trailernovice
Jul 26, 2022Explorer
Deep rumbling when truck loaded (with cargo or TT)
At certain speeds, and only when the truck (in signature) is heavy with either people, cargo, or the TT (tongue weight per Jayco is 470 dry), the truck has an 'almost-too-low-and-too-deep-to hear' rumble that lasts until the truck gets either above or below the 'problem' speed....it happens at around 10mph and again at around 35 mph..
It's clearly body and/or suspension...definitely not mechanical
The truck has never been wrecked (bought it new off the lot, so I'm sure of this), so it's not a flawed repair job that left something unbalanced or misaligned and thus vibrating
It just started doing this in the past several months
I'm thinking it could be the failure of some sort of bushing or something else that isolates the body from the suspension...
I'd appreciate any thoughts
It's clearly body and/or suspension...definitely not mechanical
The truck has never been wrecked (bought it new off the lot, so I'm sure of this), so it's not a flawed repair job that left something unbalanced or misaligned and thus vibrating
It just started doing this in the past several months
I'm thinking it could be the failure of some sort of bushing or something else that isolates the body from the suspension...
I'd appreciate any thoughts