2012 Noise over 70 MPH.

[tsores]

My 2012 V6 Automatic makes a loud buzzing noise over ~70 MPH. The noise seems to come from the passenger front wheel well. Also, the entire dash vibrates that can be felt when resting your hand on it. I tried to disassemble and reassemble the RF inner wheel well guard(?) with new push pins with no result. Same problem whether A?C is on or off. Has anyone else had to solve this problem?

 

[MrBhp]

All sort of things can be the problem. Something stuck in the tire. Brakes. Bearings. Tie rod ends. Ball joints. Loose trim. Passenger side window is down.

 

[Gladams]

Strut mount?

 

[tsores]

A lot of areas I did not think of. Got some exploring to do.

Thanks.

 

[DieHarder]

I'd start with a rebalance of all four wheels and check alignment. While they're on the machine check the wheels/tires for roundness and run out. The fact that your dash vibrates would lead me to suspect that may be a problem in your case.

I had an instance a few years back where I bought 2 tires (slightly used) and ended up returning them because the roundness of the tires were out by over 1/2 in. Not a problem below a certain speed but at 70 that becomes significant.

 

[Robert Larimer]

My 2012 V6 Automatic makes a loud buzzing noise over ~70 MPH. The noise seems to come from the passenger front wheel well. Also, the entire dash vibrates that can be felt when resting your hand on it. I tried to disassemble and reassemble the RF inner wheel well guard(?) with new push pins with no result. Same problem whether A?C is on or off. Has anyone else had to solve this problem?

Are your underbody covers damaged or removed? That can cause high air pressure in the engine bay that may cause buzzing at high speeds.