GMC Jimmy Engine Misfire

P0301-cylinder 1 Misfire Detected. I Can't Find The Misfire.

Ok Here's The Back Story, My Aunt Got This Truck From A Friend Who Took It To The Dealer To Have It Checked Before Giving It To Her, And The...

I Have Recently Bought Three Vehicles In The Last Two Months The First Two Are Completely Dead In The Water The Third Is My Jimmy And The...

Hey, My Car Has Been Running Sluggish, Acting Like It Wants To Stall And Having No Pep. I Gave It A Tune Up, Plugs, Wirers, Oil Change, But...

Just Replaced Spider Injectors With The Upgraded Injectors Can Still Feel A Slight Misfire At Idle And While Driving I'm Getting...

Hello, I Am At My Wits End Tearing My Hair Out Over This. Been A Mechanic For Quite A Few Years Now But I Cant Seem To Figure This One Out....

My Truck Runs Rough And Emission Engine Code P0301 Indicates A Misfire In Cylinder 1. Erg Valve Is Cleaned And Pvc Valve Is Good. Mass Air...

If I Stop And Turn Off The Engine And Restart It Will Be Fine For Awhile. It Has Progressively Gotten Worse. I Replaced The Fuel Pump...

Water Comes Out Of The Engine - I've Replaced The Thermostat On Numerous Occasions And Each Time The Engine Overheats. I've Replaced The...

4.3 With 197,000 Km. I Had The Tranny Rebuilt In Dec. Had Code 0300-multiple Misfire. Replaced Plugs, Cap And Rotor O2 Sensor, Catalytic...