Off and on vibration every 5 seconds

Begga8989 · Oct 5, 2023

PJM41 said: ↑

Hi all, yesterday I picked up a 2015 Mack CXU613 I purchased and drove it home 650 miles. The entire trip between 55-65 MPH the entire cab would vibrate off and on for a few seconds at a time. It is most notable from 61-63 and starts to even out again as speed approaches 70. I even believe it does it some at lower speeds like 25-35.
If powering through those speeds withfull throttle, it is much less notable (though I am only in this speed range a few seconds when giving full throttle) and it is often most notable when releasing the accelerator.

it feels like you are driving on unevenpavement and can be felt through the entire cab- floor, seat, steering wheel,side walls and even the hood can beseen vibrating.

Any ideas?
Click to expand...

PJM41 said: ↑

Hi all, yesterday I picked up a 2015 Mack CXU613 I purchased and drove it home 650 miles. The entire trip between 55-65 MPH the entire cab would vibrate off and on for a few seconds at a time. It is most notable from 61-63 and starts to even out again as speed approaches 70. I even believe it does it some at lower speeds like 25-35.
If powering through those speeds withfull throttle, it is much less notable (though I am only in this speed range a few seconds when giving full throttle) and it is often most notable when releasing the accelerator.

it feels like you are driving on unevenpavement and can be felt through the entire cab- floor, seat, steering wheel,side walls and even the hood can beseen vibrating.

Any ideas?
Click to expand...

Is the problem solved,

Begga8989 · Oct 5, 2023

PJM41 said: ↑

Hi all, yesterday I picked up a 2015 Mack CXU613 I purchased and drove it home 650 miles. The entire trip between 55-65 MPH the entire cab would vibrate off and on for a few seconds at a time. It is most notable from 61-63 and starts to even out again as speed approaches 70. I even believe it does it some at lower speeds like 25-35.
If powering through those speeds withfull throttle, it is much less notable (though I am only in this speed range a few seconds when giving full throttle) and it is often most notable when releasing the accelerator.

it feels like you are driving on unevenpavement and can be felt through the entire cab- floor, seat, steering wheel,side walls and even the hood can beseen vibrating.

Any ideas?
Click to expand...

Is the problem solved

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