car is misfiring i changed plugs how do i test or check ignition coils or could it be something else
Thanks
Aug 20, 2010 at 7:10 AM
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DAVE H
CERTIFIED EXPERT
13,384 POSTS
find out which cylider is misfiring .. swap 2 of the plug leads one from misfiring cylinder to a cylinder which is not misfiring .. if misfire swap to new cylinder location you have a bad wire/plug .. if it stays on same cylinder you have a bad coil or it could be an injector