I have a 2006 Focus 1.6 LX petrol, about 65k miles which we've had since it was about a year old.
It's doing well except last year it started to misfire on one cylinder when I'd just set off for France, and I didn't want to stop so I did about 500+ miles on three cylinders over a week. I did replace the plugs and leads (I think) but that didn't cure it.
When I got back I changed the coil pack and it fixed the permanent misfire. I did expec the car to fail the MOT on emissions as it smells very petrolly, especially when cold, but it passed with no problem.
For months now it misfires a little but only when under load - when revs are low in a gear and I give it some beans. Just a single misfire. It's fine once the revs are up (in any gear) and trundles along quite happily in excess of the max legal speed if asked.
I'm thinking I should probably do something about the misfire, but I'm not sure what. I'm certainly not about to spend a lot of money on it. It isn't due a service on mileage, and I've done less than 10k miles since the incident above so I'd hope that the plugs and leads were OK.
So what would folks recommend?
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