Could someone tell me if this is normal and if not what my possible problem could be. Came home after having the A/C on popped the hood, noticed small bubbles in coolant, coolent seemed to be flowing from radiator into reservoir and the res. was filling back up, I am sorry I know nothing about mechanics but any advise would be helpful. Thank you.

Egine HOT...coolant overflows into the bottle...sometimes Violently.

As the coolant in the engine cools down, overflow coolant gets sucked back into the engine...All normal,

FRANKO

and its normal for the resevoir tank to fill back up?