GMC ENGINE RUNS ROUGH

4.3 V6. Runs Rough Thru Acceleration. Will Idle Well For A While And Dies. Black Smoke. It Runs Alot Better Than When I Got It But Still Not...

Our Gmc Is Running Rough And When You Accelerate Quickly It Spews Black Exhaust. Also The Service Engine Soon Light Is On. The O2 Sensors...

My Truck Has Been Running Rough For A While Now And Over The Past Month Or So, And After Doing Some Research, I Have Changed All The...

Was Running Great One Day The I Put New Plugs In It Was Still Running Great It Was Almost On E So I Stoped At A Gas Station And Put About 5...

Engine Has Been Running Good, No Problems. Went For A Drive And Engine Started Running Rough At 2000 Rpm, Anything Above 2000 Rpm Runs...

My Yukon Idles/runs Rough When I Initially Start (cold), After It Warms Up It Runs Great. Shaky And Rough Running Is Only For A Few Minutes...

I Have A 1999 Gmc Yukon, Awhile Back I Went To Start The Engine And It Was Locked Down. The Mechanic Said That The Injectors Were Bad And...

Had Fuel Pump Replaced, Head Gasket Replaced, Egr, Fuelfilter, H2o Pump, Plugs/wires. Runs At Get Go, But After A While Spits & Sputters...

When The Engine Is Idling It Misses ( Runs Ruff).

The Engine Was Running Fine Before I Disconnected Two Of The Spark Plug Wires From The Distributor Cap To Allow Me To Get To A Broken Heater...