Misfiring - Coilpack?

[leeds2592]

Hi,

Asked about this a while back but its got progressively worse for some reason. Anyway, I've noticed that my car starts to judder when driving in any gear. Sometimes it happens after driving for two minutes, sometimes its when I've had the car over 3500 revs :S

From when I last asked I got the impression it was misfiring so the coilpack could be the culprit as this seems to be a familiar problem for 1.2's. I know they aren't that much to buy but how easy are they to fit?

Also, if it isn't the coilpack is there anything else it could be?

Thanks in advance

 

[Curtis!]

Peasy to fit for anyone with an IQ above 0. Pull like hell on the plugs, not on the wire though!, they just pull straight out. 3 Torx screws on the box and one clip in wire, and it's off.

No idea on the misfire thing but poss spark plugs, mine turned out to be like this so; http://www.cliosport.net/forum/showthread.php?538121-Spark-Plug-time!&highlight=

 

[leeds2592]

Nice one, I'll change the spark plugs first then replace the coilpack if that doesn't sort it.

Is one spark plug just as good as the next or are there some better than others? Sorry for the basic questions, I know bugger all about engines

 

[Curtis!]

Spark plugs for a set cost me £12.80 iirc from EuroCarParts for the Bosch ones. Coil pack was £24.

I think the NGK ones are better than the Bosch, but for a 1.2 you won't really see much difference I would have thought. Me neither so don't quote me! lol.