Tl* the contact owns a 2003 gmc sierra 2500. While driving at any speed, the vehicle stalled, lost power, and the service engine light illuminated. The vehicle was taken to an independent mechanic who was unable to diagnose the failure. The failure recurred. The manufacturer was made aware of the failure and advised the contact to take the vehicle to a local dealer for diagnostic testing. The vehicle was not diagnosed or repaired. The failure mileage was 180,000.
2003 GMC Sierra 2500 engine problems
11 complaints (7% of all complaints for this car). Typical mileage when it fails: 90,000. 1 crash reported.
- owner complaints
- 11
- of this car's complaints
- 7%
- typical mileage
- 90,000
- crashes
- 1
- recalls
- 0
Which part fails
- Exhaust system1
- Engine1
- Cooling system1
At what mileage
Complaints by mileage at the time of the problem.
0k-25k
25k-50k
50k-75k
75k-100k
100k-125k
125k-150k
150k-175k
175k-200k
200k+
GMC Sierra 2500 engine problems in other years
Specific symptoms reported on the 2003 GMC Sierra 2500 engine
Phrases found in the owners' own descriptions, so one complaint can mention several symptoms.
Related recalls
No recalls on record for this model year.
What 2003 GMC Sierra 2500 owners say
Most recent owner complaints, unedited.
I own a 2003 gmc duramax 167000 miles, it has been a great truck until recently, after engine gets hot it will not start back up until it has cooled off! Have not been able to find the problem yet, but found a lot of complaints online from people with the same problem, [injectors], very expensive to repair!!! This problem is very frustrating, would be great if general motors would correct this problem!!!!
Tl* the contact owns a 2003 gmc sierra 2500. The contact stated that there was a loss of power while traveling at any speed. The warning light illuminated for loss of power intermittently. The contact had to depress the acceleration pedal to the floorboard to accelerate on more than one occasion but to no avail. The vehicle continued to stall without warning. The vehicle was taken to an authorized dealer more than five times, who was not able to replicate or determine the cause of the failure. The vehicle had also been taken to the dealer for diagnosis but to no avail. The manufacturer was notified of the failure. The approximate failure mileage was not available.
Tl* the contact owns a 2003 gmc sierra 2500 hd. The contact stated that while traveling various speeds, the vehicle suddenly stalled. The contact also mentioned that the vehicle failed to start. The vehicle was not diagnosed or repaired. The manufacturer was not contacted about the failure. The failure mileage was approximately 90,000.
While driving, large amount of smoke came out. Took it to gm dealer who said that it the fuel injectors were leaking. Looked online and noticed hundreds of reports of the same action. Gmc apparently did an extended warranty for the issue, but only covered it for 7 years from time of purchase and up to 200,000 miles. Talked to local dealer who denied the service and gm wont replace the fuel injectors.
I keep getting reduced engine power p1516 code . Reading the post's on the internet this is a real common problem.also the speedometer will display 120 MPH sitting at a traffic light.
Power steering cooler and lines rusted through and leaking, engine oil cooler lines rusted through and leaking, transmission oil cooler lines rusted through and leaking. All had to be replaced. Work donea t gmc dealer.
While driving on the highway, my 2003 gmc sierra 2500 displayed a "reduced engine power" warning on my dashboard. My vehicle lost all speed control, decelerating from 65 MPH to 20 MPH in a matter of seconds. I immediately pulled over to the side of the highway and shut my truck off. Once I restarted the vehicle, the message was gone and my truck was fine. It was a very scary incident not being able keep the right speed for the conditions on the highway.
4 broken exhaust bolts on my 2003 serra 2500hd (pickup) v8 engine. Please watch the video of the same problem I have. Www.youtube.com/watch?v=0yg6wlbnzgi.
Instrument panel cluster components failed thus all gauges on dash board went "flat"/back to -0-; vehicle did operate however could not even read how much gas was in tank. Also as of mileage of 13312 notice vehicle began to use oil, as of 26300 after watching the vehicle noticed that it was extremely low; apparently the vehicle has been leaking oil on the intake - loosing almost 2 quarts of oil - on a newer vehicle it should not be using this much oil.
Questions about the 2003 GMC Sierra 2500 engine
Does the 2003 GMC Sierra 2500 have engine problems?
Owners have filed 11 complaints about the engine of the 2003 GMC Sierra 2500, 7% of all its complaints.
At what mileage do 2003 GMC Sierra 2500 engine problems start?
The typical (median) mileage in owner complaints is 90,000 miles.
Was there a recall on the 2003 GMC Sierra 2500 engine?
There is no recall for this problem on this model year.
What year does the GMC Sierra 2500 have bad engine?
The GMC Sierra 2500 model years with the most engine complaints are 2001 (29 complaints), 2004 (18 complaints) and 2005 (18 complaints).
Other 2003 GMC Sierra 2500 problems
Brakes 73Electrical 36Fuel system 15Transmission 13Steering 10Body 5Suspension 5Acceleration 4Tires 3Visibility 3Airbags 1Driver assistance 1Lights 1Seat belts 1
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