seadragon

Hey guys... I'd appreciate your thoughts on something...

Regarding my driveline vibration, one thing that I have observed is that it varies in intensity. Sometimes, it's barely noticeable and other times it is quite prominent. I've yet to figure out any kind of pattern to it. It's not temperature related nor weather related (rain vs dry etc.).

I'm suspecting the driveshaft is imbalanced, but I won't know for sure until I get it tested in a few weeks.

However, I'm starting to think that if the driveshaft was out of balance, the vibration should be the same all of the time.

Anyway, I still plan to get the driveshaft tested so that it can be ruled in or out as the cause. I'm also starting to suspect that maybe the front end has something to do with it because although the vibration is felt in the cab, it's more prominent in the steering wheel.

Sorry, just thinking out loud.

crossfirefrank

I have the same issue as you do. I have a 16 XLT sport s-crew. It has 3k on it ford tried to find it several times and also used the vibration tool but could not pin point the problem and gave up. I've also found if you pull the steering column all the way out it's much worse and if you push it all the way in it's hardly noticeable. Let me know if you come up with a solution.

Apples

If the last two posts are describing something felt more in your hands through the steering wheel than from the seat-of-yer-p4nts... I would look at the front axle: specifically, have both front wheel/tire assemblies rebalanced, and then think about a replacement for your front shock absorbers. At least one of you might be running a larger tire than stock, and it's the shocks' job to keep that tire (the front coil spring, actually) under control. Weak dampers will allow spring oscillation, and oscillation is felt as vibration. Something to ponder...

MNSportsman

iTrader: (1)

Seadragon, I still get random NVH issues in my gas pedal, floor board and steering wheel. Like you, I have yet to pinpoint any pattern. It does seem to be impacted by the direction of the wind, speed and concrete roads. Some days it's smooth as glass, and some days I feel some slight vibes. My hypothesis is that it has something to do with the way the aluminum transmits the vibrations.

I did a lot of work on the gas pedal vib (separate thread) and that did definitely help that issue.

For me the vibes are minor, not coffee-spilling bad, like my previous Tundra was when driving over concrete expansion joints. It's more of an annoyance when I notice it. It doesn't help that I'm hyper-sensitive to it either. It's really the only thing for me that keeps this from being a "perfect" truck.

Anyway, good luck and keep us posted.

2016 FX4x4

Driveline vibrations usually not constant. So if you feel it at 20 mph you should feel at 40 mph or what (km) just my experience.
Steering wheel vibrations tend to be front tire out of balance. Try rotating tires to see if it changes. Won't cost you anything but time.

seadragon

My truck is completely stock. The wheels/tires were road force balanced at the dealer and they said they were perfect. However, the front driveshaft is something to think about. The vibration is very high frequency. I appreciate your reply.

seadragon

Thanks... to clarify what I mean is that the vibration occurs right at 80 km/h and at that speed, it varies in intensity.

Apples

Ah! yes... I was stuck in rear-wheel-drive mode.

:-p

seadragon

Thanks MNS.. I appreciate your interest in my situation.

You describe it perfectly. It's not a coffee spilling, teeth chattering vibration. It's more of a high frequency pulsing that after driving for an extended period of time, I find myself shaking out my hands. The vibration can be felt by resting my hand on the center console.

I've described it to people is its like holding onto an electric shaver (not quite as bad, but its a close analogy).

I think you are right in that the aluminum body resonates in a certain way. Who knows.. it could be a combination of things, such as a slight imbalance in the driveshaft coupled with the aluminum body/resonance characteristics.

I'm comparing this truck to my previous one (2010 F150). That truck had none of this going on. In fact, I used to comment to my wife quite frequently just how smooth that truck was to drive. Now, she's sick of me cursing the vibration whenever we go for a drive. Having this vibration now is quite annoying because I remember what it's like to drive a truck without it.

sunofabeach

easy solution? avoid driving at 80kph. haha.

definitely keep us updated with the issue.