2003 Chevrolet Silverado 2500: check engine light

Filed Apr 10, 2022 · Engine · PR

In the middle of the taxiway, while I was traveling my truck turned off while it was running and did not turn on again, putting my safety at risk by being in the middle of the taxiway, after several minutes the truck was able to be removed from the road, then I was able to investigate that I am not the only one that the same thing has happened to him, there is no Safety Recall in this regard, the GM fabric is aware of these cases but only wrote a TSB, it was diagnosed with the scanner and it gave code U1800, before the event there were no lights warning but after the event there is a check engine light on.

Filed Jan 13, 2016 · Driver assistance · NY

With my 03 chevy silvarado 2500 hd this reduced power engine light comes on.shuts the vehicle off to 30 MPH.this happens on a regular basis.does not matter where your driving.especially on a highway.the truck will jerk one way or the other then u have no speed no control for a little bit .very dangerous.have to pull over when you gain control shut the truck off.then wait about a couple minutes then start the truck and off il go.happen about 5-6 times a day now.this problem can not be fixed,even if you go to a dealer they will replace all the sensors for the throttle you will spend a small fortune and the problem still persists.this is a serious problem and a very dangerous problem and happens to many of these trucks.look it up on youtube or google it.im very surprised not to see this on the complaint board.please if you have this problem post it so it can be recalled.I travel with my dog all the time and if something happens to him it would be very traumatic to me.what if you have children or guests in your truck.its wrong that this issue is not being addressed.I have complained to this company and also to chevrolet to no avail.im worried someone has to be hurt bad or killed to have this matter taken seriously.wow the truck has a recall for the tailgate wires.the bumpers are crapp and rusty junk but no recall there as well.please take this serious and all complain about it cause this is very dangerous.I hate this and I refuse to spend money on some defect in the electrical system.this needs to be recalled an absolute must.I know im not the only one so please post your complaints about this reduced engine power light that randomly comes on without warning.I know you would not want to be towing with this problem.also you will not be able to resell this vehicle honestly.you will have to lie to someone and if they get hurt or you get sued that will not be good.

Filed Jun 8, 2014 · Electrical, Fuel system · 131,000 miles · IN

When driving the truck whether on a regular street or at high speeds on the highway, the engine suddenly either dies, reduces down to idle speed or idles very roughly. The reduced power signal comes on, along with the engine light. This has happened to us, several times while driving on the highway and on regular streets. We were extremely lucky not to have been killed. I researched this and found that many owners of the 2003 chevy silverado 2500hd had the same problem. We spent a lot of money at penske chevrolet, and according to them, they don't know how to fix it. We bought the truck in 8/2013, without any warranty and this problem was not disclosed to us. Since 12/2013, the problem has become more frequent and now we don't drive the vehicle because it is just too dangerous. There has to be some way to fix this problem and the chevrolet company has to know about this because there are so many complaints out there.

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 Jan 11, 2013 · Engine · 79,000 miles · ND

Tl* the contact owns a 2003 chevrolet silverado 2500 hd. The contact stated that while driving approximately 35 MPH, a loud noise emitted from the engine compartment and the engine warning light illuminated. The vehicle was taken to a private mechanic who informed the contact that the exhaust manifold had failed. The vehicle was not repaired. The manufacturer was notified of the failure. The approximate failure mileage was 79,000.

Filed Dec 10, 2010 · Engine · 130,000 miles · IN

I have a 2003 chevy 2500 silverado with the 6 liter v8. 2 years ago I noticed a ticking sound from the engine compartment. After looking closer I found a broken exhaust manifold bolt on the right side. At that time the vehicle had about 130,000 miles on it. A couple months later while changing oil I found another broken bolt on the right side. This year while changing plugs I found another broken bolt on the left side. I was looking on the internet to get some tips on fixing the problem when I came across a utube video by carquestions and found out this is not just bad luck on my part it is a very wide spread problem and an obvious manufacturing defect by gm. This is not an easy fix and to get it done is more than I can afford. My check engine light is on constantly now because of the problem it has created with the emission control system. This was not the result of any actions of mine. I have done the maintenance to maintain this vehicle. Gm needs to be responsible for fixing this problem.

Filed Sep 3, 2010 · Engine · 135,000 miles · MN

Vehicle remains running but shows power reduction. Check engine light comes on and stays on. You have to pull over, shut it off, press the arrow button on the steering wheel for a few second and restart. This happened on i35 at 70mph 4 times in 40 miles yesterday.

Filed Jun 12, 2006 · Body, Brakes · 54,385 miles · CA

Consumer complaint concerning transmission failures on 2003 silverado. *ts the transmission fluid was burnt, the reverse gear was inoperable and the transmission shifter was loose. The power steering fluid was low. Fluid was leaking from the gear box. The front seal on the power steering pump was worn and leaking, as well as the lower hose. The water pump gasket and lower radiator hose was leaking. The battery was replaced because it would not hold a charge. The A/C would only blow out air from the defrost vents. The A/C heater mode door actuator was worn. The check engine light illuminated. The fuel filter was replaced. The panel on the drivers seat was warped. The tires were replaced, however months later one of the tires developed a slow leak, due to a pin hole located in the sidewall. The rear pads and rotors were replaced. The front and rear shocks were replaced. The tail gate support cables were replaced. The rear tire blew out while driving. The second row seat belt was inoperative.