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2018 5.3 silverado misfire issues
Thanks for all your help guys i found the problem ended up being a vacuum leak and a bad spark plug on cylinder 4 not sure why scanner kept telling me it had a misfire on cylinder 8 but problem was solved- abaeza135330
- Post #9
- Forum: Engine & Drivetrain
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2018 5.3 silverado misfire issues
I swapped it out with number one and spark is really strong got zapped while checking it even- abaeza135330
- Post #3
- Forum: Engine & Drivetrain
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2018 5.3 silverado misfire issues
I have 2018 5.3 silverado, its been giving me code p0308 i already put in new injectors new high pressure fuel pump, and spark plugs and wires. Code keeps comming on and truck is really rough at idle and sputters when i floor it. Any suggestions out there?- abaeza135330
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- Replies: 8
- Forum: Engine & Drivetrain
