Morning all,

I am posting on behalf of my sister, I have been looking at at problem on her 02 plate 1.25 zetec fiesta. I noticed that at high revs in 3rd, 4th and 5th gear there was a loud buzzing sound coming from the engine bay. If I dip the clutch it stops and when I re-engage it returns, unless the revs have dropped enough, i.e dropped to 67 rather than 70. (Its quite funny it starts at 70mph, that's one way of enforcing the speed limit!)

Any ideas at all please, I would appreciate it.

Thanks,
Peter