GMC P CODES (POWERTRAIN)

Check Engine Light Goes On For A Couple Days Then Off For Couple Days. No Engine Performance Change. If I Knew Where Camshaft And/or...

I Recently Had Both Heads (cracked) Changed On My Truck Because Of Overheating Due To Complete Loss Of Coolant. After The Work Was...

I Keep Setting Both Bank 1 And Bank 2 Rich At The Same Time I Can Erase The Mil And Drive Non Stop And The Codes Will Never Show Up Except...

Misfire On 4 Of The 8 Cylinders. The 4 On The Drivers Side The Coils, Plugs And Wires Are Fine. Had To Replace The Wires Going To The Coils...

This Vehicle Had The Distributor Replaced By A G.M. Dealership, Due To The Cap And Rotor Melting. Every Since Then When The Vehicle Is...

Hello, Took My Yukon In To Get The Service Engine Codes Read. They Told Me That They Could Not Retrieve The Information. There Was...

The Truck Has Had The Check Engine Light On For A Long Time But Was Running Fine. Now The Idle Is Rough, It Runs Rough, The Gas Mileage Is...

01 6.0 In A Yukon Xl. Cyl #2 Misfiring. Parts Changed/checked ; Head Gaskets, With Valve Job. Coil. Plug Wire. Plug. Injector. Fuel Psi Reg...

Truck Is Running Lean, But Drives Good. Starts Acting Up When I Am Going Slow And In Idle But Not All The Time. I Have Replaced Fuel Tank...

Just Replaced Head And Did Complete Tune Up And Don"t Know Where To Go Next? Car Has Random Misfires On Idle Updated 2-5-09 Already Did...