I have a 2009 (last of previous model) 1.8 TDCI Focus. I bought it new and it has 40,000 miles covered.
Driving, usually at a constant speed on the motorway, it can give an instantaneous and quite violent misfire that lasts for a split second. It's as if the engine switched off for 1 millisecond and back on again. Having happened, it might not happen again for the next 60 miles or so. On short journeys about town I never notice it, only always on a motorway journey but not always.
No other symptoms, no lights or codes and no loss of performance.
I have changed the fuel filter a number of times (3 times over the last 12,000 miles) hoping to cure the issue but no good. This is an expensive practice as Fords charge 48 euro for a filter element, i fit it myself.
Have any of you experienced this issue, it's hardly normal behaviour.. is it ?
TimtyMember Since 16 Dec 2012
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Focus 1.8 tdci Ghia 2009
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05 Mar 2013 - 23:34