Could factory pre gaped spark plugs cause misfire?
#2
This reply is a combination of opinion and experience.
It is always best to check the plug gap before you install them.
Again in my own opinion and from past experience, I have almost always had better results with genuine Motorcraft spark plugs when installing in Ford products.
It is always best to check the plug gap before you install them.
Again in my own opinion and from past experience, I have almost always had better results with genuine Motorcraft spark plugs when installing in Ford products.
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