Originally posted by Mr. Ed:
i have autolite double plats and still experience bucking on the duratec...any suggestions?
In my Zetec it WAS the Autolite double platinums which caused the bucking/missing. I put in the fine-wire Motorcraft OE plugs yesterday and the problem disappeared. The Autolite have a much wider wire on the tip than the Motorcrafts. My car ran like a watch until I replaced the original plugs with the Autolites. Maybe Autolite has a fine wire low resistance plug, I dunno. In fact I put in 2 sets, the first lasted less than 2 weeks before the bucking started, but looking back the weather was cooler and I didn't use my a/c. Which was when the bucking started, after I turned the a/c on and it started, just once in awhile here and there, at idle, on the freeway, but it got progressively worse. I thought I had a bad plug, so I put in another set of Autolite double platinums and 3 days later the bucking returned. So I talked and talked to the good folks here at CEG and I called Art at Landmark Ford in Tigard Ore. He's the parts guy there and was very willing to help, which he did immensely. He told me that you have to have a very specific plug in my Zetec (and I'll bet the Duratec too) because the plugs will still fire with a low voltage charge from the ignition system. So when I recalled that it ran fine at WOT, when there was lots of charge and ran like crap at idle and under light throttle loads when there was not much electricity going to the plugs. So it all made sense all of a sudden with the help of another CEG'er that was having the same problem. He went to OE plugs just out of desperation. SO after I talked to Art at Landmark Ford it became crystal clear. Ken 99 SE Silver Frost Zetec ATX
Ken, 99 Silver Frost SE Zetec Atx, polished alloys, Kumho's, Pioneer hi power CD/AM/FM. Factory spoiler (added) Audi side lites, Borla stainless steel muff. Stolen, recovered in pieces. Looking for another Tour, preferably V6, 5 speed.
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