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zetec s misfire

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Old 30-03-2008, 10:11 AM
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rsfido_1989
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Default zetec s misfire

hey all... well since the snow my cars been having problems.. i drove 180 miles in the snow and it was fine but on the a1 nearly home i put my foot down off the round about and lost all power.. was running but had a really bad miss... dropped the gears till i could accelerate and floored it to try beat the miss and it went.. was bit iffy everytime i got to accelerate from low speed but after a while it was fine .. checked the ht leads are all on fine and i did fit new plugs a week ago (since the plugs it has developed this trouble)... but today i went out to start her.. and for some reason it took ages to start.. when it did it was ticking over really rough and then driving it had a really bad miss again.. i took her round the block and checked the leads again .. once she warmed up it was fine.. but what could be causing this?

cheers darryl
Old 30-03-2008, 04:09 PM
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Wardy257
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Unplug the MAF and see if she gets better? If so clean the MAF.
Old 30-03-2008, 04:11 PM
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RichieST
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still got the old plugs? try sticking them back in. I'd suggest coilpack could be faulty.

Rich
Old 30-03-2008, 06:20 PM
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rsfido_1989
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Originally Posted by Wardy257
Unplug the MAF and see if she gets better? If so clean the MAF.
whats the maf?
Old 02-04-2008, 09:49 PM
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JamesR1
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Check Coilpack, leads, plugs.. Mass Air Flow sensor.
Zetec-s is that a fiesta? if so its on the exit of the air box.
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