GMC CHECK ENGINE LIGHT

Check Engine Light Came On. Diagnosed With Bad Throttle Sensor And Egr Module. Both Replaced. Drove It Home, Check Engine Light Came On...

Replaced Cat Last Year And Rear O2 Sensor Check Engine Light Came Back On Po430 Cat Below Efficiency Bank 1 Replaced Both O2 Sensor Check...

My Wife Was Driving Back From Her Parents House This Past Mothers Day When Her Check Engine Light Came The Car Seemed To Be Running Fine And...

I Have A 1988 Gmc R3500 It Has The 7.4l Fuel Injected It Is Running Extremely Rich And I Can Not Figure Out Why There Is No Check Engine...

When The Engine Was Hot The Idle Speed Was Jumping And Dropping, So I Decided To Clean The Throttle Body. The Rpm Idle Was Normal For A...

After Cranked And Running, The Engine Sometimes Will Just Quit. This Often Is Caused By Depressing The Brake Or Switching On The Lights. At...

I Have A 2008 Gmc Acadia, And The Service Traction System Light Came On And Has Been On. The Condition Has Gotten Worse In The Last Couple...

This Truck Has The 5.7 Vortec Engine And It Runs Like A Top, However Once It Has Been Started And Warmed Up It Will Not Restart Unless You...

It Was -40 Degrees This Morning When I Started My 89 Sierra To Warm It Up Before Work. As I Was Walking Back Inside I Though I Heard A...

My 95 Has Just Started Dying About A Week Ago. No Check Engine Light Comes On. It Seems To Do It More At Slower Speeds, It Will Start Up...