on the way to work the front drivers side spark plug blew out .. freaked me out threw a spare in eased back home. current plugs in from previous owner were motorcraft platinum agsf 34 fm not knowing if thats a suitable replacement went and purchased 6 autolite app 5144 for my own piece of mind..
went ahead and threw them in out of the box and have some stuttering at wot normal granny driving seems fine and slight miss at idle so i have a gapper and about to pull em and fix gap at .054 which is stock .should that number be altered? car is a 90 aod..
mostly stock with cold air intake no cats no resonator
no hesitation or stutter before new plugs so im hoping its just a gap issue....
went ahead and threw them in out of the box and have some stuttering at wot normal granny driving seems fine and slight miss at idle so i have a gapper and about to pull em and fix gap at .054 which is stock .should that number be altered? car is a 90 aod..
mostly stock with cold air intake no cats no resonator
no hesitation or stutter before new plugs so im hoping its just a gap issue....
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