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jocojohn
Hi, I have a 02 1.8 petrol mondeo that has started to misfire slightly under load, such as at 25 mph in 4th gear. The spark plugs were changed about 6 months ago. The car idles and accelerates fine. Im inclined to think the coil is at fault but a friend thinks it could be the plug leads. There are no fault codes.

Is there any test I can do to pinpoint the problem rather than just replacing parts at random

thanks, John
ppeter7
is this when you put ur foot dwn on throttle some1 has suggested that poss throttle cable to slack there no adjustable to mines the same but fords got to order 1 in specialy as they dont have any in stock.so check slackness of cable on throttle body 1st if to much slack just a thought.
jocojohn
Just an update, tried a new coil pack and all is well.

thanks for the input Peter,

John


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