[geaux_tigerss]

Originally Posted by cooper1965

Also, just to throw this out there... If a customer comes in with a high rpm issue like you have... First it would try to be diagnosed in shop.. If it can not be duplicated, the only option is to in fact take the car out, and try to duplicate the concern while watching the scan tool live. So to say the dealer wont "beat" on it, is not true.

This is how you handle your situation.
Call your dealer of choice, and ask for the service department. A service writer will answer the call. Remember his name, write it down, whatever.
Tell him you have an intermittent high rpm shutter, and would like to swing by sometime to have a technician ride along with you while it is acting up.
( They will actually appreciate this because otherwise , 2 technicians have to go for one concern. One guy to drive, one guy to view the scan tool)
After he says "sure thats no problem" , just tell him the next time its "acting" up , you will swing by.
When you decide to take it in, simply ask for the service writer you spoke to, and remind him about your conversation. He will pull a technician, he will have a scan tool, and the two of you will go for a ride while he watches the scan tool..

If for any reason you get any grief about doing it this way... FIND ANOTHER DEALER!!

Thanks. Great advise.