GMC ENGINE RUNS ROUGH

About 8 Months Ago, My Check Engine Soon Light Came On With The Code "manufacturer Control Transmission". I Had It Checked Out, Nothing...

After The Car Sits For Any Length Of Time And Is Started Up, The Engine Runs Smoothly. When Placed In Drive, And With Moderate...

Catalytic Converters Have Been Gutted Before I Got The Truck Not Showing Check Engine Light But Getting Fuel System Lean Bank 1 An Bank 2....

The Vehicle Listed Above Is An Xl Model. It Runs Rough When Cold Like It Has A Bad Misfire Smooths Out When Warmed Up And Engine Pulls Down...

While Driving My Engine Started Running Rough, It Had Been Fine Until This Time. Check Engine Light Came On, And Would Flash When You...