So a week ago my coolant light came on went to the dealer figured out it was the lower intake gasket, got raped by them $550 for everything didn't have the time to do it myself. So today i get in and am on my way to Indianapolis and i start hearing a sound and it starts shifting hard. Get back home call the dealer and take it over they look at it for over a hour not finding anything then one of there mechanics come up and tells them that it sounds like the flex plate is fitting on the flywheel. Come to find out after putting the car on the lift and looking at the flywheel there is a grove in it showing. There diagnosis is that there is a crack on the flywheel which is causing it to hit the flex plate. So by having the LIG repaired its caused the pressure in the motor to go back to normal which is in turn effecting other things. As of the tranny they say that some pressure solenoid is going bad inside causing it to shift hard. Quote to fix all $1300 f that I'm trading it in for a GTO