Missfires

Asked by Tyler Dec 16, 2019 at 01:09 AM about the 2008 Dodge RAM 1500 SXT Quad Cab LB 4WD

Question type: Maintenance & Repair

I have a 4.7 hemi and I have been experiencing
missfires at random times. I have replaced the
spark plugs, plug wires, coil packs and both
downflow o2 sensors. Same as before with
more horsepower. Any suggestions?

1 Answer
40

Thor308 answered 4 years ago

Test the flow coming out your exhaust. Bad callitic convert or cloged muffler could cause miss fire. Think they have a test on the loan a tool at advance or AutoZone. Egr valve could also be the cause If your kicking o2 sensor codes

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