2000 Sierra 2500 6.0l engine - Random Misfires

wow thats alot of reply's, i could not read all of them, three major issues with this engine,if you have a k&n filter oil gets on the air flow sensor and ruins it also cats plug easly with missfires, valve guides can also cause these random misfires under loads..

Reply to
glovemax5
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Problem sloved... I performed a CKP Learn Test and the issue went away...

Reply to
DRIO

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