I have a 2006 forester xt and today I decided to change my leaking oil cooler O-Ring since it looked simple to do on my own. After watching all the videos on youtube it looked simple enough. So when I pulled the coolant line off it started leaking coolant from the oil cooler but wouldnt stop, looked around for some answers but no one had an answer as to way coolant was coming out. How do I block it from leaking, since I want to take the whole oil cooler off instead of pulling it down and risk not having the o ring seat right. So any tips will be very helpful right now.