I noticed a vibration at 65mph the second day (360 miles on the odo) I had it. I took it in they checked it out, balanced the tires and said it was fixed. I did not notice it again until Friday (about 3 weeks old now, with 2700mi), the vibration (entire truck shaking slightly) was back and more noticeable. I wrote it off as the road. Then on Sat I pulled my 29' flatbed and the vibration was back and very bad. I then loaded the trailer and it got worse. Now with the trailer off the vibration is getting more noticeable. I have checked the tires myself for knots and separation, and do not notice any problems, but I could have lost a weight. It is going in to the dealer on Wed, but I am really annoyed at this point. My ragged old 2001, is loud and drives like crap, but it does not vibrate like this this. Anyone had any tire balance problems with a new stock truck?

 

Yeah, I have a vibration they still cant fix. Tires have been balanced 4 times by 4 different shops to include a road force balancer. Replaced all 4 ball joints, replaced the steering stabilizer and its still doing it. Im still convinced that there is a hub bearing going out, but they say they are fine. Now with all the snow and running in 4WD, I think Im about to loose a u-joint also.

 

My vote is for rear driveshaft carrier bearing/U-joint or shaft balance problem.

 

Do you feel the vibration in the steering wheel or in the seat???????

 

Sounds like a u/joint getting hot and binding.

 

I think it is a driveshaft out of balance and or a bad u-joint/carrier bearing myself, but we will see. I am dropping it off on Wed. Hopefully they will at least try to fix it.

 

Out of balance is ALL the time.It won't come and go and get worse.

 

The vibration is always there, but under load it is worse. It is also worse on some roads running empty.

 

I dropped it off at 8am today. The "service writer" called at 5:15pm to tell me that I had "overinflated" the tires and that they were getting warm causing the vibration. I informed him that I had dropped the truck off after the first 300 miles and that they (the dealer) had balanced and rotated the tires, and I had not touched them since then. He then asked me to pick the truck up, then drive it and if it vibrated to pick him up and show him the problem on the road. I will be in at 7am tomorrow and make his day. I wanted to put on some 285's, but will not do a thing until this vibration is resolved. Anyone else have vibration issues with their third gen trucks?

 

Sounds like the infamous "70 mph vibe."

I didn't have it in my '03 until the u-joints were replaced. The shop couldn't balance the shaft w/o cutting off the dampener, and a vibe showed up. I installed a Fluidampr and it helped some, but didn't cure it completely.

My new '07 has it too. It comes on a 65 and goes away by 71. It's a rhythmic thrum-thrum-thrum-thrum that seems to be worse under load. The frequency feels like a driveshaft rpm/speed problem.

My vibe is not a tire balance issue, which is at a much lower frequency. The tire frequency/inbalance is more like a du-du-du-du-du-du (don't know how else to describe it in black and white type).

At any rate, I've been told it's a driveline angle issue. First step to find a cure is to remove the front shaft and drive the truck. If the vibe is gone, then you know where the problem lies. If it's not the front shaft, it may be the rear. You can shim the axle to relieve the angle, which may cure the vibe.

Another off-the-wall thing to check is your transfer case fluid level. I've heard some of these vibration issues are actually coming from the transfer case. My x-fer case was 1 quart low from the factory. I would hope it's my imagination, but it seemed better (but not cured) after topping off the case.

Some have replaced the x-fer case to solve the vibe problem, although it seems to be an extreme measure. There was a new case for sale here a while back for $550.

The Dodge service writers have been trained to blow you off on this issue. It's a "normal trait common in Cummins powered trucks since 1989." Whatever. It's still not right. Some trucks have it, some don't. There's a design issue somewhere!

 

Good info. I get the "my truck vibrates too" all the time, but no one else has given the kind of detail you explained. I took the truck to the best tire shop I know of on Friday. They found three tires out of balance, and fixed them. It is much better now. I would say 70% cured. I can live with it now. I also called the dealer and chewed some a$$ about them having my truck for two and half work days and not trying to check the tire balance.

 

I had the same exact vibe, installed my lift new wheels and tires and it went away, I'm wondering if it is tire related???

 

JC you told it exactly right. my truck has had the same problem from day one,except its 70 to 75, so I just drive about 67 mph.this vibration comes standard on the CTD,no extra charge for it,apparently it causes no harm,my truck now has 140k.