Hi there you knowledgeable lot....

My 2003 Ford Focus started playing up yesterday. Under idle its shaking around like a jelly baby doing cold turkey. There is a severe lack of power under load and it drives like a tractor, vibrating considerably. There is also the odd backfire and a bit of a pong coming from the exhaust. To me it seems like a misfire, and based on internet reports im suspecting the coil pack needs replacing.

Ive read that this is a common fault, but wondered if anyone else has experience of this or knows of any gotchas. Also, should i replace the plugs and leads at the same time? Ive read that problems in this area can spread to the leads and plugs and then re-short out the new coil pack if you dont change the whole lot.

Ta muchly

Mark

 

sounds like the coil pack to me.

mine went like that felt like it was running on 2 cylinders.

very easy to replace.

 

My wifes 2002 Focus did the same thing - although the engine management light cam on also. I called the AA as I was away from home at the time - the AA man said it was so common he kept a coil pack in stock in his van. 5 minutes to fit and all sorted.

 

cheers people. I'll get hold of a coil pack asap.

 

pull the leads off and one wont make a difference, that's the dodgy one