[Hal Copple]

to amplify the above comments, if you overfull your coolant, as it gets hot and expands, it will push out under the cap to your black overflow coolant recovery tank, on SPF's usually mounted on the front crossmember. I leave my coolant tank, the big one on the front of the engine, at most about half full, to allow for expansion. My overflow cannister will occasionally bubble over, to , so i also have a hose on the top petcock, going right back down to the pavement, keeps my inner front hood from being spotted with dry coolant. Be sure and keep the petcock on the recovery tank open, or verticle.

As for your drivetrain clink, you need to carefully look under the car, and see what is lose, and get out your wrenches, and check every bolt and nut you can find. Don't over torque and strip them, though. It could be a broken exhaust hanger, drivetrain looseness, or a any of a number of things. These cars make a lot of vibration, and need periodic "nut checks."