Thanks Kara,I had realised my mistake but did not know how to rectify.
Regards Neil
Kara,
Had the F since last March,went out in it today with the hood UP for the first time!
Regards Neil
I think the key thing is the 10 miles. What changes at ten miles?
It could very well be the heat from the engine causing a HT component to breakdown.
Also remember that the engine changes state at around this point due to the engine warming up. The coolant temp sensor sends a signal to the ECU which basically tells the system that the engine has warmed up. This changes the fuelling etc from cold start to warm engine. One of 2 things could be happening. The temp sensor is not reporting that the engine is to temp and the engine still thinks it is warming up. This would result in the engine overfueling and caould cause the engine to run roughly. You could also have a fuel problem where once it switches to warm engine running you are getting insufficient fuel, due to the injectors being dirty or th fuel filter etc.
To be honest, it could be a lot of things, but the clue is the 10 miles.
If it was due to HGF etc I would suspect it to run roughly all the time, even when the engine is cold.
Rough running could also be down to a damaged cat, if the bodgers damaged that too, but I would suspect lack of power etc.