GMC SIERRA CHECK ENGINE LIGHT

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

2004 Gmc Sierra V8 Four Wheel Drive Automatic My Engine Light Is On And It Tells Me To Tighten My Fuel Cover, So I Put On A New Cover...

My Engine Light Is On And It Read Two Codes.P0449 And P0455. I Changed The Fuel Cap And Had The Computer Reset And The Light Went Off. Later...

My Check Engine Light Came On And I Brought It To Advance Auto Parts. They Gave Me The Code But Told Me They Couldn't Tell Me What It...