Car Problem Reports

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

Lincoln Navigator Problem
10 Reports
Me Too

Model Years Affected: 1998, 1999, 2000, 2001, 2002, 2003

Average Mileage: 144,750 mi (125,000 mi - 155,000 mi)


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

  •  Rookie

    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?

    Flag This
  •  Rookie

    Coolant in spark plug recess.

    Flag This
Ask a Question