GMC Sierra Engine Poor Mileage
BackfireBuckBurning OilClickCompressionCoolant In OilDamagedGasHard to StartHesitateIdle ErraticIdle HighIdle LowIdle RoughKnockLeanLocked UpLow PowerMisfireNoiseNot Cranking OverNot RunningOil LeakOverheatPoor MileageRevs UpRichRoarRuns ColdRuns HotRuns RoughShakesSmellSputterStall While DrivingStall at IdleSurgeVacuum LeakVibrationWill not shut offWorn
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