fiestaturbo.com

[Farooq]

The fiesta xr2i 8v sounds like a scooby when reved. The timming belt was replaced not long ago could it be related. The car also recieved a full service inlcuding plugs.

Anyone shed some light. Can idles perfect.

[Misterk]

Sounds like it could only be firing on three cylinders, could be HT leads

[reithy]

I'd concur sounds like leads or plugs. Mine did it on a zetec and was the leads

[Farooq]

new plugs buddy, il clean up leads, and connectors and earth. cars sat for a year, so gave it a service. Could a f**cked ignition relay contribute to the problem?

[reithy]

I had to buy a brand new set of leads and it solved mine

[mikeymikeyp]

if its firing okay id pull out the lifters and check the bottom of them for holes

[Farooq]

Brand new lifters

[jammy86]

IGN coil pack or leads. My other halfs Ka did this a while back. Revs OK under no load, sounds like a scooby when you drive it.

[jayrs]

My RS started to sound like a scooby on the way home from ford fair some years back, turned out a lobe had worn out on my Kent cam, pi$$ed me right off seeing as it hadn't don't a thousand miles.

Fitted new cam and lifters to sort mine, might be worth a check on the lobes around pot 3

Other than that as what's been said, check leads and plugs, could maybe even have a injector at fault