Hello all,

I have a weird problem that I havent been able to figure out on my 2002 Blazer 4WD. When I am coasting above 50 mph there is a strong vibration. I can not tell where it is coming from though. As soon as I press the throttle very slightly the vibration goes away. And as soon as the speed goes below 50 mph the vibration becomes negligible. The brakes work fine at all speeds with no stuttering or grinding. I replaced the right front hub assemble a month or so ago. The vibrations started a couple weeks after that. Most of the time I drive under 50 in the city so its not a big deal but I have had to start slowing down sooner on the highway to try to prevent it.

Any help would be very appreciated

 

id say trans mount. had same issue. 25-50 mph mad vibration at light throttle.

 

Just went and looked at it. The trans mount seems fine. The rubber isnt too deteriorated. I might replace it anyway since the part is pretty cheap. Any other ideas?

 

Mark the drive shafts, (so you can reinstall them the exact same way) and remove them. Check all of the universal joints for loose or binding conditions.