2011 ecoboost engine ossue
#11
King Hater
CAC = Intercooler. Make sure the plugs were gapped to .030 and they used the ford SP534's. Also make sure they torqued them properly as they are super easy to crack.
#12
Senior Member
You probably ingested moisture its a common issue. First would be plugs, second drilling the hole, third possible coil or catalytic converter replacement if the moisture fried them.