GMC Suburban Engine Backfire

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1988 Suburban Poor Performance Sluggish Acceleration...

1988 GMC SUBURBAN

Will Run At Highway Speed Though Not As Well As It Has, The Real Problem Is The Poor Acceleration, Requires Driver To Put Foot To The Floor...

1 ANSWER

Asked by Patrick K.

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Backfire Burning Oil Hard to Start Hesitate Idle Erratic Idle Low Idle Rough Lean Low Power Misfire Not Cranking Over Not Running Oil Leak Overheat Ping Revs Up Runs Hot Runs Rough Sputter Stall While Driving Stall at Idle Surge Vibration

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