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What do you think?
I have a 2011 yukon XL. It started misfiring. OBD said it was in 5. We have changed plugs, wires, 2 coils, new battery, and now the Break Booster Sensor. That has helped some. But still misfiring. Had anyone ran in to this issue? What helped? Fuel filter? Any thing else?- bwillis
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- Forum: Engine & Drivetrain
