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millsydt

1.25 mk4 issues

6 posts in this topic

i got a fiesta 1.25 mk4 and it misfires a bit at high revs but this gets worse when running low on fuel have anyone else experienced this??

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its weird because its fine driving normally it only gets it high revs say if u go down a gear cleaned the inlet yesterday and hasnt helped really thought it be a bit of carbon in the intake :(

Possibly coilpack issues

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When was it last serviced? Could be plugs leads coilpack, injectors, fuel pump

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On mine it was the coil pack. I changed the plugs and HT leads first, which improved things a little, and then once I did the coil pack it ran sweetly again. Seems to be very common with Zetec engines of a certain age, from what I read on the internet.

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ahh cheers man its ok when driving normally but at higher revs it struggles its done 76000 mile been looked after though think it needs a cambelt change soon though il have a look at it this weekend shame really because after 4000 rpm the zetec comes alive and thats when sometimes it hestitates

On mine it was the coil pack. I changed the plugs and HT leads first, which improved things a little, and then once I did the coil pack it ran sweetly again. Seems to be very common with Zetec engines of a certain age, from what I read on the internet.

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