GMC ENGINE MISFIRE

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

Engine Mechanical Problem 2002 Gmc C3500 V8 Two Wheel Drive Automatic Someone Borrowed My Truck And Filled Up With Diesel (it Was...

My Truck Has Been Idling Poorly For The Past Few Weeks, For Example After The Truck Warms Up It Idles So Slowly That It Dies. The Truck...

Ok Here's The Back Story, My Aunt Got This Truck From A Friend Who Took It To The Dealer To Have It Checked Before Giving It To Her, And...

Misfire, Engine Check Light Comes On With Code P0300.

Our Anilizer Says Dtc. We Need To Know What That Is. The Engin Skips.

Engine Misfires In Idle

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...

Last Night When Engine Started It Ran Very Rough, Missing Badly. Turned It Off And Restarted After A Minute, It Stopped Missing And Ran...

How Can You Tell When You Hook It Up On One Of Those Machines And It Says It Has A Misfire On 2 And 6? Is That Spark Plugs, Injectors...