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05/08/2021 10:43 am
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Hey Scotty I have a 01 gmc Yukon I still can't figure out why my truck has a random misfire I change spark plugs coils and wires changed the knock sensors crankshaft sensor and cam shaft sensor but she does have 315000 miles on her but motor been replaced and tranny been replaced over time
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05/08/2021 7:20 pm
You can misfires from many things but the main thing is either the ignition system isn't working right or the fuel injection system and I know it's generally it's a problem with the fuel injection system causing misfires have that checked first
