2001 Mercury Marquis fails to start when I least expect it; why? on 2001 Mercury Grand Marquis

Tried replacing coils. Motor turns over, but will not start. This will happen about every 3 or 4 days.

by in Chickamauga, GA on February 02, 2013
2 answers
ANSWER by on February 02, 2013
when it doesnt start check for spark and fuel pressure
ANSWER by on February 11, 2013
inspect the crank sensor wiring for any chafed section.And retrieve dtcs.

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