2003 2 door Blazer, 4x4, 60k miles
I have a speed sensitive noise coming from the back end of my Blazer, whick started a week ago. The noise starts at around 65 mph, give or take a mile. It sounds like a buzzing noise coming from the passenger side around the rear wheel. It stays fairly constant, but will stop momentarily when a bump is hit or the road surface changes (like a bridge). As soon as I slow below the 65 mark, it stops. There is nothing extra back there, such as tool,etc. that would rattle or buzz. Nothing seems loose, also did a quick check around the wheel well and underneath, nothing obvious was seen. Has anyone had anything similar?

Thanks in adance,
Yukon

 

I would really inspect the heat sheilds under the vehicle. This doesn't sound like hard part failure (wheel bearing, brakes, etc), but more of a trim peice or heat sheild that rattles a bit with increased air speed over it.

 

Thanks, I'll take a look. Almost sounds like something came loose in the tailgate. Also, could shocks be a factor, maybe one going bad and causing extra vibration? Just a thought.

Yukon

 

Everyone,

Finally found the problem, turns out the rear universal was bad, cheap fix and quiet again.

Thanks.

 

Glad to hear you got it fixed!!!