Vibs

[jsetina]

Hello all, am a new member and a first time new truck owner. I have been reading the dicussions as a vistor here for about a month and have really been impressed. You folks have a wealth of experince and knowledge, so my hope is that you will be able to shed some light on my question. On my first tow, pulling a one car trailor I noticed a buz or vibration coming from the floor of the truck. The freq or rate per minute was about 960 and increased in intensity to max out at 70 mph and then decreased the faster you went. The rate stays the same, but not as noticable at lower speeds and starts to decrease after 70. With the overdrive not engaged I did not feel this. So, am I looking at some thing in the transmission or is this just a normal harmonic for CTD?

Thanks Joe Setina

 

[wyosteve]

My first guess would be a bad u-joint. Had the same thing happen on a Ford I once owned. Even though your truck is pretty new, it may be worth checking. If I remember correctly, someone had a similar problem on their new truck not too long ago. Seems like it might have been "Klenger" from Colo. Hope you find it.

 

[Big White Beast]

What was the RPM's?

A lot of us experience drone between 2000 - 2200 RPM. This might be what you were feeling/hearing.



Garrett

 

[jsetina]

Re: What was the RPM's?

Originally posted by Big White Beast

A lot of us experience drone between 2000 - 2200 RPM. This might be what you were feeling/hearing.



Garrett

thanks Garrett, yes it was in that range. I was at 70 and the rpm was around 2150. But would I feel it through the floor on my feet and not on the wheel or any where else, dash , seats , range shifter? Can this drone be stopped in any way other than avioding 70? Love this truck but with the limits around here at 70 and with cruise control on this could drive you nuts after an extended period of time.

 

[jsetina]

Originally posted by wyosteve

My first guess would be a bad u-joint. Had the same thing happen on a Ford I once owned. Even though your truck is pretty new, it may be worth checking. If I remember correctly, someone had a similar problem on their new truck not too long ago. Seems like it might have been "Klenger" from Colo. Hope you find it.

thanks wyosteve, yes I did check them, they do not move at all when wrenching em. Would the freq stay the same for different speeds?