Birkshire Bill wrote:

This isn't what I meant.  The owner is not telling the service manager
anything other than the complaint; ie, misfiring.  What is happening is the
service writer takes a stab at the diagnosis, either with or without his
mechanic's evaluation, and writes up a work order, listing parts to R & R
or adjustments to make or whatever.  Then he has the owner sign the work
order.  The work is performed as written and the owner pays.  Even if the
problem persists, the owner has little or no comeback to the dealer because
the dealer did do the work.  What I suggest is after the service manager
writes up his work order, the owner has him add the phrase "TO FIX THE
PROBLEM OF MISSFIRING (OR WHATEVER).  Then, if it turns out to be a
misdiagnosis on the part of the all-knowing service writer, its his
problem, not the owner's to pay again and again until the problem is fixed
or the owner gives up and trades in his car.  

The idea is to pay for fixing the problem; not to pay for a laundry list of
procedures that don't fix the problem.  If your shop uses an amateurish
shotgun approach of wholesale parts replacement and refuses to commit
itself to a solution on a given work order, then find another shop.  If its
a dealership, complain to Ford.

Let me say hi and also thank everyone in advance for any help given.
Here is the problem.

My father has a 2000 ford taurus.  Car never gave him any problems.
Out of nowhere he now gets a cylinder missfire in cylinger six.  That
is the error given by the computer.  Not that simple though, there is
more.  The car runs fine until it warms up.  When the car is idle, in
either park, neutral, or drive, it starts to chug.  The check engine
light flashes.  As soon as start to move again, the car struggles to
accelerate, but once your moving, all is well again, the car runs
perfectly fine.  Check engine light stays on steady now, until you
stop again, and the cycle repeats.  Just a little helpful information.
The car has been to three different shops, including ford themselves.
The plugs, wires, coils, fuel rail, fuel injector computer and so on
have all been replaced.  The engine was opened up, and the cylinder is
fine, nothing wrong mechanically.  This is absolutely 100 percent an
electrical problem.  So with this said, does anybody know what the
heck this could be?....Ask me questions if you want any more
information.  

With all that information, I will now tell you the the car had an
aftermarket remote car starter installed by a reputable guy that has
installed stuff for a dozen people i know.  The problem started about
one to two months after that.

thanks again
Eric