GMC Sierra Computer

Failed Inspection Because There Is No Power To Port So Can't Do Ma Emissions Test. Contacts Look Good, Auxiliary Power Ports Have Power...

I Can't Figure Out Which Fuse My Obd Port Is Connected To. I've Looked For A Cigarette Lighter Fuse And Every Other Fuse That I...

Stability Trac And Reduced Power Warning Light Came On And Truck Would Barely Carry Itself. Sounds Like It Was Running On One Cylinder. Is...

I Have Had My Vehicle To 3 Different Dealers To Diagnose The Problem For A Fix. No Error Codes Are Being Stored Is One Issue And The Service...

We’ve Replaced The Tbs, Tb, Pedal, Pigtail And We’re Still Having Problems With Reduced Engine Power. It’ll Run Right For A Minute And...

I Have A 07 Gmc Sierra Diesel Is Was Flooded All The Way Up I Had Another Wrecked I Swap Everything From One To The Other I Kept The Flooded...

When Checking For 5vlt At Signal Wire (lt Grn/blck + Blk/wht)at Female End Of Harness At Encoder Motor. I Don't Get A Reading Until I Put...

2005 Gmc 2500hd Duramax. Have Had Injectors Replaced And A New Ptcm Installed Less Than 5000 Miles Ago. Started Heavy Smoke. From The Day...

Dash Light Came On. Reduced Engine Power ??????

I Have 2004 Gmc 2500hd Diesel. I Have An Edge Juice With Attitude Programmer Hooked Up To It. After About 2 Weeks My Motor Started Rattling...