Help me diagnose a coolant leak?

[spotdog14]

So yesterday I discovered a coolant leak on my 2008 Expedition. I do not 'think' that it is a blow head gasket as I do not have any symptoms (loss of power, not starting, milky oil). All the coolant seems to be located on the passenger side and pooling in the spark plug wells.

Any ideas on what I should check? Blocked heater core? Leaking supply line?

 

[GAINMOB]

both of those...check the entire coolant system flow to see what it might be...wipe everything clean if u can and see if u can find it dripping

 

[spotdog14]

both of those...check the entire coolant system flow to see what it might be...wipe everything clean if u can and see if u can find it dripping

Turns out it was the T connector going to the heater core.

 

[GAINMOB]

cool...good fine

 

[JollyRoger]

Good to hear...easy fix. Make sure you dry out the spark plug wells thoroughly. Causes havoc with the COP's.