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2004 GMC Sierra 2500 Overview, Reviews, Ratings & Specs

Rating: 4.12
Based on 12 Owner Reviews â–¶
Simon A | March 31, 2025
The 2004 GMC Sierra 2500 is a heavy-duty pickup truck, part of the second generation of Sierra trucks introduced in 1999. Available in regular, extended, and crew cab body styles, it was offered in trims like the base, SLE, and SLT. Pricing ranged from around $25,000 to $40,000 when new. The Sierra 2500 stood out for its robust towing capabilities and comfortable ride for a heavy-duty truck, making it popular among those needing a workhorse without sacrificing comfort.
The Good

The 2004 GMC Sierra 2500 offers impressive performance thanks to its powerful engine options and robust towing capacity. It has proven reliability, a comfortable cabin (especially in higher trims), and a classic, rugged design. For the practical buyer, it's a capable work truck. Emotionally, it provides a sense of power and dependability.

The Bad

Potential weaknesses of the 2004 GMC Sierra 2500 include rust, particularly in areas with road salt. Watch out for transmission issues, especially with the 4L80E. Some owners have reported electrical problems and issues with the fuel pump. Fuel economy is also naturally poor compared to smaller vehicles.

2004 GMC Sierra 2500: Quick Overview

Key Specs for the 2004 GMC Sierra 2500:

  • Engine Options:
    • 6.0L Vortec V8: Standard engine.
    • 8.1L Vortec V8: Optional for more power.
    • 6.6L Duramax Turbo Diesel V8: The diesel powerhouse.
  • Horsepower:
    • 6.0L Vortec V8: Around 300 hp.
    • 8.1L Vortec V8: Around 340 hp.
    • 6.6L Duramax Turbo Diesel V8: Around 300-330 hp depending on the specific version.
  • Fuel Economy:
    • Gas engines: Expect 10-14 mpg combined.
    • Diesel engine: Slightly better, around 14-18 mpg combined, depending on load and driving style.
  • 0-60 Times:
    • Not a primary focus for this vehicle. Expect 8-10 seconds depending on engine and load.
  • Towing Capacity:
    • Ranges from 8,000 to 12,000+ lbs depending on engine, configuration, and axle ratio. Diesel models generally offer the highest towing capacity.
  • Trim-Level Features:
    • Base: Vinyl seating, basic features.
    • SLE: Cloth seating, upgraded stereo, power windows and locks.
    • SLT: Leather seating, premium stereo, dual-zone climate control, and other comfort features.
  • Transmissions:
    • 4-speed automatic (4L80E typically paired with gas engines).
    • 5-speed Allison automatic (paired with the Duramax diesel).
  • Drivetrain:
    • 2WD or 4WD options available across all trims.

2004 GMC Sierra 2500 Specifications

Vehicle Information
Year 2004
Make GMC
Model Sierra 2500
Trim -
Style 2WD
Type Pickup Truck
Category Standard Pickup Truck
Manufacturing Details
Made In United States
Manufacturing City ROANOKE
Dimensions
Doors 4-Door
Curb Weight 5524 pounds
Gross Vehicle Weight Rating 8600 pounds
Overall Height 74.40 inches
Overall Length 227.70 inches
Overall Width 78.50 inches
Wheelbase Length 143.50 inches
Standard Seating 5
Engine & Performance
Engine 6.0-L V-8 OHV 16V
Engine Size 6L
Engine Cylinders 8
Transmission 4-Speed Automatic
Transmission Type Automatic
Transmission Speeds 4-Speed
Drivetrain Four-Wheel Drive
Additional Features
Anti-Brake System 4-Wheel ABS
Steering Type Recirculating
Pricing
Manufacturer Suggested Retail Price (MSRP) $37,515
Invoice Price $32,826
Delivery Charges $850

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What Problems Does the 2004 GMC Sierra 2500 Have?

Frequently reported problems for the 2004 GMC Sierra 2500 often revolve around rust, especially in areas with salted roads during winter. The rocker panels, cab corners, and wheel wells are particularly susceptible. Transmission issues, specifically with the 4L80E automatic transmission in gas-powered models, are also common, including slipping and hard shifting. Some owners have reported issues with the fuel pump and fuel sending unit, leading to inaccurate fuel gauge readings or fuel starvation.

Electrical problems can arise, ranging from faulty sensors to issues with the instrument cluster. The Duramax diesel engine is generally reliable, but injectors and the fuel injection pump (CP3) can be potential failure points over time. There were recalls for certain 2004 models related to brake light issues and potential problems with the pitman arm, which could affect steering. Long-term reliability can be affected by deferred maintenance. Regular fluid changes (transmission, engine oil, coolant) are crucial to preventing major component failures. The IFS (independent front suspension) can also require maintenance, especially ball joints and tie rod ends, particularly if the truck is used for heavy towing or off-roading.

How long will the 2004 GMC Sierra 2500 last?

With proper maintenance, a 2004 GMC Sierra 2500 can easily reach 200,000 to 300,000 miles. Years of service can extend well beyond 20 years. Durability hinges on consistent upkeep. Regular oil changes, transmission servicing, and addressing rust promptly are essential. Weaknesses that emerge over time include suspension component wear, particularly in the front end. Rust is a significant long-term enemy. The Duramax diesel, if maintained, can be exceptionally durable. However, neglect will significantly shorten its lifespan. The gas engines, while robust, might require more frequent repairs as they age.
Positive Owner Reviews
Jeff
First , I bought gas 6.0 , the diesels are great if you have serious towing needs. You just need to realize no matter how well you maintain a diesel it will at some point have an expensive repair. I've had my truck about 12 years. Regular maintenance , a few batteries , couple sets of tires and a MAF sensor. I tow a couple different trailers and the heaviest is less than 10k loaded. Towing , zero issues , no band aids , no overloads , no equalizing hitch , no sway control. Simply not needed. Drives amazing, stops great, Roughly 10 to 12 MPG towing. Unloaded driving at 60 / 65 on cruise solid 15 to 16 MPG. Yes , it won't pul the hills like a diesel but thats a small price to pay for an absolutely amazing truck. I want a new truck in the worst way but just can't part with this truck. A very good truck if you find a clean well maintained one.
Jeff
First , I bought gas 6.0 , the diesels are great if you have serious towing needs. You just need to realize no matter how well you maintain a diesel it will at some point have an expensive repair. I've had my truck about 12 years. Regular maintenance , a few batteries , couple sets of tires and a MAF sensor. I tow a couple different trailers and the heaviest is less than 10k loaded. Towing , zero issues , no band aids , no overloads , no equalizing hitch , no sway control. Simply not needed. Drives amazing, stops great, Roughly 10 to 12 MPG towing. Unloaded driving at 60 / 65 on cruise solid 15 to 16 MPG. Yes , it won't pul the hills like a diesel but thats a small price to pay for an absolutely amazing truck. I want a new truck in the worst way but just can't part with this truck. A very good truck if you find a clean well maintained one.
Nick
Absolutely love these year GMC early to mid 2000's so dependable and comfortable to drive, just an all around American made truck I wish they would go backwards and start making this style again
Negative Owner Reviews
disappointed
Contacted dealership on a sunday thru email and I have never ever received a response. They must not want to sell a vehicle very badly.

What Technology & Safety Features are Included?

The 2004 GMC Sierra 2500's built-in tech and entertainment features were fairly basic by today's standards. Standard features typically included an AM/FM radio, and higher trims might have a CD player. Optional entertainment upgrades included a Bose premium sound system. Driver-assistance features were limited, with no advanced systems like lane departure warning or blind-spot monitoring available. Safety features included standard airbags (driver and passenger), anti-lock brakes (ABS), and daytime running lights. Some models had optional fog lights.

Crash-test ratings from the NHTSA (National Highway Traffic Safety Administration) for the 2004 GMC Sierra 2500 generally showed acceptable performance for frontal impacts. However, side-impact crash testing was less comprehensive at that time. Optional features impacting safety included adjustable pedals (allowing drivers to maintain a safe distance from the steering wheel and airbag) and OnStar, which provided emergency assistance and vehicle location services. Overall, the 2004 Sierra 2500 prioritized basic safety and utility over advanced technology. Modern vehicles offer a significantly greater array of driver-assistance and safety technologies.

What Colors Options are Available?

Exterior Colors
Summit White
Onyx Black
Dark Gray Metallic
Light Pewter Metallic
Arrival Blue Metallic
Dark Green Metallic
Redfire Metallic
Sand Beige Metallic
Interior Colors
Medium Charcoal Gray
Tan

2004 GMC Sierra 2500 Prices and Market Value

When new, the 2004 GMC Sierra 2500 ranged from approximately $25,000 to $40,000 depending on the cab style, trim level, engine, and options. Current used market prices vary widely based on condition, mileage, and location. Expect to find them ranging from $5,000 to $20,000 or even higher for well-maintained, low-mileage examples, especially Duramax diesel models. Depreciation has been significant, but heavy-duty trucks tend to hold their value better than smaller vehicles. Factors affecting resale value include the engine (diesel commands a premium), 4WD capability, overall condition, rust, and mileage. Low mileage, minimal rust, and a desirable engine configuration will result in the highest resale prices.

2004 GMC Sierra 2500 Cost of Ownership

The 2004 GMC Sierra 2500 is generally not economical to own. Insurance costs can be moderate to high depending on coverage and driving record. Fuel costs are significant, especially with the gas engines. Maintenance and repair costs can be substantial, particularly as the truck ages. Parts can be more expensive compared to smaller vehicles. Long-term ownership requires diligent maintenance to avoid costly repairs. Rust prevention is crucial. Budgeting for unexpected repairs is advisable. Diesel models might have higher initial repair costs but potentially offer better longevity with proper care.

2004 GMC Sierra 2500 Fuel Efficiency

Fuel Type Gasoline
Fuel Capacity 26.00 gallons
City Mileage -
Highway Mileage -

2004 GMC Sierra 2500 Safety Rating

NHTSA
Side Driver Rating
Frontal Passenger Rating
Rollover Rating
Side Rear Passenger Rating
Frontal Driver Rating
IIHS
Rear Crash Protection/Head Restraint Ratings Not Tested
Moderate Overlap Front Test Results Not Tested
Side Impact Test Results Not Tested

2004 GMC Sierra 2500 Recalls & Defects

Equipment Adaptive/Mobility
Recall date 2004-11-26
Recall no. 04v562000
Source NHTSA
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.
Notes Sure-Lok Recall NO. 04e-058.customers CAN Also Contact THE National Highway Traffic Safety Administration's Auto Safety Hotline AT 1-888-dash-2-dot (1-888-327-4236).
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.
Steering
Recall date 2006-02-01
Recall no. 06e010000
Source NHTSA
Summary Certain Fabtech Aftermarket Replacement Pitman Arms, P/Nos. Fts71000 and Fts71001, Installed FOR USE ON Certain 2001-2006 GM C/K 2500 Pick UP Trucks and Sport Utility Vehicles. THE PIN Located Inside THE Pitman ARM CAN Shear OFF DUE TO A Reverse Bending Fatigue Condition, Resulting IN A Total Loss OF Steering Control.
Consequence Loss OF Steering Control Could Lead TO A Vehicle Crash With Potential Injury or Death.
Remedy Fabtech Will Notify Owners and Replace THE Pitman and Idler Arms Free OF Charge. THE Recall IS Expected TO Begin During February 2006. Owners MAY Contact Fabtech AT 909-597-7800.
Notes This Recall Only Pertains TO Aftermarket Fabtech Replacement Pitman Arms and HAS NO Relation TO ANY Original Equipment Installed ON C/K 2500 Pick Ups, Suvs, and Hummer H2 Vehicles Manufactured BY General Motors.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.
Service Brakes, AIR
Recall date 2006-06-06
Recall no. 06e050000
Source NHTSA
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.
Notes This Recall Only Pertains TO Aftermarket National and Carquest HUB Assemblies and HAS NO Relation TO ANY Original Equipment Installed ON Vehicles Manufactured BY General Motors.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.

2004 GMC Sierra 2500 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

2004 GMC Sierra 2500 Insurance

Insurance for a 2004 GMC Sierra 2500 is moderately priced, reflecting its status as a Pickup Truck with strong safety ratings and
reasonable repair costs.

How Does the 2004 GMC Sierra 2500 Compare to Other Pickup Truck?

The 2004 GMC Sierra 2500's key rivals included the Ford F-250 Super Duty and the Dodge Ram 2500. In terms of performance, the Sierra 2500 offered competitive towing and hauling capabilities, especially with the Duramax diesel. The Ford F-250, particularly with the Power Stroke diesel, was a strong contender. The Dodge Ram 2500 offered a more rugged, truck-like feel. In terms of features, the Sierra 2500 was generally on par with its rivals, offering similar levels of comfort and convenience in comparable trim levels. Reliability is a mixed bag. All three trucks have their share of potential issues, but the Duramax engine is often considered a reliable choice. Price-wise, the Sierra 2500 was typically competitive with the F-250 and Ram 2500.

Alternatives to consider include the Chevrolet Silverado 2500, which is mechanically identical to the Sierra 2500 but might offer slightly different styling preferences. A well-maintained Ford F-250 Super Duty with the 7.3L Power Stroke diesel (older) or a later model with the improved 6.0L or 6.4L diesel (with proper maintenance upgrades) could also be a viable alternative if diesel power is a must. The Dodge Ram 2500 offers a different driving experience and styling, appealing to those who prefer a more traditional truck feel.

Ranks #445 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★)
445 2004 GMC Sierra 2500 (5.0★)

Final Verdict: Is the 2004 GMC Sierra 2500 a Good Pickup Truck?

The 2004 GMC Sierra 2500 is ideal for those needing a capable and relatively comfortable heavy-duty truck for towing, hauling, or work purposes. It's worth buying *used* if found in good condition with documented maintenance. The Duramax diesel models are highly desirable but require careful inspection due to potential injector and fuel pump issues. Prioritize trucks with minimal rust, especially in areas prone to corrosion. The SLE and SLT trims offer a more comfortable and feature-rich experience compared to the base model. Thoroughly inspect any potential purchase and have it checked by a trusted mechanic before committing. Avoid trucks with excessive rust or signs of neglect.

2004 GMC Sierra 2500 Owner Reviews

4.12
Consumer Rating, Based on 12 Consumer Reviews
Overall rating
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Jeff on April 1, 2024

Great Truck !

First , I bought gas 6.0 , the diesels are great if you have serious towing needs. You just need to realize no matter how well you maintain a diesel it will at some point have an expensive repair. I've had my truck about 12 years. Regular maintenance , a few batteries , couple sets of tires and a MAF sensor. I tow a couple different trailers and the heaviest is less than 10k loaded. Towing , zero issues , no band aids , no overloads , no equalizing hitch , no sway control. Simply not needed. Drives amazing, stops great, Roughly 10 to 12 MPG towing. Unloaded driving at 60 / 65 on cruise solid 15 to 16 MPG. Yes , it won't pul the hills like a diesel but thats a small price to pay for an absolutely amazing truck. I want a new truck in the worst way but just can't part with this truck. A very good truck if you find a clean well maintained one.

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Chevypu62 on September 18, 2019

Was sold a pack of lies

I was told this truck had been well maintained just to find it had been modified by someone who didn’t know what they were doing AND the transfer case was bone dry and even had dirt in it. Was told it was rust free only to find rust painted over.

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Nick on April 18, 2019

This is my second GMC Sierra but my first with a D

Absolutely love these year GMC early to mid 2000's so dependable and comfortable to drive, just an all around American made truck I wish they would go backwards and start making this style again

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soren93444 on October 14, 2018

Solid Truck

This truck has been really good. It pulls my camp trailer with no problems, very comfortable on long trips, it looks like I will have it for a long time.

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ReneGadeTj on August 22, 2017

great truck for the money.

truck makes great power, pre emmision diesel, and an Allison transmission. tons of interior room, very few common problems arise from the lb7s.

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Mikemid on July 19, 2017

Very reliable pickup

I purchased this pickup 6 years ago. Never once did it break down on me or left me stranded. Mileage is about 13 to 15 based on speed. Very powerfull engine and frame. Hauls very well. Only issue is speedometer gauge issue with 03 to 07 GMC where it can on few days show incorrect speed because gauge cluster sometimes gets stuck. The gauge cluster is about 300 dollars. Other than that, a wonderfull long lasting 4x4 pickup that will not disappoint.

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disappointed on August 25, 2013

Baddddd

Contacted dealership on a sunday thru email and I have never ever received a response. They must not want to sell a vehicle very badly.

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Tuck on April 22, 2012

Great weekly commuter & weekend workhorse!

-This windy input is based on some years of owning various makes & types of trucks & 4x4s prior to purchasing my 2004 GMC w/22K miles in 03/2005 (paid ~$20K & new sticker was $33K)... -7-years later, my base-model non-HD 2500 4x4 has 156K mi. Its aerodynamic design with ext. cab (doubles as a toolbox), LQ-6.0L, & 4L80 trans. has endured workloads that have stranded other trucks while averaging great 3/4-ton truck economy (city-15mpg & hwy-20mpg). Unloaded, the truck effortlessly spins its tires & refuses to downshift while maintaining a ~70mph cruise on hilly hwys. -Routine maintenance & upgrades on this truck can be easily & economically performed by average wrench-turners w/reasonable computer literacy; added to the fact that the GM Vortec & LS-type engines have only improved, adding to increased 2nd-hand & aftermarket support. -Aesthetically, I'm not crazy about the under-bite front bumper or needing fender flares for slightly wider wheels & tires, my cloth seats still look great, but my console lid is now a lift-off.... -I've replaced the recalled gauge cluster & steering shaft. I've also replaced the front hub assys, power steering pump, rear-diff seal, water pump, & crank sensor. To improve fuel mileage, I lessened the intake & exhaust restrictions, lowered the engine & trans temps, upgraded coil packs, & still perform routine maintenance. -From my perspective, automotive wear & tear is so subjective that the true measure of reliability is predictability of failure (not leaving you stranded), coupled with, ease & economy of repair. On that note, it has been my experience that using GM & AC Delco parts will minimize the frequency of repair(s), but bang-for-the-buck, I count myself lucky to own such a great vehicle that doubles flawlessly as a 4wd truck!

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dars on March 31, 2012

junk

These vehicles have the worst made parts ever.Makes me want to buy foreign only!No heat when it was cold and too much heat when its hot out.Very expensive to repair heating and air conditioning.You will have to take out a mortgage on your house.Many things went wrong with the one I owned.

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N. D. on May 30, 2011

reliable truck

it's awesome, incredible. ...........................................................................

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Simon A

Simon is a contributor to VinCheck, where he provides articles and reviews on various automotive topics. His work focuses on delivering accurate and up-to-date information about used cars, helping readers make informed decisions.