Vibration when accelerating and decelerating

1995 DODGE RAM
240,000 MILES • 5.9L • V8 • 2WD • AUTOMATIC
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YBJUAN
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I have a vibration that I can't seem to pinpoint. It only happens when I'm accelerating and slowing down and stops at higher speeds. i have changed the front wheel bearings.
Apr 17, 2022 at 4:59 PM
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JACOBANDNICKOLAS
  • Experienced Mechanic
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Hi,

If you only feel it at certain speeds, usually that is a balance issue or a bent rim. Have you checked those things? Also, have you checked things like tie rods, ball joints, and stabilizer links/bushings to make sure nothing is loose?

Is there anything you can do to change it once it starts? And does it do it all the time (cold, hot or doesn't matter)? Does it change at all when the brakes are applied?

Let me know.

Joe
Apr 18, 2022 at 10:45 AM
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YBJUAN
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I have balanced and rotated my tires and I've only driven the truck when it's hot and I haven't checked the tie rods, links/bushing, ball joints, stabilizer and I'm not really sure how to do that, and for the brakes I haven't really noticed it getting worse but if were to check that should I start with the rotors?
Apr 18, 2022 at 2:05 PM
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JACOBANDNICKOLAS
  • Experienced Mechanic
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Hi,

Do you feel the vibration more in the steering wheel or throughout the body of the vehicle including the seat?

I went straight to the front end because you indicated the front wheel bearings were replaced. However, if it is more noticeable in the body, the first thing I would be checking are the universal joints on the drive shaft.

Take a look through this link:

https://www.2carpros.com/articles/how-u-joints-work

Let me know.

Joe
Apr 19, 2022 at 9:27 AM
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YBJUAN
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I don't feel anything really in the steering wheel, but I'll do more tests tomorrow morning to make sure. After I'm through with the test I'll take down the drive shaft and check out the u joints.
Apr 19, 2022 at 12:01 PM
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JACOBANDNICKOLAS
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Hi,

That sounds like a plan. I will watch for your reply. Let me know what you find or if there is anything I can do to help.

Take care,

Joe
Apr 19, 2022 at 12:17 PM
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YBJUAN
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So good news, I dropped the driveshaft and put a new U joint in the rear of the driveshaft and no more vibration.
Apr 20, 2022 at 5:26 AM
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JACOBANDNICKOLAS
  • Experienced Mechanic
  • 110,240 POSTS
Hi,

Thanks for the update. I had a feeling that was where you were going to find the problem and was happy to hear it is fixed.

Please feel free to come back anytime in the future. You are always welcome here.

Take care,

Joe
Apr 20, 2022 at 1:13 PM
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