2006 4.4i coolant leak

[audiophool]

Working on a friend's car. Coolant started to leak, lots of steam from under hood. On teardown, the hose joint under the throttle body just fell apart in my hand as I was working around it. Originally thought it was the valley pan seal, but I bridged the two ports on the cylinder heads and the fitting from the expansion tank. Charged the system up with shop air and found a very slow leak around the pressure cap on the tank. Might have gotten lucky on this one.