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P0300 code
During a family road trip my check engine light came on so I ran the code and it came back as P0300 random misfire. I filled up at a shady place so I figured maybe I got some water in my tank. Ran a can of sea foam through it and it cleared it but came back shortly after.
Truck couldn't possibly be running any better. No missing, sputtering etc.
From what I read this code is hard to diagnose because it doesn't give you a specific cylinder as a starting point. I hate to just start throwing parts at a truck that runs so good. Anyone have any tips....
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1969 GMC K2500
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