HUMMER H1 ENGINE SYMPTOM

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...