1don MSN
Why Do Spark Plugs Wear Out?
Engine behavior changes as spark plugs wear, with symptoms like misfires and rough idling. But what causes them to wear down ...
That's the standard repair service on the recent Ford V8s that blow out spark plugs. <BR><BR><BR><BR>Ok, I kid, I kid. It's only standard when the shop can't sublet the head out to a machine shop.
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