2010 Sport Trac XLT Loud humming noise from front left area

[Cahasay]

I just got this truck and then later noticed when getting up to around 40 mph there is a loud high-pitched humming/trumpet type noise. It doesn't always make it but normally does, and when I get to higher speeds the noise gets louder and constant. Turning the wheels slightly will stop it for a moment.

I took it back to the dealership and they thought it was the windshield cowl. Glued it down and it continued. I then took it to a shop, and they checked everything from the wheel bearings and drive train drive shaft everything and couldn't find the issue. They did say the tires are oversized, but they don't think that's the issue.

I'm not sure what to do now, Any ideas?

 

[94Eddie]

From what you are saying it seems like a wheel bearing problem. If you took it to the dealership you bought it from, then I wouldn't trust their diagnosis. Especially if they would be on the hook for repairing it. Take it to a reputable shop and have them check it out.