i have 96 ram 1500 4x4, and when u start the truck when it's been sitting for a few days it will vibrate for a mile and half driving then stop and work fine. Also when you start the truck the 4x4 indicator light will come on when u start driving it will go out, but when you start slowing down it will flicker. I have checked for vaccum leaks and couldnt find any, i have checked indicator switch and cleaned it, and i have replaced the u-joints and cv joint on the front axle. And still it will vibrate!!!! I am at my wits end trying to figure out whats going on with this truck. Also tires are brand new, and has had a four axle aligmnent.

 

do you feel the vibration thru the steering wheel, or the seat?

Are you sure the flickering light isn't your Low Washer Fluid light? (don't ask me how I know this.....)

 

Vibration seems to be coming from steering, if i have coffee in the holder it will vibrate with the truck. And no never checked the washer fluid, but after i read your reply i checked and its half full.

 

Does it do this all the time? Or only when in 4wd?

 

Thats the problem when its in 2wd its vibrates for the mile and half but if i put it in 4x4 it works fine and no vibration till i put it back in 2wd.