Thanks to all that participated in the troubleshooting process. I took the car to Rev-Extreme and the techicians inspected the car. The diagnosis was that the crankshaft pulley was wobbling and that is what was causing the vibration. Well, I spent over 700.00 to replace the pulley and the vibration was the same. I am fully aware that this can be a very difficult diagnosis however after the repair, I went to the front desk and told them that the issue was still at hand and what should I do next. I am not here to bash this shop. Yet after spending this amount of money, and not bitching them out for missing the diagnosis, I began asking for more help. I remember standing at the front counter asking a group of technicians and principals for help and recieved no response. Just a couple of guys shaking their heads saying much of nothing.
This is a horrible place to be when you need help and are desperate for it. I felt abandonded in my search for this help. Not one time was I asked if I was satisfied.
Being fully disgusted concerning this issue, I was at Advanced Performance Tires and Rims in Drew Park and began to ask if anyone could tell me what was going on? I was refered to Greg @ Anti-Venom. I called him and stated my case. Upon his inspection of my car the next day, he immediately told me that there was no way the pulley was the source of the vibration. He said the vibration was not being generated from the front of the motor but from the rear.
His diagnosis was that it was certainly being generated from the clutch region. The clutch was inspected and found to be a new ZO6 clutch with a Fidenza aluminum flywheel. What had happened is the prevoius owner either replaced the cluth himself or had this done, and standard thread bolts were used to secure the pressure plate to the flywheel. Metric threads are the required fastner. Subequently, all of the bolts had lossened and one had sheared off completely. The clutch was in great shape but the flywheel must be replaced.
I wish to thank Greg @ Anti-Venom for properly diagnosing this issue and spending the quality customer care time with me to solve this problem.
The moral here is buyer beware. Ask more questions and get several diagnostic opinions before wasting money.
P.S. I picked up the old pulley and took it to a machine shop to test the truness of the rotation and behold, it was within the tolerence of the manufacturer. Just be careful where you spend your money. This thread is meant to be a service to all Corvette owners and nothing more.
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