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Too many possible issues
I have a 2009 gmc Yukon Denali 6.2. I was at a gas station filling up, cranked up puff of white smoke and truck started shaking. The parts store was down the road so I got codes read, misfires #7 and #4. Replaced all plugs,all wires and only replaced two coil packs on misfire cylinders. Still...- TmDreko
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- Replies: 6
- Forum: Engine & Drivetrain
