2001 Ford Falcon Futura Looses power and shutters when hot

[futura-bloke-AU]

to get some idea of my 2001 falcon futura classic series 11, Ever since i bought it in 2007 I have had one mayjor problem with it. I will be driving and i loose power and then the engine surges or vibrates. first time this happened they replaced the igniton coil however it has done it twice afterwards. i just want to get to the bottom of it. Southern Cross Ford here in Toowoomba are useless and cant see anything wrong with the vehicle when it is put on the computer diagnostic machine. What is happening is once the car seems hot under the hood, mind you the temperature gauge sits on between N and O on NORMAL on the gauge itself. the car just looses power and runs rough causing the car to vibrate, if u turn it off and straight back on it does it again. if you let the car stand for 30-60mins and then start it up it drives perfect and you will be able to drive home. This has now happened three times since August 2007. it happened in august 2007 4 days after i bought the vehicle, then happenened november 2007 and then today. i changed the plugs to NGK laser platinum plugs, putted the bosch motor sports spark plug leads on it 6 months ago and i thought that fixed it, obviously didnt. could it be a air leak around the inlet manifold? i have no idea now, unless this ignition coil is stuffed again. first time it happened the computer diagnostics showed the ignition system at fault. so im still agreeing with that it is the ignition system. cause once car is hot it does it once u let car cool down its ok to drive and u can drive it for months or a year before it happens again.

Have also read other posts saying fuel pump and fuel pump relay. im very confused now as this is an intermittent fault im havin has only happened 3 times in the 2 years I have owned it. I have always letted it cool down for 30-45mins then im able to drive with no probs. then months or weeks later it will do it again.

anyone else had this problem. any ideas, suggestions etc be very helpful. I just wanna get to the bottom of this once and for all.

have read on previous posts could be CRANK ANGLE SENSOR? IGNITION MODULE? MAIN COMPUTER? O2 SENSOR?

This is very frustrating.

what is your opinion on this problem? nay help be greatly appreciated.

Cheers and Beers,
Johno