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Truck was missing made funny chirping noise was diagnosed as #7 cylinder miss going to start with new plugs Truck has high mileage.
What plugs do you recommend
copper plugs are always good. sounds like the plenum gasket might be starting to cause you issues. i got NGK G power plugs in my 318 magnum and have had them in for about 2 years and 20,000 mile and so far they have been working pretty good but i have not removed them to check them lately.
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