Focus Glow Plug Light Flashing & Cut Out on Motorway
Focus 1.8 TDCI 115PS Durateq engine, 67k, fully serviced, no significant issues until this.
Car has cut out on Motorway 4 occasions in two days over only about 30 miles (every occasion between 50mph & 70). Each time, glow plug light flashed and lost all throttle response. Luckily I've been able to get to hard shoulder on each occasion. Car won't restart immediately, turns over but doesn't 'fire up', glow plug light flashes again. After 5-10 minutes restarts as if nothing has happened.
Taken to local garage who fitted new pedal assembly as fly by wire suspected faulty. This didn't help - same problem occurred twice afterwards. Fuel filter was also checked for water and crankshaft sensor inspected for dirt etc (was spotless). No faults found on diagnostics either by this garage or AA.
Any help or ideas on what may be causing this would be greatly appreciated, I fear I'll have to try a main dealer and spend large amounts of my savings..