The 2003 GMC Sierra 3500 is a heavy-duty pickup truck known for its robust capabilities and workhorse nature. Part of the first generation of redesigned Sierra HD trucks (1999-2007), it comes in regular, extended, and crew cab configurations. Key trims include the base, SLE, and SLT. When new, prices ranged from around $25,000 to $40,000 depending on configuration and options. Its towing capacity and available Duramax diesel engine are major selling points, making it a popular choice for those needing serious hauling power.
The Good
The 2003 GMC Sierra 3500 offers strong performance thanks to its powerful engine options, particularly the Duramax diesel. Its robust build lends itself to decent reliability. For practical buyers, its towing and payload capacity are unmatched. For emotional buyers, the Sierra 3500 projects an image of strength and capability, representing "getting the job done" with confidence.
The Bad
The 2003 GMC Sierra 3500 can suffer from rust, particularly in areas with road salt. The fuel injectors on the Duramax diesel can be problematic, and the automatic transmission (especially behind the diesel) can require maintenance. The interior, while functional, lacks the refinement of some competitors. Watch for worn ball joints and tie rod ends, especially on trucks used for heavy towing.
2003 GMC Sierra 3500: Quick Overview
- Engine Options:
- 6.0L Vortec V8: Gasoline
- 8.1L Vortec V8: Gasoline
- 6.6L Duramax V8: Turbo Diesel
- Horsepower:
- 6.0L Vortec: Approximately 300 hp
- 8.1L Vortec: Approximately 340 hp
- 6.6L Duramax: Approximately 300 hp
- Fuel Economy: (Estimates, varies greatly based on use)
- Gasoline Engines: 10-14 mpg combined
- Duramax Diesel: 14-18 mpg combined
- 0-60 Times: Not typically published for HD trucks, focus is on torque and towing power. Expect roughly 8-10 seconds with the gasoline engines, slightly slower with the diesel when loaded.
- Towing Capacity:
- Varies greatly depending on configuration (cab, bed, axle ratio), but ranges from approximately 9,000 lbs to 12,000+ lbs. The Duramax diesel offers the highest towing capacity.
- Trim Level Features:
- Base: Vinyl seating, basic AM/FM radio, manual windows/locks.
- SLE: Cloth seating, power windows/locks, upgraded stereo, chrome exterior trim.
- SLT: Leather seating, dual-zone climate control, premium stereo, alloy wheels, fog lights.
2003 GMC Sierra 3500 Specifications
Vehicle Information
| Year | 2003 |
| Make | GMC |
| Model | Sierra 3500 |
| Trim | - |
| Style | Crew Cab 2WD 4-Speed Automatic |
| Type | Pickup Truck |
| Category | Standard Pickup Truck |
Manufacturing Details
| Made In | United States |
| Manufacturing City | FLINT |
Dimensions
| Doors | 4-Door |
| Curb Weight | 5967 pounds |
| Gross Vehicle Weight Rating | 11400 pounds |
| Overall Height | 76.20 inches |
| Overall Length | 256.10 inches |
| Overall Width | 96.10 inches |
| Wheelbase Length | 167.00 inches |
| Standard Seating | 6 |
Engine & Performance
| Engine | 6.6-L V-8 OHV 32V Turbo Diesel |
| Engine Size | 6.6L |
| Engine Cylinders | 8 |
| Transmission | 4-Speed Automatic |
| Transmission Type | Automatic |
| Transmission Speeds | 4-Speed |
| Drivetrain | Rear-Wheel Drive |
Additional Features
| Anti-Brake System | 4-Wheel ABS |
| Steering Type | Recirculating |
Pricing
| Manufacturer Suggested Retail Price (MSRP) | $31,400 |
| Invoice Price | $27,475 |
| Delivery Charges | $815 |
Vehicle History Report
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Analysis
Analysis
What Problems Does the 2003 GMC Sierra 3500 Have?
Frequently reported problems for the 2003 GMC Sierra 3500 include rust, particularly on the lower body panels, wheel wells, and frame. The Duramax diesel engine, while powerful, can experience injector issues and glow plug failures. The Allison automatic transmission, often paired with the Duramax, is generally reliable but requires proper maintenance; neglected transmissions can lead to expensive repairs.
Other common issues involve the front suspension, including worn ball joints and tie rod ends, especially in trucks frequently used for heavy towing. Electrical problems, such as malfunctioning sensors and issues with the gauge cluster, have also been reported.
Recalls for the 2003 Sierra 3500 have included concerns related to fuel leaks and brake light malfunctions. Long-term reliability hinges heavily on maintenance. Neglecting fluid changes, particularly in the transmission and differentials, can significantly shorten the vehicle's lifespan. The 2003 model year falls within a period where GM was addressing some initial issues with the Duramax, so thorough inspection and maintenance records are crucial before purchasing.
Other common issues involve the front suspension, including worn ball joints and tie rod ends, especially in trucks frequently used for heavy towing. Electrical problems, such as malfunctioning sensors and issues with the gauge cluster, have also been reported.
Recalls for the 2003 Sierra 3500 have included concerns related to fuel leaks and brake light malfunctions. Long-term reliability hinges heavily on maintenance. Neglecting fluid changes, particularly in the transmission and differentials, can significantly shorten the vehicle's lifespan. The 2003 model year falls within a period where GM was addressing some initial issues with the Duramax, so thorough inspection and maintenance records are crucial before purchasing.
How long will the 2003 GMC Sierra 3500 last?
A well-maintained 2003 GMC Sierra 3500 can easily reach 200,000 to 300,000 miles or more. With proper care, these trucks can offer 20+ years of service. However, longevity is highly dependent on maintenance. Regular oil changes, transmission servicing, and addressing rust promptly are crucial. The Duramax diesel, in particular, can be very durable if properly maintained. Common long-term weaknesses include rust, front-end suspension wear, and potential electrical issues. Neglect leads to a significantly shorter lifespan, emphasizing the importance of careful inspection and documented maintenance history.
What Technology & Safety Features are Included?
The 2003 GMC Sierra 3500's tech and entertainment features were relatively basic by today's standards. Standard features included an AM/FM radio, and higher trims offered a CD player and cassette player. Optional features included a Bose sound system and OnStar. Driver-assistance features were limited; anti-lock brakes (ABS) were standard, but electronic stability control was not widely available at this time.
Safety features included driver and passenger airbags. Side airbags were not available. Crash test ratings from the NHTSA and IIHS vary depending on cab configuration. Regular cab models often fared worse than extended or crew cab versions due to less structural protection. For example, the NHTSA gave some cab configurations 4 or 5 stars for driver-side frontal impact, but lower ratings for passenger-side impact and rollover resistance.
The 2003 Sierra 3500 lacks modern conveniences like Bluetooth connectivity, navigation systems, or advanced driver-assistance systems (ADAS) such as lane departure warning or blind-spot monitoring. Its focus was primarily on utility and work capabilities rather than advanced technology. The SLT trim offered some luxuries like leather seats and a premium sound system, but the core technology remained relatively simple.
Safety features included driver and passenger airbags. Side airbags were not available. Crash test ratings from the NHTSA and IIHS vary depending on cab configuration. Regular cab models often fared worse than extended or crew cab versions due to less structural protection. For example, the NHTSA gave some cab configurations 4 or 5 stars for driver-side frontal impact, but lower ratings for passenger-side impact and rollover resistance.
The 2003 Sierra 3500 lacks modern conveniences like Bluetooth connectivity, navigation systems, or advanced driver-assistance systems (ADAS) such as lane departure warning or blind-spot monitoring. Its focus was primarily on utility and work capabilities rather than advanced technology. The SLT trim offered some luxuries like leather seats and a premium sound system, but the core technology remained relatively simple.
What Colors Options are Available?
Exterior Colors
Summit White
Onyx Black
Dark Gray Metallic
Silver Birch Metallic
Pewter Metallic
Arrival Blue Metallic
Dark Carmine Red Metallic
Interior Colors
Light Pewter
Graphite
Neutral
2003 GMC Sierra 3500 Prices and Market Value
When new, the 2003 GMC Sierra 3500 ranged from approximately $25,000 to $40,000, depending on the trim level, cab configuration, and engine choice. Today, used market prices vary widely based on condition, mileage, and location. Expect to find them ranging from $5,000 to $15,000 or more, depending on condition.
Depreciation has been significant, but well-maintained Duramax diesel models often hold their value better due to their desirability. Factors affecting resale value include the engine (Duramax commands a premium), cab configuration (crew cabs are more desirable), 4x4 capability, and overall condition (rust-free examples fetch higher prices). Low mileage and documented service history also significantly boost resale value.
Depreciation has been significant, but well-maintained Duramax diesel models often hold their value better due to their desirability. Factors affecting resale value include the engine (Duramax commands a premium), cab configuration (crew cabs are more desirable), 4x4 capability, and overall condition (rust-free examples fetch higher prices). Low mileage and documented service history also significantly boost resale value.
2003 GMC Sierra 3500 Cost of Ownership
The 2003 GMC Sierra 3500 is not an economical vehicle to own. Insurance costs can be moderate to high, depending on coverage and driving record. Fuel costs are substantial, especially with the gasoline engines. Maintenance can be expensive, particularly for the Duramax diesel (injectors, glow plugs). Repairs can be costly due to the heavy-duty components. Rust repair can also add significantly to long-term costs. Overall, expect higher than average ownership costs compared to smaller, more fuel-efficient vehicles.
2003 GMC Sierra 3500 Fuel Efficiency
Fuel Type
Gasoline
Fuel Capacity
34.00 gallons
City Mileage
-
Highway Mileage
-
2003 GMC Sierra 3500 Safety Rating
NHTSA
IIHS
2003 GMC Sierra 3500 Recalls & Defects
Fuel System, Gasoline
Recall date
2006-05-19
Recall no.
06e043000
Source
NHTSA
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).
Notes
This Recall Only Pertains TO Aftermarket Fram Fuel Filters and HAS NO Relation TO ANY Original Equipment Installed ON THE Vehicles Listed.customers MAY Contact THE National Highway Traffic Safety Administration's Vehicle Safety Hotline AT 1-888-327-4236 (Tty: 1-800-424-9153); or GO TO Http://Www.safercar.gov.
2003 GMC Sierra 3500 Warranty
Basic
Original warranty
36 months / 36,000 miles
Estimated remaining
Expired
Powertrain
Original warranty
36 months / 36,000 miles
Estimated remaining
Expired
Rust
Original warranty
72 months / 100,000 miles
Estimated remaining
Expired
2003 GMC Sierra 3500 Insurance
Insurance for a 2003 GMC Sierra 3500 is moderately priced, reflecting its status as a Pickup Truck with strong safety ratings and
reasonable repair costs.
reasonable repair costs.
How Does the 2003 GMC Sierra 3500 Compare to Other Pickup Truck?
The 2003 GMC Sierra 3500's key rivals included the Ford F-350 and the Dodge Ram 3500. In terms of performance, the Duramax diesel was generally considered competitive with Ford's Power Stroke and Dodge's Cummins, offering comparable towing and torque. Feature-wise, the Sierra 3500 was similar to its rivals, with comparable trim levels and available options. Reliability is a mixed bag; all three brands have their share of common issues, with the Sierra 3500 being prone to rust and some diesel-specific problems.
Price-wise, the Sierra 3500 was generally in the same ballpark as its competitors. The Ford F-350 offered similar capabilities and a slightly different driving experience. The Dodge Ram 3500, particularly with the Cummins engine, was also a strong contender.
Whether a better or similar alternative exists depends on individual needs and preferences. If rust is a major concern, a well-maintained example from a less rust-prone region might be preferable. Some argue the Cummins engine in the Dodge Ram is slightly more reliable in the long run, but that's subjective. Ultimately, choosing between these trucks often comes down to personal preference and the specific condition of the used vehicle.
Price-wise, the Sierra 3500 was generally in the same ballpark as its competitors. The Ford F-350 offered similar capabilities and a slightly different driving experience. The Dodge Ram 3500, particularly with the Cummins engine, was also a strong contender.
Whether a better or similar alternative exists depends on individual needs and preferences. If rust is a major concern, a well-maintained example from a less rust-prone region might be preferable. Some argue the Cummins engine in the Dodge Ram is slightly more reliable in the long run, but that's subjective. Ultimately, choosing between these trucks often comes down to personal preference and the specific condition of the used vehicle.
Ranks #454 Truck
| 1 | 2023 Toyota Tundra | (5.0★) |
| 2 | 2022 Honda Ridgeline | (5.0★) |
| 3 | 2023 Ford E-Transit Chassis | (0.0★) |
| 4 | 2020 Mercedes-Benz Sprinter Cab Chassis | (0.0★) |
| 5 | 2024 Chevrolet Silverado 3500HD | (0.0★) |
| 6 | 2023 Hyundai Santa Cruz | (5.0★) |
| 7 | 2023 Nissan Frontier | (5.0★) |
| 8 | 2024 GMC Sierra 2500HD | (0.0★) |
| 9 | 2023 Ram 4500 | (0.0★) |
| 10 | 2022 Jeep Gladiator | (5.0★) |
| 11 | 2012 Suzuki Equator | (0.0★) |
| 12 | 2009 Mitsubishi Raider | (5.0★) |
| 454 | 2003 GMC Sierra 3500 | (0.0★) |
Final Verdict: Is the 2003 GMC Sierra 3500 a Good Pickup Truck?
The 2003 GMC Sierra 3500 is ideal for those needing a robust work truck for towing and hauling, but who don't require the latest technology. It is worth buying *used*, but only after a thorough inspection for rust, maintenance records, and any signs of abuse. The Duramax diesel models are desirable but require careful scrutiny due to potential injector and transmission issues. Look for SLE or SLT trims for added comfort features. Avoid trucks from regions with heavy road salt usage unless rust has been properly addressed. Be prepared for higher-than-average running costs. If you need basic heavy-duty capabilities and find a well-maintained example at a fair price, it can be a worthwhile purchase.
Drew B
Drew is a seasoned automotive expert and contributor to VinCheck.info. With nearly 15 years of experience as a former Porsche technician, he brings a wealth of hands-on knowledge to his writing. Born in North Carolina, a region renowned for its deep-rooted NASCAR culture, Drew developed a passion for cars early in life, often building and working on vehicles from a young age. At VINCheck, Drew leverages his extensive technical background to provide in-depth analyses of various vehicles. His articles often focus on engine performance, reliability, and maintenance insights, offering readers practical information grounded in real-world experience. Some of his notable contributions include reviews on the Mazda CX-5's longevity and detailed examinations of engine options for models like the 2011 Toyota Camry and Tacoma