Kenco wrote:Hi guy's, sorry for the delay.... I've serviced the car, oil change, oil filter, air filter and fuel filter. I thought the car ran fine before but what a difference after replacing fuel filter.
The surge issue tends to happen when you are say coming to a roundabout, slowing down (just touching the brake) and changing from 4th into 3rd. Continuing on through the roundabout at maybe 20-25mph, it will happily take you on its merry way without needing to touch the accelerater at all, staying at the same speed.
I've had diesels before and my previous car was a fiesta diesel.... I've never had this happen on any of them. It's strange and could very well be my driving lol. It only ever seems to happen after lightly applying the brakes though. I've noticed it happen in 3rd,4th and 5th gears. If I dip the clutch, there is no revving of the engine and sometimes releasing the clutch it will continue on still without accelerater.
Thanks for the vid, I'm not sure my buzzing is the same or as bad. It only happens on turning the ignition on,sometimes louder than others and sometimes crackly. It does go off by itself after a short while though (seconds). I'm guessing this is normal, it's just different sounding on occasions.
Think I can live with the pedal click, surge and buzz as the car drives great.
Thanks again guy's, appreciate the help.
that sounds like the sort of speed where the engine will surge by itself, was your fiesta as powerful and torquey as the C3 though, as a lower torque diesel engine will not have the same surging effect, for example the 1.4 hdi 8v does not surge particularly, it will chug and hop until you change down or possibly stall, the 90hp 1.6 hdi also does the same as the 1.4 8v