Spark plug #1 blew out on 1998 Cadillac DeVille

Heard a small ticking noise coming from the back end of the engine. Spark plug #1 blew out. Anyone know what the problem may be?

by in Merrimac, MA on July 28, 2010
1 answer 1 comment
ANSWER by on July 28, 2010
Has the whole spark plug blown out or just the porcelain part. I remember Champion Spark plugs ten years ago use to fail that way. If the whole plug blew out under combustion pressure then the threads in the cylinder head are probably stripped out and need to be repaired using a helicoil.
COMMENT by on July 29, 2010
Just the porcelain part. Definitely, need to replace the spark plug which will be done but, is there any way to know what caused this and anything we should do to avoid this from happening again?

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