Suspension Resonance--low speed bump

[alkaspeltzar]

2019 Silverado, New Body Style, Z71 , 1/2 ton with 6K miles.

 

Every time i drive it over a pothole or crack in road at about 25-35mph, I hear like a double thud from the drivers side only. Almost like the tire is bouncing or there is a resonance.  It is less noticeable when cold or when the truck is loaded down.

 

I have had dealer drive it, service advisors hears it, but not the tech. They have looked trucked over twice, found nothing loose, no collapsed bushings, even balanced tires and checked alignment.  I have even went as far to make sure it wasn't stupid things, like hood rattle or fender liners. I cannot figure it out and don't know what is could be.

 

Any help is greatly appreciated. Maybe it just these trucks are so darn light now you hear the road more.

 

Curious if anyone has this experience. Thank you again

[APPFIRE1]

I had a similar situation happen with my truck.  Turned out to be the left front shock.  They replaced it and haven't heard anything since...

 

[Moend]

Have the same issue and they replaced the front left shock but unfortunately still having the issue. I decided that i am just gonna live with it for now till someone find a solution.

[alkaspeltzar]

ive noticed mine is better when warmer and ive lately been driving more, putting more miles on it. Wonder if it is just tight, hearing some resonance, and as it breaks it will go away. Seems to drive great otherwise.

[Kchampagne]

Here is a thread that may help.

 

 

[APPFIRE1]

Mine was a bad left front shock from the factory.  Replaced under warranty and have not heard it since.

 

Chris