Why does my truck make popping sounds in 4WD?
Why does my truck make popping sounds in 4WD? Loud popping sounds emitting from below your vehicle while in 4-wheel drive mode could be one of four different components. This is usually a worn out u-joint from either your front or rear drive-shafts. This is possibly the most likely components that could cause the popping sound coming from your drivetrain. Why is my Silverado 4x4 making noise? What I have found is that the flange on the axle shaft end on the drivers side front has play in it when I pry against the axle shaft and the bottom control...