HUMMER ENGINE SYMPTOM

My 2007 Hummer H3 Will Not Start And Makes This Clicking Noise When I Turn The Key To Start It, So Is This The Battery, Starter, Or...

Hi, Ihave 2006 Hummer H2 With 25000 Miles. Its Running And Idling Rough For More Than A Year. Dealer Says There Is No Any Code And...

It Acts Like The Battery Is Dead When Trying To Start It But The Battery Is Ok And All Electrical Systems Work Fine It Is When You Turn It...

Engine Performance Problem 2006 Hummer H3 4 Cyl Four Wheel Drive Automatic 70k Miles From Time To Time The Engine Will Turn Over But...

Hi, I Have 2006 Hummer H2 With Only 25000 Miles And Its Idling Rough And Not Running Smooth As It Used To Be. Its Still Under Warranty....

Engine Mechanical Problem 1997 Hummer H1 V8 Four Wheel Drive 120 Miles Every Once In A While, The Engine Won't Accelerate But Bucks....

I Have A 2007 Hummer H3 I Changed The Cd Player In, When I Did I Unplugged The Plugs For The Four Ways, Push Button 4x4, And Heat/air...

Engine Running Rough No Code. Sometimes Different Sounds From Exhaust

I Just Bought A 2003 H2 I Know They Have Horrible Mpg Anyway, But Is There Anything I Can Do Myself To Improve The Mpg In Any Way?

Po 171 Too Lean This Is What A Guy At Auto Zone Said Was Wrong With My Vehicle. Exactly What Does That Mean?