GMC ENGINE

My Sonoma Runs And Idles Fine. It Has A "rumbling" Backfire (not Particularly Loud) When The Engine Is Decelerating, And When Driving...

On Acceleration, The Engine Will Sometimes Stumble Or Cough Through Carburetor And Sometimes Will Almost Die. For A 454 Dually Truck, This...

The Problem That I Am Having Is The Engine Sputtering. I Will Be Driving On The Freeway And The Engine Acts Like It Loses Power But All...

It Takes Off And Drives Fine, But While Doing Between 45 And 55 When Trying To Increase Speed It Will Spit And Sputter Like Its Not Getting...

I Just Got A Gmc 3500 It Runs Fine At Low Rpms But When I Get In To The Throttle It Starts To Knock Then Sputter. I Adjusted The Valves And...

I Recently Changed Exhaust Manifold, Spark Plugs And Plugwires. Now My Truck Backfires When Reved Up, And Driving Very Slugish And...

When I’m Doing Anywhere From 25 Mph To35 Mph And Around 55 Mph To 70 Mph My Vehicle Has A Vibration And Feels Like It’s Sputtering...

My Chevy Suburban 1500 4x4 And Idols Good. But When Going Down The Road It Spits And Sputters. What Do You Think Is Wrong With It? It Seems...

Idles Smooth But When Giving It Has It Sputters And Will Not Take The Gas Without Cutting Out.

My 1994 Gmc Jimmy Hesitates And Sometimes Just Stalls Out. I Had The Fuel Pump Pressure Tested And The Pressure Held At 55 While Running...