Check Engine Light due to Water/Coolant in Spark Plug Recesses on Lincoln Navigator

Problem Description and Possible Solution

An illuminated Check Engine Light may be caused by an engine misfire due to water or engine coolant in the spark plug recesses.

Problem Data
RepairPal Verified
Average mileage: 137,571 (90,000–156,000)
9 model years affected: 1998, 1999, 2000, 2001, more2002, 2003, 2006, 2007, 2008
16 people reported this problem
Viewing 1 - 4 of 4 comments
Replaced spark plugs and since then I have to drain water from the spark plug holes. Was both sides but now just the drivers side. Back holes are the worst. Siliconed the wire harness but still occurs. Does the area need to "breathe"? Seems that if that is the problem, high humidity would condensate and drip down in the plug holes. But after hard rains with no driving, the problem occurs. Any ideas?
My car continues to misfire every time there is a rainfall. We found that water filled the spark plug Reservoir number one. We had to actually remove the spark plug stick a towel in the reservoir to dry it out replace the coil boot and this works until the next time it rains