'05 1.4l Ford Fiesta, 20k miles, - Engine tinckling? Pre-ignition?

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Wed 6 Aug 2014 16:33
'05 1.4l Ford Fiesta, 20k miles, - Engine tinckling? Pre-ignition? - Old Codger

Had this car for 6 years and last 6 months have experienced a very, almost inaudable, quiet 'tinkling', like pre-ignition of old. Happens only when high gear, low speed, throttle 'tickled'. Serviced recently and although advised of problem they didn't find anything. Ditched supermarket petrol for Shell, no difference. Could of course move down a gear but what's the problem? Local driving 5 miles and 2 x 200 mile m'way blast 2x's a year, could this be the problem?

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Wed 6 Aug 2014 16:44
'05 1.4l Ford Fiesta, 20k miles, - Engine tinckling? Pre-ignition? - skidpan

Leaking exhaust manifold gasket or slight exhaust leak.

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Wed 6 Aug 2014 21:15
'05 1.4l Ford Fiesta, 20k miles, - Engine tinckling? Pre-ignition? - bathtub tom

What about the knock sensor?

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Wed 6 Aug 2014 23:22
'05 1.4l Ford Fiesta, 20k miles, - Engine tinckling? Pre-ignition? - Big John

Have you tried a higher octane fuel such as Shell Vpower or Tesco greenenergy

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Fri 8 Aug 2014 16:41
'05 1.4l Ford Fiesta, 20k miles, - Engine tinckling? Pre-ignition? - Old Codger

Have you tried a higher octane fuel such as Shell Vpower or Tesco greenenergy

Shall try the Shell exclusively as Tesco not hereabouts. Although saying that have the half tank of Shell in now and no difference. Maybe changing down is the answer if no other solution. As I do very little mileage could that be the problem? Or are modern petrol/oils so good?

Thanks anyway.

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Fri 8 Aug 2014 20:49
'05 1.4l Ford Fiesta, 20k miles, - Engine tinckling? Pre-ignition? - Cyd

Could be coking up due to the short journeys and that could be your root cause. Especially if you use very low revs.

Use VPower for a few tanks and try a couple of italian tunes. Try a few more revs.

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