I noticed i had a coolant leak last week and just got around to see where it is coming from. Thought it might have been the water pump gasket or something but turned out to be another gasket. It is leaking right below the egr. How would i go about fixing this. Stop leak or replace the gasket? I know replacing the gasket would be best but which gasket is it and what all do i have to take apart to get to it?