GMC Sierra Engine Hesitate

My 05 Searra Duramax Has Codes 0087,1093 It Stumbles Under Hard Accel Is Ok With Slow Smooth Accel Is There A Most Likly Cause?

I Have 1999 Gmc Sierra 4x4 5.3v8 Regular Cab When I Am Driving At 40-50miles An Hour And Have To Slow Down To Say 30 And Then Speed Back Up...

I Have A 1999 Gmc Ext. Cab Siera W/5.3 L , W/ 190,000ml And It Runs Good It Dont Miss Fire Or Run Rought , But When I Turn The Air Or Heat...

My Truck Takes About 10 Seconds To Start, Sounds Like It Doesn't Want To Kick Over But Finally Starts..it Will Start Up Right Away The Rest...

Engine Performance Problem 1996 Gmc Sierra V8 Four Wheel Drive Automatic 198.76 Miles The Engine Stumbles When Rpm Get To Around 3100....

1994 Gmc Sierra 4.3l V6 200,000 Miles I Have Been Experiencing An Intermitent Hesitation Or Stumble In My Truck. In Park Idle Seems Fine...

Enter Your Question... I Have A '93 Gmc V8 Serra Pu. I Have Replaced The Plug Wires, Plugs,fuel Filter,rotor Button. Then Engine Continues...

When The Motor Warms Up And I Reach 35-40 Mph The Truck Hesitates As If It Was Running Out Of Gas. It Only Happens In Overdrive. If I Let...

Engine Performance Problem 1987 Gmc Sierra V8 Two Wheel Drive Automatic 100+ Miles The Truck Will Start And Idle Fine, But When I...

On Acceleration, The Engine Will Sometimes Stumble Or Cough Through Carburetor And Sometimes Will Almost Die. For A 454 Dually Truck, This...