Well, the Autolite double platinum that I have in my hand is not the same as the Motorcraft AWSF 32PP that I put in. The Motorcraft has a platinum bump on the center of the L part and the Autolite is simply platinum plated.
The Ford parts guy insisted that Motorcraft made that plug and that they were getting a lot of poor running cars that all they did to fix them was replace the Autolites with Motorcraft plugs. This man is as honest as they come.
After driving my sweet-running car now for a few days, all I can say is if you change your plugs and your car runs like s
t, then it is most likely the plugs. (But obviously could also be the wires).
My symptoms were a lack of low end power and intermittent stumbling. The stumble occurred going up hills in overdrive or even starting off from a stop sign. It is especially noticeable when the air conditioner is on. There were no codes or CEL.
I will be using Motorcraft parts for things like thermostats and spark plugs from now on. The plugs were each $3 Canadian more, but it sure is nice to drive a car that feels brand new.
