. I thought it was my drive shaft or a rear t case bearing because it felt so serious. I took it to a different shop than where I bought my tires for an oil change and I had them balance the tires just to eliminate the chance. It was the balance, have not had the vibe again. They had one of the machines that does the road force balance. I would try that first.

heath.robertson 07-12-2013 11:02 AM

Quote:

Originally Posted by mb power wagon (Post 1147135)
what kind of sound does it make when you take it out of park? and check your tires. even new ones can be bad. if you get a small bulge on the tread it will cause it. can you tell if the shake or bounce is coming from the rear or the front? another one that may cause this is a bent drive shaft. you could also look to see if the driveshaft lost a balance weight. sometimes even a warped brake rotor can cause a vibration. but that is rare.

It's just a kind of pop when bringing it out of Park. It doesn't sound too bad, I just thought I'd throw the detail in there to see if it may be related some how.

Quote:

Originally Posted by Hemi4lyfe (Post 1147910)
I had the similar experience with my truck. It would do it at 60 to 64 mph. The tires where new with about 1200 miles on them. I thought it was my drive shaft or a rear t case bearing because it felt so serious. I took it to a different shop than where I bought my tires for an oil change and I had them balance the tires just to eliminate the chance. It was the balance, have not had the vibe again. They had one of the machines that does the road force balance. I would try that first.

I would be very happy if it were only a tire balance issue! I'll look into that.

mb power wagon 07-13-2013 02:24 AM

Quote:

Originally Posted by heath.robertson (Post 1148211)
It's just a kind of pop when bringing it out of Park. It doesn't sound too bad, I just thought I'd throw the detail in there to see if it may be related some how.



I would be very happy if it were only a tire balance issue! I'll look into that.

that pop is it in the transmission or the diff or does it sound tinny like it's in the driveshaft. it may be a u-joint crushing the needle bearings when you shift to drive and the tension switches on the u-joint caps.

namccanna 07-18-2013 08:30 AM

Had the same exact problem in my 07 quad cab.....took it in, had the outer tie rods replaced and an alignment done (because of the tie rods) and it was fixed.


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