i am experiencing a knocking noise in what i thought was my engine it turns out that the noise is being generated by what i am seeing as wear in the bushings that drive the fan from the crank studs. if i rotate the fan from side to side you can see the y shaped bracket move about the studs and it makes a clunking sound as it it hits the limit of the bushing wear. I am just out of warranty and dont hold much hope in any dealer help. i am considering replacing the bracket and fan clutch assembly. has anyone else had to do this? hard to believe the dealer could not find this for the last 8 months after repeated complaints with the typical can't duplicate customer complaint reponse.