Ford Focus Misfire

I have a 1999 1.8 Zetec with a similar problem. It is becoming more regular. The speedometer will drop to zero intermitently whilst travelling at normal speed, and when I slow down the engine will cut. Occassionly the digital mileage display will become a series of dashes and the tyre tracking light will display.

I too have had this looked at and the garage have said that they cannot find any problem.

If you get any answers please let me know. snipped-for-privacy@blueyonder.co.uk . Cheers

Kaiser

Andrew,

I assume you changed your high tension wires. I saw this problem in a Miata and like most cars, it has the plugs deep in the head and a long wire to get to it. In this case, you could see where the spark was jumping through the plastic insulator and to the head. New wires cured it in this car. It sounds like the problems is in your secondary ignition system and when you need the power, the voltage isn't there. An ignition scope may help you but I would start with new plugs and wires. Make sure ther wires are fully on the plugs too. It sounds like ignition vs fuel and I would think that a fuel injection problem - too lean mixture to fire under heavy load - would set a check engine light but maybe not.

Gary

Kaiser

I think your problem is different. Your fault is a very common early Focus one. It is caused by progressive failure of the Vehicle Speed Sensor. If you search in this NG using Google Groups you will find loads of info to help you.

HTH

Chris.

Cheers Chris,

I've found the thread. I can now begin to get it sorted. It's a real pain.

Kaiser

This may be the same problem i was haven, I though it was a misfire, and though it was the EGR was gloged. Very confusen. It would run great some times, and other times run like shit. Stalling out. burning fuel ( smell from the cat) so i figured it was a bad spark plug. Well i got to work and it cut off on me. So i started up and messing around the hood.. and well the

""Postive Battery cable"" was well in another word shitty.

It was arching and metaling the battery little by little, so i replace the Terminal end and walla its good. Check the negative as well.. there are recalls on them

Andrew: Im having same symptoms.2000FF with 80K miles. yes I changed wires and plugs and have had all recall work done.Am waiting to stall out,have come close.Computer diagnosis is negative.