GMC SIERRA ENGINE

2005 Gmc 2500hd Duramax. Have Had Injectors Replaced And A New Ptcm Installed Less Than 5000 Miles Ago. Started Heavy Smoke. From The Day...

In City Driving My Pu Truck Uses No Oil, But In Hwy. Driving It Uses Lots. Don't Think It's Burning It. Could I Have Bad Gasket Somewhere?

My Truck Started Missing While Driving Home, Eventually Not Responding To The Accelerator And Finally Turning Off As I Pulled Into A...

Where Would You Cut At To Straight Pipe And If Straight Pipe What To Do With The 02 Sensor?

Number 5 Cylinder Plug Fouls Out Uses Oil Is Oil Fouled

I Swap Motors Now It Runs Rough And Bout 30 When Ped On Floor What To Do

What Does A Diagnostic Test Result Of "fuel To Rich" Mean? How Do We Fix The Problem? We've Changed Plugs, Wires, Distributor But The...

I Have A 2002 Gmc Siera 2500hd With A 6.0 L Vortec Engine And Automatic Transmission! No Matter What Gear I Put It In It Only Goes Foreward...

Someone Turned The Top Of The Air Filter Upside Down. It's Been Having Stall Out Problems.I Didnt Know About It Till I Looked Under The Hood...

The Idle Is High And I've Check For Vacuum Leak But It Was Fine. What Else Can It Be