Engine Performance problem
2004 Chevy Silverado V8 Two Wheel Drive Automatic 64,000 miles
----------------------------------------------------------------
Ok Here We Go I Have A 2004 Silverado With The 5.3 It Is Fly By Wire Throtle Body. The Truck Has Ported Heads, Headers, 4.10 Gears After Market Cam It Had The GM HD Transmition 4l60e In It I Changed The Throttle Body From A 75mm To A 80mm It Ran Fine. Then The Tranny Blew Up It Broke The Output Shaft In Half. So I Took It To The Transmition Shop They Built Me A Transmition With The Shift Kit 5 Planet Gears The Whole 9 Yards. The Converter Was Supost To Be A 2,700 Stall So I Got The Truck Back And The Truck Lacked Power And Was Not Shifting Right So I Bring The Truck Back To The Trans Shop They Tell Me The Reverse Gears Burned Up They Fix The Prob I Tell Them The Converter Is Not Right Does Not Feel Like A Stall Conv. The Converter Is The Same Housing I Had In The Blown Up Trans. So They Change The Converter It Looks Like The Same Sise As The Old One. The Truck Has A Clunking Noise When It Is At Idle And When Stoped And When Restarted Like A Shuter In The FlorBoard Area And Is Even Slower Than The Last Time. So I Bring It Back, The Teck Goes On A Test Drive With Me And Tells Me That He Cant Feel Nuthing Wrong So We Stop At A Light And I Tell Him That I Will Get On It One More Time, When The Light Turns Green I Start To Go And The Truck Just Reevs Up To 3000rpm And Wont Go!! So We Tow It Back. They Tell Me The Pump Gear Burned Up So They Replace It. The Converter Is Still Not Staling So I Get My Owne From A Aftermarket Dealer It Is A 9" 2,700 Stall Lock Up Converter. The Converter Noise Goes Away The Tranny Shop Fixes The Tranny I Get The Truck Back And The Stall Is Great But The Truck Surges And Some Times Dies When Applying The Breaks Even When I Coast To A StopThe Tuck Dies After The Lasd Down Shift ( It Does Not Die When It Is Cold)
I Have The Cooling Fan On The DARLE Two Coar Trans Cooler So It Is Not Geting Hot. And When At Speeds Of 30mph Or Greator When I FLOOR The Gas The Truck Starts To Rev Up And Just Cuts All The Way Out For A Split Second Then Catches And Away It Goes Then When I Reach High Speeds And RPM (The Rev Limiter Is Deleted) The Truck Cuts To Like 4cylinders And Says Reduced Engine Power And The Check Eng Light Goes On And The Coad Says The Throttle Pos Is Not Actual. But If I Dont Tromp On It All The Other Problems Are There With No Coads. I Have Checked The Fuell Press. It Is Fine. And When I Rev The Truck Up Slowley It Will Surge Several Times UP DOWN And Die If I Let Off The Gas. And Around 3,000 To 4,000 rpm In Neutral When Pushing The Gas Verry Slowley Down The Rpm Stays The Same Even When Pushing For A Short Moment. HEEELP!!!!!

problem is either in the throttle body or the gas pedal. i just had a trailblazer with the same code and i flipped the coin and it landed on gas pedal and that fixed it.