gophaster

Hey guys,

Having an issue with the 05 CTT. It is making a tapping sound (like something spinning, tap, tap, tap) mainly on deceleration (when I let off throttle) at lower speeds. Sound seems to be coming from passenger side front wheel area, happens when driving straight ahead. Seems to be quieted by application of brakes or driving in lower height with air suspension. Seems to be intermittent, if I drive very carefully for the most part I can avoid it making the sound. Also, seems not to happen if I run in lower height settings on the air suspension.

About 2 years ago I did the "Jimi fix" on the cardan shaft center support and that is still intact. Sounds like it could be drive shaft related but doesn't really sound like it's coming from center of truck more like coming from in front of front passenger's feet.Not seeing any visual damage to driveshafts or CV shafts/joints at wheels. Any ideas?

Thanks in advance!

95_993

May still be a CV joint even if you don't see any damage

Wisconsin Joe

Visual on an installed half shaft & CVs isn't going to reveal much, if anything.

Get just that wheel up off the ground and see how much rotational play is there. Due to driveline slop, there will be some, but play in the whole driveline is different from play in the CVs, Listen for the clicking. If you can do so safely, go under and see what the axle shaft is doing. Hold it and wiggle it around while you have someone rotate the tire back & forth.

Petza914

Could also be wheel bearing. When the suspension changes height, it can change the angle or force on the bearing. As said, you need to get that wheel up and try to wiggle it in the 3/9 and 6/12 axes.

gophaster

Thanks very much guys. I will get that corner up again later today and see if there is any play there and I will look more carefully at the cv's etc.

Will report back. Thanks again