Shaking/wobbling cause?

[Jeremy S]

Hello. Just bought a 2016 1500 Sport and i notice a wobbling/shaking in the passenger seat at certain speeds, in my gas pedal, slightly all around.

I skimmed the forums and seen a few possible reasons, but i wanted to post and show the tires to see if thats it.

Attached are photos of the tires. They look like old worn offroading tires.. maybe these tires are "imbalanced" or something? (Going off what i read on forums, still wet behind the ears when it comes to mechanic stuff)

Any help/tips/advice going forward is appreciated!

 

[FullForceRam]

Does this only appear to happen over 55-60mph?
Does it get worse at higher speeds?
What's the tire pressure set at?
Has it been aligned yet?
Have the tires been properly balanced?

 

[Wallyb4]

I would rebalance the tires, check air pressures and have the alignment redone. Does the steering wheel shake when you step on the brakes at highway speeds?

 

[Jeremy S]

Does this only appear to happen over 55-60mph?
Does it get worse at higher speeds?
What's the tire pressure set at?
Has it been aligned yet?
Have the tires been properly balanced?

I would rebalance the tires, check air pressures and have the alignment redone. Does the steering wheel shake when you step on the brakes at highway speeds?

Thank you both for your replies!

It is only noticeable at highway speeds above 60mph. Steering wheel does not shake when I brake.

I don't know when an alignment was last done or tire balancing so I'll start there and see if that helps the issue!

 

[RamInfo]

Have the tires road-force balanced and while they are at it check for a bent rim.

best,
DG

 

[Jeepwalker]

Most likely a tire balance issue. Could also be an out-of-round tire (rim) or a broken chord. Could be a bad shock that's allowing the tire to bounce up/down as you drive down the HWY, or causing the tire to become out of round. These are drive by wire so IDK why you'd feel it in the pedal.

Have an alignment or tire shop check for a worn ball joint, tie rod end or bushing. Also the wheel bearings, drive shaft and half shaft's for play as well. And the driveshaft balance weight is still attached. Your truck's not old, but parts can fail. Esp if the right amt of Michigan salt gets in the wrong place! ha ha. I had an upper ball joint go out on my old chevy truck within a real short amt of time (years ago). So you never know. It hasn't thrown any engine codes has it?

Let us know what it turns out to be..

 

[Rlaf75]

The only way to really check your tires, unless of course its something obvious is to get them on a spin balancer to see if they are true and there are no flat spots or a possible broken steel belt which will create a wobble. Usually "offroad" or very aggressive tires can develop an uneven wear pattern in the thread causing high and low knobbies which can make the tires louder more wobbly than they usually are. Also the balancer will show a bent rim as well

 

[RamInfo]

The only way to really check your tires, unless of course its something obvious is to get them on a spin balancer to see if they are true and there are no flat spots or a possible broken steel belt which will create a wobble. Usually "offroad" or very aggressive tires can develop an uneven wear pattern in the thread causing high and low knobbies which can make the tires louder more wobbly than they usually are. Also the balancer will show a bent rim as well

With the Laramie wheels the spin balancer should have a pin plate mount as the plastic chrome bits interfere with proper centering on some balance machines.

best,
DG