Re: 94 Mercury Grand Marque, same as Crown Vic fails to start.
On Tue, 26 Apr 2005 00:54:07 GMT, "Grey Beard"
>Every couple of days engine fails to start. No spark from either
>electronic coil. Blamed the $200 Ignition Control Module, as car will
>start if module is unplugged for 10 minutes, then plugged back in. Module
>replacement did not repair the problem. Still appears to be losing power
>to module, or out of module. Oil ok! In Park OK! What else will do
Don't forget the cheap things in that circuit like the crank
and cam position sensors. Since it appears to be
intermittent (biggest four letter word in the dictionary),
it may also be a wire harness problem. The wiggle test at
every connection while connected to an anolog meter or test
light may be in order. If you do this, be sure to
disconnect the harness from the PCM to prevent any problems
there. Unplugging and reconnecting may be a tip on where
the problem is located.