My jeep has developed a sputter over the last month and its getting more frequent. It sounds and feels like its going to stall like all cylanders are not firing. also i smell antifreeze but i dont see a leak. does this sound like antifreeze is getting into the piston causing it to sputter. i have recently added antifreeze caue it was low. both the resivore(empty) and the rad itself just a little low.

other notes if i rev the engine long enough it goes away. doesnt sputter first thing only if i drive a short distance shut it off and start it back up.

It looks to me like a gasket is leaking but i just know if it could be anything else before i get into tearing it down.

thanks
tom