GMC Other Engine Runs Rough

After Driving For Approximately 30 Minutes The Car Begins To Shift Roughly At 10 Miles Per Hour And Again At 20 Miles Per Hour. I Recently...

Where To Start. I've Recently Rebuilt Transmission And Prior To Doing So I Had A Major Oil Leak And The Radiator Stays At Only 3/4 Compacity...

I Have A 1995 Gmc 1ton Vandura 5.7 Liter, Recently I Changed The Spark Plugs & Wires. After Doing This I Started The Van And It Stareted...

I Have A 1989 Gmc Pickup With A 350 And Tbi Carb. The Motor Runs Good At An Idle But Runs Rough When The Throttle Is Pressed. Coudl You...