This quiet weekend was an opportune time to revisit the sharp clunk. I decided to diagnose the clunk issue since it is present and felt during the drive while it downshifts, and engages back after a stop.
Starting with the assumption that the axle at the left wheel hub has the loudest sharp clunk, I wanted to observe and feel both axles, and their outer cv and inner cv.
I placed our XC90 on the Cn90-style ramps and choked the rear wheels for safety. And asked my helpful soulmate to start the engine and shift between P, R, N, D a dozen time while I observe, listen, and feel.
There is no clunk at N, but here is the order in which you SEE, and then HEAR. 1) gearshift is followed by axle turn, a then a clunk (see then hear); looking up and feet facing forward, it is louder on my left ear.
Next step, I chose to lightly grab the axles, right-hand holding passenger side and left holding drive axle. During the gearshifts, I slide my hand over the shaft to feel the turn, and the intensity of knock. Both axles turn a little and you feel the knock on both hands, however, an extreme and sharp knock is felt on your fingers when your left hand slide closer to the drive axle's outer CV at the hub.
Is there another way to verify?
