2003 Chevrolet Silverado 2500 acceleration problems

Filed Jun 3, 2019 · Acceleration, Driver assistance · MS

Been having problems slowly with the battery running out because something is still running in the vehicle but everything is off. The gas gauge gear control lighting on the panel door on the passenger side will not lock speedometer is not working gas gauge is not working was checked by a mechanic and he address that something is not constant running even though everything is turned off that cause the battery to run down when it is off. Also the lights don't light on the right side stays on and never goes off when running the vehicle. I noticed this on a lot of 2500 chevy trucks. We have taken this vehicle in to be check. Please help us to resolve this problem as soon as possible. Thank you for your time. Looking forward to hearing back from you sun.

Filed Sep 26, 2014 · Acceleration, Electrical · 133,000 miles · GA

I was traveling on the interstate with my family aboard at the speed around 75+ MPH and suddenly the vehicle looses speed while traveling among others at around the same speed or higher when suddenly the speed decreases to no speed, and a this warning comes across the dash panel, that says reduced speed and all these 18 wheelers are behind me and around me. The more I press the accelerator it would do nothing but almost cost my wife a heart attack from the big trucks blowing there horn and fearing the day lights out of my family. Then a week later the cluster starts acting all crazy with the lights going out and on, and now they aren't working at all. The gauges stopped working the speed along with gas gauges etc... While I have never owned anything other than "chevy's", trucks and cars I have seriously been considering another name & make in my next choice of purchase.... So a loyal friend advised me to send gm a e-mail explaining my issues...

Filed Jan 18, 2014 · Acceleration, Engine · NY

While driving, the check engine light comes on and "reduced engine power" is illuminated on the dash. Stepping on the gas does nothing. The vehicle just coasts along and runs rough. I have to pull over and shut it off for a few seconds. Sometimes it doesn't clear the problem right away and needs to be restarted several times. There is no rhyme or reason as to when this happens. It happens almost every day, on busy expressways or on main roads and side roads. The gas pedal loses communication with the throttle body. This is nerve wracking when driving 65 MPH on the expressway and all of a sudden the vehicle wont respond to stepping on the gas pedal. Trying to get over several lanes to the side of the road is dangerous when there is no acceleration. It is also bad when on a busy, main road, the vehicle "acts up". I have to pull over, blocking traffic, until I can get it going again.

Filed Jul 19, 2013 · Acceleration, Body · 162,000 miles · KY

Depressed brake pedal while hooking to trailer preparing to haul farm equipment. The pedal went to the floor and I found fluid running down the frame of the truck checked lines and found burst line and all lines looked terribly rusted/rotten. This could have been classified as a near miss since I was on a gravel hillside and had I been hooked to the trailer I would have had a vehicle totally out of control merging into traffic.

Filed Dec 16, 2011 · Acceleration, Electrical · 70,000 miles · TX

Speedometer randomly increases, decrease or will not work at all. Oil gauge fluctuates also the heater resistors burned up.

Filed Jun 28, 2010 · Acceleration · 100,000 miles · MA

Tl* the contact owns a 2003 chevrolet silverado 2500 heavy duty. The contact stated while entering a highway at unknown speeds, the vehicle would not accelerate. The contact stated when the automatic headlights were operating, the vehicle would not accelerate. However when they were off, there were no issues with acceleration. When the high beam lights were on, the vehicle would stall. The contact would have to shut off the engine, reactivate the lights, restart the engine, and then the vehicle would resume normal operation. The dealer advised having diagnostic testing performed on the vehicle. The vehicle was previously diagnosed however, there were no repairs made to the vehicle. The contact could not confirm the results of the previous diagnostic. The vehicle was not repaired. The failure mileage was approximately 100,000 and the current was unknown.

Filed Jun 28, 2010 · Acceleration · 110,000 miles · CT

Tl* the contact owns a 2003 chevrolet silverado 2500 heavy duty. While attempting to accelerate from a traffic stop, the accelerator pedal fell into the floorboard much farther than normal however; the vehicle would not accelerate over 25 MPH. The reduced power warning light was illuminated and the contact moved the vehicle off the roadway. The contact shut off and restarted the vehicle. The vehicle resumed normal operation. The failure recurred two additional times. The dealer re-routed the inside engine harness yet the failure continued to recur intermittently. The vehicle was taken back to the dealer where they performed an engine relearn service. The failure persisted. The failure mileage was 110,000 and the current mileage was 117,000.

Filed Feb 8, 2010 · Acceleration · 100,000 miles · MI

Severe surging/bucking of vehicle when traveling downhill with the cruise control on.

Filed May 14, 2007 · Acceleration · 38,200 miles · AZ

2003 chevrolet 2500hd 4x4 speedometer stopped working at 38,000 miles. Vehicle just out of warranty. Read forums of hundreds of people having same problem. Gm should recall. This was a safety issue.

Filed Apr 7, 2007 · Acceleration · 27,300 miles · ID

Speedometer began to jump around and it was impossible to tell how fast I was going. Dealer told me it wasn't a recall issue, but too many gm owners were having the same problems.