Ok having an issue with my cooling systems tried searching but can't quite find what I'm looking for. New to jeeps just bought a 89 XJ 4.0l and it seems to have an open style radiator with the cap on it but still using the the pressure bottle too. Started leaking at the cap on the radiator last night after just a 10 min. drive, didn't seem to be running to hot, around 210. Is it time to pick one system open or closed or should I just get a higher pressure cap think its a 16 psi on there now. Thanks