My 2002 Mondeo 2.0 TDCI 130bhp had the following problem:
Occasional loss of power while driving (flashing glow plug light while coasting to a stop)
Sometimes starts first time after power loss
Sometimes it could take 5 to 10 minutes for it to start
If it doesn't start then the glow plug light will be flashing
I read various forums on the internet, most of which pointed to a fault with Camshaft Position Sensor. There were many suggestions like:
Injector Control Unit (ICU) problem
Change Fuel Filter and Pump
Faulty Crankshaft Position Sensor
Faulty Camshaft Position Sensor
I decided to change the Camshaft Position Sensor as this had solved many similar problems, and was the cheapest option. I purchased it from a Ford Dealer for £18.50. Black sensors were faulty ones and should be replaced with grey ones as a precaution, even if the problem doesn't exist. It can be very dangerous if the car loses power on a round about, as the steering gets really hard. Replacing the sensor has fixed the problem, and here are the instruction on how I did it:
Please remember to disconnect the battery, and let me know if you need the radio codes.
Location of Camshaft Position Sensor:
Unscrew the bolt and pull the old sensor out.
Black one is the faulty one
I couldn't find any easy to follow instruction on the internet so decided to create some. Hope it is clear. Please let me know if you need more information.