Originally posted by LBVSVT: My hesitation/bucking problem was cracked ceramic on the Autolite plugs. The dealer found it and switched the plugs to Ford, but now (about a month later), I'm starting to get the same symptoms again. I'm gonna check then again in a week or so, but you may want to look closely to ensure you're not having the same issue.
Good luck.
Spark plugs are new (last week). Gap at 40 now it is runing good. Old plugs 2 months ago gap at 54 run good for 1 week. We will see if the new plugs at 40 will run longer then a week or two.
