I have a 2004 Mazda 6s Wagon 3.0 v6 blowing coolant out of the front center cylinder when I removed the spark plug to check for spark. I started with a bad alternator, had it replaced and took about 6 hours to do, then discovered a no spark problem which turned out to be a bad crank position sensor, replaced it and a weak coolant temp sensor and have good spark now, but the car still wouldn't start, so I pulled the front three spark plugs to see if I could tell if fuel was being delivered to those cylinders. Yes, I smell fuel strongly when I roll the engine over, but I also have coolant blowing out of the center cylinder. Yes I know this is bad, but how bad? I mean is it possible that it's just an intake gasket like on my old chevy truck? or on this Mazda is this going to be a head gasket or maybe even a crack in the head or engine? Anyone had this problem before ? Let me hear your thoughts please. Also, I can't seem to find anyone willing to do a head job on a Mazda in my area, so I'm kind of stuck now.