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Re: misfires across all cylinders but runs fine
Posted to Technical Discussion Forum on 12/22/2023 1 Reply

A lot of our fleet consists of E series chassis with 6.8L engines. We found that the platinum spark plugs wear out ( Huge Gap) around 50,000 miles. We figure it is all the hours of idleing that they do.

We find that the plug boots will stick to the spark plu... Login to read more.

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