2003 Gmc Sierra 1500 problems

The Chevrolet Silverado is a range of trucks manufactured by General Motors under the Chevrolet brand. Introduced for the 1999 model year, the Silverado is the successor to the long-running Chevrolet C/K model line. Taking its name from the top trim level from the Chevrolet C/K series, the Silverado is offered as a series of full-size pickup trucks, chassis cab trucks, and medium-duty trucks. The fourth generation of the model line was introduced for the 2019 model year.
The Chevrolet Silverado shares mechanical commonality with the identically related GMC Sierra; GMC ended the use of the C/K nomenclature a model generation prior to Chevrolet. In Mexico, high-trim level versions of the Silverado use the Chevrolet Cheyenne name (not to be confused with the 2003 concept). Competing against the Ford F-Series, Ram Pickup, Toyota Tundra, and Nissan Titan, the Silverado is among the best-selling vehicles in the United States, having sold over 12 million trucks since its introduction in 1998 as a 1999 model year.
History
The Silverado nameplate made its debut for the 1975 model year, becoming the top trim level on all Chevrolet C/K trucks, slotted above Custom Deluxe, Scottsdale, and Cheyenne. For the 1968 model year (seven years before the Silverado), GMC C/K trucks used variations of the Sierra name (Sierra, Sierra Classic, Sierra Grande, and High Sierra). Even after the C/K series officially ended, GM still uses the CK and the CC in their current model codes, to denote a two-wheel drive (CC), and four-wheel drive (CK).
For the 1988 GMT400 model architecture, Chevrolet retained the C/K model nomenclature, with GMC branding its full-size line as Sierras. While sharing the same body and chassis, the model chronology of the Silverado and Sierra are different, with five generations of the Sierra, while four of the Silverado.
In 2018, at the NTEA Work Truck Show in Indianapolis, Indiana, Chevrolet unveiled the first medium-duty Silverado, expanding the model line to a 4500HD, 5500HD, and 6500HD chassis cab. Largely the successor to the 2003–2009 GMT560 chassis, the medium-duty trucks are exclusive to Chevrolet, with no plans for an equivalent GMC version. Instead, Navistar International (now partnering with GM) would sell the medium-duty trucks as a rebadged counterpart, called the CV. This is in fact a very similar nod to how the Avalanche did not have a GMC Yukon–based equivalent, but instead, Cadillac would take its place as the former's rebadged counterpart, the Escalade EXT.
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Common 2003 Gmc Sierra 1500 problems
The GMC Sierra 1500 is a popular pickup truck, but like any vehicle, it has its share of common problems. Here are some of the most frequently reported issues with the 2003 GMC Sierra 1500, based on complaints from owners:
- A/C Temperature and Air Delivery Mode Door Actuator Failure: Over 260 owners have reported issues with the A/C temperature and air delivery mode door actuator. When the air delivery mode door actuator fails, the HVAC system can’t deliver air to cool or heat the Sierra’s cab. This issue should appear as a fault in the A/C control module, which requires a diagnostic visit and potential repair costs for this full-size truck.
- Fuel Level Sensor Failure: Over 170 owners have reported issues with the fuel level sensor. When the fuel level sensor fails, it may read the fuel level incorrectly, requiring replacement of the sensor or the entire fuel pump module on high-mileage GMC Sierra 1500 models. The repair costs about $1,000.
- Steering Gear Box Failure: Some owners have reported issues with the steering gear box, which can cause difficulty steering the vehicle. This issue may require replacement of the steering gear box, which can be a costly repair.
- ABS Brake Sensor Failure: Some owners have reported issues with the ABS brake sensor, which can cause the ABS warning light to illuminate. This issue may require replacement of the sensor or the ABS module, which can be a costly repair.
It's important to note that the 2003 GMC Sierra 1500 has an average annual repair and maintenance cost of $727, which is lower than the $936 average for all trucks in this class. Despite its problems, the Sierra 1500 ranks high on a list of full-size pickups for reliability, with an above-average reliability rating of 3.5 out of 5.0.
How many miles can a 2003 GMC Sierra last?
How Long Will the 2003 GMC Sierra Last? With fastidious maintenance you can get a 2003 Sierra up to 300,000 miles on the original transmission, just don't count on the previous owner having done their due diligence. Realistically you should expect 200,000 to 250,000 miles.
What years did the GMC Sierra have transmission problems?
GMC's Sierra 1500 is one of the toughest pickups there is, offering a plethora of powertrain options to suit buyers' needs. However, owners report transmission problems in models from 2009 to 2013, including hesitating between shifts.
Does GMC Sierra have engine problems?
The 2022 GMC Sierra engine issues are one of the largest GMC scandals in recent years. It is more than likely that customers will be dissuaded from buying this truck in the near future but hopefully, General Motors will manage to address all the issues quickly.
Is GMC Sierra 1500 reliable?
Yes, GMC trucks are among the most reliable pickups on the market. Year after year, the J.D. Power Dependability Study has ranked the Sierra 1500 and Sierra 2500HD in the top five of their respective segments.
How many miles can a 2003 GMC Sierra last?
How Long Will the 2003 GMC Sierra Last? With fastidious maintenance you can get a 2003 Sierra up to 300,000 miles on the original transmission, just don't count on the previous owner having done their due diligence. Realistically you should expect 200,000 to 250,000 miles.
Is GMC Sierra 1500 reliable?
Yes, GMC trucks are among the most reliable pickups on the market. Year after year, the J.D. Power Dependability Study has ranked the Sierra 1500 and Sierra 2500HD in the top five of their respective segments.
Does GMC Sierra have engine problems?
The 2022 GMC Sierra engine issues are one of the largest GMC scandals in recent years. It is more than likely that customers will be dissuaded from buying this truck in the near future but hopefully, General Motors will manage to address all the issues quickly.
What is the best year for the Sierra 1500?
Overall, the GMC Sierra 1500 is worth it if you're willing to keep up with regular maintenance for the machine. We recommend 2004, 2011, 2012, 2016, 2017, and 2018 options as your top picks on the market.
2003 Gmc Sierra 1500 complaints
The NHTSA has received 0 complaints about various vehicle components related to the 2003 Gmc Sierra 1500.
You can leave your car complaint via the special form below.
2003 Gmc Sierra 1500 recalls
The National Highway Traffic Safety Administration (NHTSA) has issued 4 recalls for different components of the 2003 Gmc Sierra 1500.
- Manufacturer: FEDERAL-MOGUL CORPORATION
- Components: WHEELS:HUB
- Summary: CERTAIN FEDERAL-MOGUL REPLACEMENT WHEEL HUB ASSEMBLIES WITH THE BRAND NAMES: NATIONAL, CARQUEST P/NOS. 515020, 515021, 515025, 515053, 515054, 515059, AND 515060, SHIPPED BETWEEN JANUARY 23, 2006, AND DECEMBER 20, 2007, SOLD FOR LIGHT DUTY AND MEDIUM DUTY TRUCKS. THE INBOARD RETENTION NUT USED TO MAINTAIN HUB BEARING ASSEMBLY CAN LOOSEN RESULTING IN AN ABS LIGHT INDICATION, NOISE, AND/OR WHEEL SEPARATION.
- Consequence: WHEEL SEPARATION CAN RESULT IN A VEHICLE CRASH.
- Remedy: FEDERAL-MOGUL WILL NOTIFY CUSTOMERS AND WILL REPLACE THE HUB ASSEMBLY FREE OF CHARGE. THE RECALL BEGAN ON FEBRUARY 7, 2008. OWNERS CAN CONTACT FEDERAL-MOGUL TOLL-FREE AT 877-489-6659.
- Manufacturer: FEDERAL-MOGUL CORPORATION
- Components: SERVICE BRAKES, AIR
- Summary: CERTAIN FEDERAL-MOGUL NATIONAL AND CARQUEST AFTERMARKET HUB ASSEMBLIES, P/N 515058, SOLD FOR USE ON 2001-2006 GENERAL MOTORS 1500 AND 2500 4WD TRUCKS. ON THE SUBJECT HUB ASSEMBLIES, THE ABS SENSOR CORD DEPARTS FROM THE HUB ASSEMBLY AT A 90 DEGREE ANGLE. AS A RESULT, THERE IS A FIT ISSUE WITH THE BRAKE ROTOR DUST SHIELD INTERFERING WITH THE ABS SENSOR CORD. IF THE HUB ASSEMBLY IS INSTALLED DESPITE THIS INTERFERENCE, THE GAP BETWEEN THE ABS SENSOR AND THE TONE WHEEL MAY BE ALTERED. THIS MAY WEAKEN THE OUTPUT OF THE ABS SENSOR. DIMINISHED OUTPUT COULD RESULT IN AN UNWANTED ABS ACTIVATION AT LOW SPEEDS AND STOPPING DISTANCE COULD BE AFFECTED.
- Consequence: IF STOPPING DISTANCE IS LIMITED, A VEHICLE CRASH COULD OCCUR.
- Remedy: FEDERAL-MOGUL WILL NOTIFY ITS OWNERS AND WILL EITHER CREDIT THE CUSTOMERS ACCOUNT OR REPLACE THE UNIT. THE RECALL IS EXPECTED TO BEGIN DURING JUNE 2006. OWNERS CAN CONTACT FEDERAL-MOGUL CUSTOMER SERVICE AT 1-800-563-8507 EXT 3530.
- Manufacturer: HONEYWELL INTERNATIONAL, INC.
- Components: FUEL SYSTEM, GASOLINE
- Summary: CERTAIN REPLACEMENT FUEL FILTERS, FRAM BRAND NAME P/N G3727, WITH DATE CODES X52911 THROUGH X60801 SEQUENTIALLY OR X600141 AND A MEXICO COUNTRY OR ORIGIN MARKING ON THE FUEL FILTER HOUSING MANUFACTURED FROM OCTOBER 18, 2005, THROUGH MARCH 21, 2006, SOLD FOR USE ON THE VEHICLES LISTED ABOVE AND ON CERTAIN SCHOOL BUSES. (TO SEE THE SCHOOL BUS ENGINE SIZES, CLICK ON "DOCUMENT SEARCH" AND THEN "BUS APPLICATIONS"). THE CONNECTOR ON THE FUEL FILTER WAS NOT MANUFACTURED TO HONEYWELL'S SPECIFICATION. AS A RESULT, THE O-RING MAY NOT SEAT CORRECTLY ON THE FUEL LINE.
- Consequence: THIS CONDITION MAY CAUSE AN INADEQUATE SEAL AT THE CONNECTION, POTENTIALLY LEADING TO A FUEL LEAK. IN THE PRESENCE OF AN IGNITION SOURCE, A FIRE COULD OCCUR.
- Remedy: HONEYWELL WILL NOTIFY OWNERS AND REPLACE THE FUEL FILTERS FREE OF CHARGE. THE RECALL BEGAN ON OCTOBER 18, 2006. OWNERS MAY CONTACT FRAM CUSTOMER SERVICE AT 1-800-890-2075 (OPTION 1).
- Manufacturer: MOBILITY WORKS
- Components: EQUIPMENT ADAPTIVE/MOBILITY
- Summary: ON CERTAIN VANS EQUIPPED WITH SURE-LOK WHEELCHAIR SECUREMENT SYSTEMS, THE SPROCKET TEETH OF THE RETRACTOR ASSEMBLY IS OUT OF ALIGNMENT.
- Consequence: IN THE EVENT OF A VEHICLE CRASH, THE WHEELCHAIR MAY NOT BE ADEQUATELY SECURED POSSIBLY RESULTING IN INJURIES TO A WHEELCHAIR OCCUPANT.
- Remedy: DEALERS WILL INSPECT AND REPLACE THE WHEELCHAIR SECUREMENT RETRACTORS AS NECESSARY. SURE-LOK WILL HANDLE THE REPAIRS FOR THIS CAMPAIGN. OWNERS SHOULD CONTACT SURE-LOCK AT 1-908-231-1804 OR MOBILITYWORKS AT 1-800-769-8267.
Negative 2003 Gmc Sierra 1500 car reviews
Positive 2003 Gmc Sierra 1500 car reviews
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I use mine as a strict work truck. It has cloth seats, a rubber floor mat, and an automatic transmission, which was the only option. It's the easiest vehicle I've ever driven; very docile and predictable. However, GM botched the steering shaft coupler, which causes rattling across rough terrain.
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Congratulations on your new truck! It's great to hear that you were able to get the color and options that you wanted, and that the improved performance of the 2003 model has been a noticeable improvement. While it's unfortunate that you had to make several visits to the dealer for minor warranty repairs, it's wonderful to hear that your truck has been terrific since then. It sounds like you're now considering downsizing to a smaller truck for your fish/ski boat, which is a smart move. It's impressive that you've been able to achieve such good fuel mileage with your current truck, thanks to the 5.3L and 3.42 rear, synthetic oil, and keeping your tires pumped up to 44 lbs. Keep up the good work!
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When I first purchased this truck, I was impressed by how smooth and well-handling it was, especially for a 4x4. (My wife has since purchased a Yukon 4x4, which is even smoother!) I've taken it off-road quite a bit, but I don't drive it too roughly or abuse it. Mostly, I stick to steep hills, sand, mud under 6-8 inches, and a little rock crawling. If your truck doesn't have a locking rear differential, I highly recommend investing in one. It's definitely saved me more in tow services than it cost to install. Fortunately, I haven't experienced any serious mechanical failures, although I did have a u-joint start chirping on me after a week in the hills of western South Dakota. The truck has about 50,000 miles on it and I make sure to get it serviced regularly.
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The automatic dual climate control is nice, but in the auto mode, it can be a bit challenging to keep the interior as cool as you might want. I was definitely unhappy about the silent recall concerning the rust behind the front bumper. It was frustrating to learn about it on the internet, and when I took it to two different dealers, I got a bit of the runaround. Both claimed that I had the only truck that had been brought in for this problem.
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I'm so glad I purchased this truck with only 48K miles on it! I was pleasantly surprised by the high quality of this vehicle, especially considering it's five years old. I was expecting some suspension issues or cabin rattles, but there were none! It feels like a brand new truck. I opted for the SLT with the Bose sound system and heated leather seats, and I have to say, it's hard to leave the comfort of my truck. After looking at all the other manufacturers, I'm confident that I made the right choice.
Additional sources
More sources of information about 2003 Gmc Sierra 1500 problems:
2003 GMC Sierra 1500 Problems and Complaints - 45 Issues
Top 2003 GMC Sierra 1500 Problems · 4WD Transfer Case Position Sensor/Selector Switch May Fail · Heating and AC Temperature and Air Delivery Mode Door Actuators ...
Q&A: 2003 GMC Sierra 1500 Idling Issues & Stalling | JustAnswer
Nov 2, 2009 ... What causes intermittent idling in my 2003 GMC Sierra 1500 with the 5.3 ... Hello and welcome. Yes, this is a very common problem on this and ...
2003 GMC Sierra 1500 Engine Misfire | Chevy Silverado and GMC ...
Jun 29, 2016 ... No more misfire code. This issue usually happens due to the spark plug gap getting too wide due to wear. If you have 100,000 miles or more on ...
My 2003 GMC Sierra 1500 5.3 stalls on me on the fwy after 10 miles ...
Oct 3, 2023 ... One of the most common issues that cause the Sierra to stall out is a fuel problem. This could be due to bad gas, a faulty fuel pump, a clogged ...

Question: I've been wondering if GMC is reliable.. I've always heard ...
Jan 21, 2023 ... My last long drive was Ohio to North Cali. Nothing but love for this truck and I will hold it as a great example of GMC reliability. Get your ...
Lonny Mueller 2024-11-06
Although my experience with this vehicle has been less than satisfactory, I am confident in my assessment of its performance. Despite having only 8000 miles, it has required multiple repairs and has not met my expectations. The rattling, malfunctioning brake cylinder, faulty passenger window, and leaking rear axle seals are all issues that have negatively impacted my experience with this U.S. built auto. Based on my experience, I cannot recommend purchasing this vehicle.
Maxwell Nikolaus 2024-08-01
The wind noise from the passenger side wing window is unacceptable. Despite three trips to the dealer and the replacement of the entire window, the issue persists.