"_TWC_Wingnut" <greg_glynn@data3.com.au> wrote in message

It's supposed to stay in top gear for as long as it can, to provide good
economy. It will only change down with the engine load demands, and will
coast in top all the time.

I've seen it a few times, with this model Falcon and some others.

Most of the time it's fuel pressure, particularly if the tank isn't full
under hard braking. The pickup can become uncovered for a brief period
that's long enough for the line to the injectors to run dry, and the engine
stalls. Occasionally, the pump's pressure can be a bit on the low side, and
it'll have a hissy every now and then, particularly if the filter isn't
clean, or the ECU can be a tad slow updating the engine's rpm drop when you
stop suddenly.

Suffice to say, it's something you'd have to look deeply for to find the
*exact* fault, and unless it's happening every time you stop the car I
wouldn't be overly concerned.

The short answer is that it's highly unlikely to be an auto fault.

Regards,
Noddy.

It is/was probably your idle speed motor with sits on top of the throttle
body. You will probably find that when the vehicle is under load (eg air con
on, turning the steering wheel, changing into gear, etc) the vehicle's revs
will become eratic and/or drop.

Have the idle speed motor (can also be called: throttle by-pass valve, idle
speed sensor) checked out before you fork out big dollars to have the
gearbox checked and pulled apart.