Just an update on my car, I did fix the coolant leak, it was leaking from where the thermostat housing meets the plastic intake. I took it to a few places including a ford dealership, they replaced the rubber o ring and torqued the 2 bolts, still leaking. I didnt know what the heck was going on, I figured if I was going to spend $1000 I should try to fix it myself first. I took the thermostat housing off, and I seen no cracks. I put a rag in the coolant to lower the level by about half an inch. I cleaned the plastic and the metal thermostat housing with brake cleaner, then used a tiny layer of blue silicone sealer. Put it all back together and it don't leak a drop! Something must have got deformed slightly and is out of tolerance. This is my first 4.6 so I don't know! shurg hehe. I replaced the belt, harmonic balancer, idle pulley and belt tensioner. Its happy again!
