2017 Silverado LT z71 stiff and shakes over bumps

[Matt Owen]

So I have a 2017 Silverado 1500, has 108000 miles on it and sometimes when I go over bumps i can feel a vibration in the gas pedal
and it will pull one way. I've noticed it happens most in the rain and it sounds like the traction control is activating.
I was sitting in a drive thru and got a "Service Brake Assist" prompt on the dash, and for a few minutes if I creeped forward and
slowed down it felt like the ABS activated but I haven't had that problem since

Truck is sitting on a 7 inch rough country lift with vortex front shocks and 35x12 tires, not sure if that has anything to do with the problem 

[JimCost2014]

23 hours ago, Matt Owen said:

So I have a 2017 Silverado 1500, has 108000 miles on it and sometimes when I go over bumps i can feel a vibration in the gas pedal
and it will pull one way. I've noticed it happens most in the rain and it sounds like the traction control is activating.
I was sitting in a drive thru and got a "Service Brake Assist" prompt on the dash, and for a few minutes if I creeped forward and
slowed down it felt like the ABS activated but I haven't had that problem since

Truck is sitting on a 7 inch rough country lift with vortex front shocks and 35x12 tires, not sure if that has anything to do with the problem 

Welcome to the site.

 

Did you have the lift installed, and if so, did you have any of these problems before?

Just a guess, but vibrations may be there because drive line angles are not in spec, guess on the ABS, maybe the lines are the original and now not long enough because of the increased height? Once again, both guesses on my part.

[Matt Owen]

On 3/17/2022 at 11:49 PM, JimCost2014 said:

Welcome to the site.

 

Did you have the lift installed, and if so, did you have any of these problems before?

Just a guess, but vibrations may be there because drive line angles are not in spec, guess on the ABS, maybe the lines are the original and now not long enough because of the increased height? Once again, both guesses on my part.

Sorry for late response but I bought it lifted so I'm not sure if it had problems before and I haven't thought about the cables not being long enough for the height