Asked by Mar 16, 2017 at 04:21 PM about the 2000 Mercury Grand Marquis GS

Question type: Maintenance & Repair

Why does my number 7 spark plug keep
blowing out on my 2000 grand marquis?

4 Answers

34,185 - you can look up fixes for this with helicoil repair kits.


The head casting may be thin at the #7 plug.


This article is worth reading ---- spark-plug-blow-out-solved/


DO NOT use a helicoil. Use a Timesert which is the only Ford approved repair.

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