coolant leak

[timmy]

hey guys, I'm sure this has been covered prior but I cant find anywhere. I seem to be blowing coolant out of my overflow bottle after the truck has been shut down. Doesnt seem to be a whole lot but enough to concern me. I did a head gasket test on it and it showed a minor trace of CO. The truck has never overheated, never even gets that hot. Just wondering if this was a sure sign of headgaskets or hopefully something else. One more thing...with so many doing headgaskets and going to ARP studs, does anyone make a better gasket?

[mschn99]

if its not overheating i would probably be more suspect of the EGR cooler or a restriction in the cooling system, especially when it does it only on shut down. for that matter it could even be as simple as a weak cap.........Marc

Im not sure what year your 6.0 is but there is a recall out on that same issue. I don't have the number right off hand but Ford relized that the full line on the over flow bottle was to high so we put a sticker on there with a new line and suck about a quart or more out to keep it from overflowing.