GMC CHECK ENGINE LIGHT

This Truck Will Just Quit Running Like You Cut The Switch Off. Even While Driving.I Have Been Trying To Fix For Over A Year. This Is What I...

Cranks But Wont Start. After It Sits For A Couple Of Days It Starts And Runs Fine. No Check Engine Light. Sometimes This Doesnot Happen For...

I Have A 2004 Gmc Sierra 2500 Hd And My Check Engine Light Is On And I Had Hooked It To A Test Set And Was Told That All 4 Of My O2 Sensors...

I'm Trying To Check On The Vss For My Truck, And When The Scan Tool Is Plugged In To The Aldl, It Keeps Showing " Linking Error". We've...

Engine Light On Codes, P0449, P0455 I Changed Fuel Cap, Reset Light Yet Drive For 15 Min And Light Returns With Code P0449. I...

Engine Light Comes On When Reach Speeds Over 70 Mph Code Goes Off When I Keep Speed Below 46

I Am Wndering If Thair Is A Way To Diegnoise Or Run A Scan Thru The On Board Computer Thru A Flash Cde Method Other Than Useing A Scan Tool

How Do We Monitor A Serial Data Line Without Using A Scan Tool

How Much Should I Expect To Pay For A Repair Or My Vss On My 1996 Monte Carlo Ls? The Car Speedometer Will Drop To Zero, No Ses Light And...

Service Engine Light Came On Oil Pressure Goes Up When Throttle Goes Up And Then Goes Back To Normal When Let Off