Ford Fusion 1.6 - Misfire cylinder 4

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Sun 22 Jan 2017 18:26
Ford Fusion 1.6 - Misfire cylinder 4 - George Hathaway

I have a misfire on cylinder 4 any ideas

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Sun 22 Jan 2017 18:37
Ford Fusion 1.6 - Misfire cylinder 4 - elekie&a/c doctor

Petrol ?diesel? age of car?

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Sun 22 Jan 2017 18:58
Ford Fusion 1.6 - Misfire cylinder 4 - George Hathaway

It's petrol 1.6 2004 hope you can help

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Sun 22 Jan 2017 19:36
Ford Fusion 1.6 - Misfire cylinder 4 - SLO76
Coil packs are a very common failure on these engines and the most likely candidate. Not expensive (around £50 plus vat for a genuine Ford part) and not much labour involved in fitting but don't drive it any distance as the unburnt fuel will not do the catalyst any favours.
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Sun 22 Jan 2017 19:49
Ford Fusion 1.6 - Misfire cylinder 4 - George Hathaway

Ok cheers I'll try that first many thanks

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Sun 22 Jan 2017 19:36
Ford Fusion 1.6 - Misfire cylinder 4 - elekie&a/c doctor

Usual causes of misfire on these engines are spark plug,ht leads or coil pack.Have you checked engine oil level.?

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Sun 22 Jan 2017 20:41
Ford Fusion 1.6 - Misfire cylinder 4 - George Hathaway

no i havent could this be part of the problem

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Mon 23 Jan 2017 08:28
Ford Fusion 1.6 - Misfire cylinder 4 - skidpan

The ignition on these engines is wasted spark which means if there is a misfire on no 4 there is also a misfire on No 1. So if there is no misfire on No. 1 you do not have an ignition issue and replacing the coil pack, plugs, leads etc would be a waste of money.

So before you do anything carefully check if the misfire is present on both 1 & 4.

Edited by skidpan on 23/01/2017 at 08:29

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Mon 23 Jan 2017 08:59
Ford Fusion 1.6 - Misfire cylinder 4 - George Hathaway

Without sounding stupid how do I do this please

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Mon 23 Jan 2017 09:09
Ford Fusion 1.6 - Misfire cylinder 4 - skidpan

Without sounding stupid how do I do this please

Check the exhaust temp for each cylinder. A pair of low ones i.e 1 & 4 or 2 & 3 indicate an ignition fault. A single low one indicates which cylinder has the issue. It could be fueling or something internal such as a faulty valve.

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