Loud Noise When Traveling

[SkidRow]

When I get above 65mph, I get a loud noise from the front of my 2008 H3. If anyone's familiar with inboard motors on a boat (especially larger ones), it sounds like that. Anyone have a clue as to where I should star diagnose this?

 

[Best4x4]

Windshield trim is my guess. Remove each side, slap some rubber foam for Door/Windows under it and then reinstall. Solved the noise on both of my H3's.

 

[SkidRow]

It stops though if I let off the gas pedal. I'm thinking front drive shaft?

 

[rsc]

Have you looked at the u-joints yet then?

 

[Best4x4]

Not the windshield then. Probably driveline related.

 

[4speedfunk]

Pinion bearing.

 

[SkidRow]

If it's my pinion bearing,would it be safe to assume my ring and pinion are going to need replacing?

 

[SkidRow]

The u joints seemed fine,but that doesn't mean I probably shouldn't the the time to install new ones. I just turned 100k miles and I'm willing to bet they are the original ones from the factory.

 

[4speedfunk]

Grab the yoke on the front axle and see if you can feel any shake or looseness. Twist is okay but side-to-side or in-out movement is bad.