Fault In 04 Tdci Focus

[swanny1970]

hi guys new to ford ownership , bought a 2004 ford focus tdci , love the car but have a problem with it , driving along and every now and then car will drop in power , glow plug warning light then starts flashing , if i drive on it runs down on power and won't clear itself until i turn off the engine and turn it back on then it runs perfect again for another while ( could be 10 mile could be 100 mile) filters have been changed and its been serviced ford diegnosed blocked filter, when i told them filters have be changed they said its probably injectors and if not that its the injector pump they seemed to be guessing tbh. i can't see how if its fueling , flicking the ignition off an on lets it run ok again . Any ideas and thanks in advance

[artscot79]

most likely is injectors or fuel rail pressure sensor both are common on diesels

[swanny1970]

just noticed it does it after its been sitting idiling or running in heavy traffic at very low speeds for a short period of time

[turbo-rich]

Common fault with tdci engine is injector failing..

Bad design and expensive to replace

[Stoney871]

I'd say pressure sensor too.