Almost the first thing I do with running faults on diesels, especially hesitation, cutting out or low pressure DTC's, is check when the fuel filter was last changed and if there is any doubt fit a new one, it's surprising how often this sorts the problem.

I think this is a problem with the modern extended service intervals which were only brought in to satisfy the fleet market.


I'm as guilty as the next man for jumping in too deep sometimes without first checking the basics.


I must admit though the fuel filter wouldn't have been my first port of call on this one, maybe a pressure test but that probably wouldn,t have shown much unless under load, so fair play for cracking it.