I have a vibration when idling. The dealer today informed me that this was a result of a leaking intake gasket. I have removed the fuel rail etc., and have only two bolts left that I have no idea how to get a wrench on them. They are at the bottom to the intake and while I can see them, they are obstructed by a rail of some sort. Must be a trick to it. I really don't want to pay the dealer $571.00 to install a $5.99 part. If anyone has done this before, I really would appreciate some help with this one.