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Random misfire. Infrequent.

309 Views 3 Replies 2 Participants Last post by  Mrmerlin
I very occasionally have a misfire in some of the cylinders and usually always within the first 1000 revolutions (see gap tool screenshot). Last time this happened was maybe a year ago with it repeating very infrequently. The truck will fire, run rough then usually right itself.

What usually causes this ? is it time to replace coils etc?
My l322 only had 170k and is a 2008.
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First get some MAF cleaner and clean the MAFs
if this still occurs THEN, at this miles,
it might be prudent for new plugs and coils
Thanks. Truck is in kms - so with this high mileage still look at coils/plugs if not maf?
yes time for plugs and coils
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