GMC SIERRA ENGINE MISFIRE

Good Morning. I Have A Fuel Issue I Believe In My Truck Listed Above. It Idles Fine At Start Up. Under Acceleration It Chugs And Backfires...

2004 Gmc 5.3 Misfireing Cyl 1/3/5/7 Smail Like Eggs

1999 Gmc Sierra Z71, 5.3l 105,000 Miles Idles Fine. Runs Smooth Until It Reaches 55 Mph. I Can Maintain A Smooth 55mph, But When I Press...

Stock 6.0 Liter Is Missing, Will Occasionally Die At Slow Speeds (generally Left Turns, Parking, U-turns Etc.) Spark Plugs And Wires Have...

Sometimes My Engine Will Miss And Shake And The Truck Will Not Go Over 40km Per Hour. At The Same Time My Engine Light Will Flash. If I Shut...

I Was Driving My Truck At About 55 Mph. Truck Had A Hesitation Like A Plug Wire Was Pulled, Then Started Running With A Bad Miss Like One...

Okay The Motor And Tranny Have 30000 On Them But When I Start It Up It Starts Up Hard. I Just Put A New Starter In It Last Winter. I Think...

Acts Like Points Bad On Old Car. Really Bad When Cold. Changed Plugs And Wires. Gives Random Misfire Code.

First Starts Run Fine After A Min. Or Two Starts Missing Reads Multipe Misses. New Plugs & Fuel Filter No Help

I Have A 1992 Gmc Z71 5 Speed. Well When I Put It In Frist And Strat Going Thean Shift In Too 2nd My Rpms Strat Jumping And The Engine Goes...