The 2004 Chevrolet Trailblazer EXT is a full-size, extended-wheelbase SUV that was part of Chevrolet's Trailblazer line, produced from 2002 to 2009. This particular model year offered robust towing capabilities and spacious interiors, making it a popular choice for families and those needing hauling power. Key trims often included the LS, LT, and the more upscale LTZ. New, it ranged from approximately $35,000 to $45,000 depending on configuration. Its popularity stemmed from its strong V8 engine options and the practicality of its extended length.
The Good
The 2004 Trailblazer EXT boasts strong V8 engine performance for confident hauling and passing, a comfortable and spacious ride for families, and a rugged exterior appealing to practicality. Its ample cargo space and towing capacity offer significant value for active lifestyles.
The Bad
Potential buyers should watch for transmission issues, particularly concerning the 4L60E automatic transmission. Fuel economy is also a significant drawback. Electrical gremlins and rust, especially around the rear wheel wells and rocker panels, are common concerns to inspect.
2004 Chevrolet Trailblazer EXT: Quick Overview
- Engine Options: The 2004 Chevrolet Trailblazer EXT was primarily offered with two engine choices:
- 4.2L Inline-6 Vortec engine
- 5.3L V8 Vortec engine
- Horsepower:
- 4.2L I6: Approximately 275 hp @ 6000 rpm
- 5.3L V8: Approximately 290 hp @ 5200 rpm
- Fuel Economy (EPA Estimates):
- 4.2L I6 (RWD): ~15 mpg city / 20 mpg highway
- 4.2L I6 (4WD): ~14 mpg city / 19 mpg highway
- 5.3L V8 (RWD): ~13 mpg city / 17 mpg highway
- 5.3L V8 (4WD): ~13 mpg city / 16 mpg highway
- 0-60 Times:
- 4.2L I6: Roughly 8.5 - 9.5 seconds
- 5.3L V8: Roughly 7.5 - 8.5 seconds
- Towing Capacity:
- Equipped with the factory towing package, the Trailblazer EXT could tow up to 7,000 lbs (3,175 kg) for the I6 engine and up to 7,700 lbs (3,493 kg) for the V8 engine.
- Trim-Level Features (Generalizations):
- LS: Typically included power windows, locks, and mirrors; air conditioning; cruise control; AM/FM stereo with CD player; 6-way power driver's seat; 17-inch wheels.
- LT: Added premium cloth upholstery; steering wheel audio controls; fog lamps; roof rack cross rails; optional leather seating; enhanced audio system; dual-zone climate control.
- LTZ: The top trim usually featured leather-appointed seating; heated front seats; a premium Bose audio system; driver-side memory seat; automatic climate control; automatic headlights; optional sunroof.
2004 Chevrolet Trailblazer EXT Specifications
Vehicle Information
| Year | 2004 |
| Make | Chevrolet |
| Model | Trailblazer EXT |
| Trim | - |
| Style | SUV |
| Type | Sport Utility Vehicle |
| Category | Standard Sport Utility Vehicle |
Manufacturing Details
| Made In | United States |
| Manufacturing City | OKLAHOMA CITY |
Dimensions
| Doors | 4-Door |
| Curb Weight | 4954 pounds |
| Gross Vehicle Weight Rating | 6400 pounds |
| Overall Height | 77.10 inches |
| Overall Length | 207.80 inches |
| Overall Width | 74.70 inches |
| Wheelbase Length | 129.00 inches |
| Standard Seating | 7 |
Engine & Performance
| Engine | 4.2L I6 |
| Engine Size | 4.2L |
| Engine Cylinders | 6 |
| 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 | Rack & Pinion |
Pricing
| Manufacturer Suggested Retail Price (MSRP) | $34,220 |
| Invoice Price | $30,969 |
| Delivery Charges | $685 |
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What Problems Does the 2004 Chevrolet Trailblazer EXT Have?
The 2004 Chevrolet Trailblazer EXT, like many vehicles of its era, has a history of commonly reported issues that owners should be aware of. One of the most significant concerns revolves around the automatic transmission, particularly the 4L60E. Failures or rough shifting can occur, often stemming from worn internal components or torque converter problems. Addressing these issues promptly can prevent more extensive damage.
Another prevalent problem is the failure of the radiator's plastic end tanks, which can lead to coolant leaks and potential overheating. This is often exacerbated by the design where the transmission cooler is integrated into the radiator.
Electrical gremlins are also frequently cited. This can range from malfunctioning power windows and locks to issues with the instrument cluster, HVAC controls, or the anti-lock braking system (ABS) module. The Body Control Module (BCM) has also been known to fail, leading to a cascade of electrical problems.
Regarding recalls, owners should always check the NHTSA website for any outstanding recalls specific to their VIN. Common recalls for this generation of Trailblazer have sometimes involved issues with the airbag system, fuel system components, or potential fire hazards under the hood.
Rust is a significant long-term reliability concern, especially in regions with harsh winters. Areas prone to corrosion include the rocker panels, rear quarter panels, and the frame rails. Thorough inspection for rust is crucial when purchasing a used model.
While the 4.2L inline-six engine is generally considered more reliable than the V8 for some, both can experience issues. Spark plug blowouts are a known problem with the V8, and intake manifold leaks can occur on both engines, leading to vacuum leaks and performance issues. The fuel pump can also be a source of failure over time.
Long-term reliability is often a mixed bag. While some owners report extensive trouble-free mileage with diligent maintenance, others face a steady stream of repairs. The complexity of the vehicle, especially with its various electronic systems, can make repairs costly. Paying close attention to the maintenance history and having a pre-purchase inspection by a qualified mechanic is highly recommended.
Another prevalent problem is the failure of the radiator's plastic end tanks, which can lead to coolant leaks and potential overheating. This is often exacerbated by the design where the transmission cooler is integrated into the radiator.
Electrical gremlins are also frequently cited. This can range from malfunctioning power windows and locks to issues with the instrument cluster, HVAC controls, or the anti-lock braking system (ABS) module. The Body Control Module (BCM) has also been known to fail, leading to a cascade of electrical problems.
Regarding recalls, owners should always check the NHTSA website for any outstanding recalls specific to their VIN. Common recalls for this generation of Trailblazer have sometimes involved issues with the airbag system, fuel system components, or potential fire hazards under the hood.
Rust is a significant long-term reliability concern, especially in regions with harsh winters. Areas prone to corrosion include the rocker panels, rear quarter panels, and the frame rails. Thorough inspection for rust is crucial when purchasing a used model.
While the 4.2L inline-six engine is generally considered more reliable than the V8 for some, both can experience issues. Spark plug blowouts are a known problem with the V8, and intake manifold leaks can occur on both engines, leading to vacuum leaks and performance issues. The fuel pump can also be a source of failure over time.
Long-term reliability is often a mixed bag. While some owners report extensive trouble-free mileage with diligent maintenance, others face a steady stream of repairs. The complexity of the vehicle, especially with its various electronic systems, can make repairs costly. Paying close attention to the maintenance history and having a pre-purchase inspection by a qualified mechanic is highly recommended.
How long will the 2004 Chevrolet Trailblazer EXT last?
Based on owner data and typical maintenance habits, a 2004 Chevrolet Trailblazer EXT, when well-maintained, can reasonably be expected to last between 150,000 and 200,000 miles or more. Many owners have reported reaching or exceeding these figures. However, long-term durability is heavily influenced by the type and quality of maintenance performed.
Weaknesses that tend to surface over time include potential transmission issues, especially if fluid changes were neglected. Cooling system components, like the radiator, can become problematic. Electrical systems can also develop quirks as the vehicle ages. Rust is a significant factor that can limit the lifespan of the vehicle's body and frame if not addressed.
Vehicles driven primarily in harsh climates or those subjected to heavy towing without proper upkeep may have a shorter service life. Conversely, vehicles used in milder climates with regular servicing, fluid changes, and timely attention to minor issues often demonstrate greater longevity.
Weaknesses that tend to surface over time include potential transmission issues, especially if fluid changes were neglected. Cooling system components, like the radiator, can become problematic. Electrical systems can also develop quirks as the vehicle ages. Rust is a significant factor that can limit the lifespan of the vehicle's body and frame if not addressed.
Vehicles driven primarily in harsh climates or those subjected to heavy towing without proper upkeep may have a shorter service life. Conversely, vehicles used in milder climates with regular servicing, fluid changes, and timely attention to minor issues often demonstrate greater longevity.
What Technology & Safety Features are Included?
The 2004 Chevrolet Trailblazer EXT offered a respectable array of technology, entertainment, and safety features for its time, though it predates many of today's advanced systems.
Technology and Entertainment: Standard entertainment typically included an AM/FM stereo with a CD player. Higher trims, like the LT and LTZ, often came with upgraded audio systems, sometimes from Bose, offering a richer sound experience. Steering wheel-mounted audio controls were a common convenience feature on higher trims, allowing drivers to adjust volume and tracks without taking their hands off the wheel. For families, the optional rear-seat entertainment system, usually consisting of a flip-down screen and DVD player, was a popular addition, providing hours of distraction on long journeys.
Driver-Assistance Features: Driver-assistance features were minimal by modern standards. Cruise control was standard on most trims. Some models might have featured automatic headlights, which could be a convenience for driving at dawn and dusk. Parking assistance systems were not common in 2004.
Safety Features: Standard safety equipment included anti-lock brakes (ABS) on all four wheels, which helped maintain steering control during hard braking. Front-seat airbags were standard, designed to protect occupants in a frontal collision. Side-impact airbags were often an optional feature, particularly for the front seats, and curtain airbags for the second and third rows were less common or not available on all configurations. Traction control was available, especially on 4WD models, to help prevent wheel spin on slippery surfaces.
Crash-Test Ratings: The 2004 Chevrolet Trailblazer (including the EXT variant) generally performed well in government crash tests conducted by the National Highway Traffic Safety Administration (NHTSA) for its era. It typically received four out of five stars for frontal driver and passenger impacts, indicating good protection in a head-on collision. Side-impact test results were also generally good, often receiving four stars. However, it's important to note that these ratings reflect the testing standards of the mid-2000s and may not be directly comparable to current safety benchmarks. The vehicle's robust body-on-frame construction contributed to its crashworthiness.
Technology and Entertainment: Standard entertainment typically included an AM/FM stereo with a CD player. Higher trims, like the LT and LTZ, often came with upgraded audio systems, sometimes from Bose, offering a richer sound experience. Steering wheel-mounted audio controls were a common convenience feature on higher trims, allowing drivers to adjust volume and tracks without taking their hands off the wheel. For families, the optional rear-seat entertainment system, usually consisting of a flip-down screen and DVD player, was a popular addition, providing hours of distraction on long journeys.
Driver-Assistance Features: Driver-assistance features were minimal by modern standards. Cruise control was standard on most trims. Some models might have featured automatic headlights, which could be a convenience for driving at dawn and dusk. Parking assistance systems were not common in 2004.
Safety Features: Standard safety equipment included anti-lock brakes (ABS) on all four wheels, which helped maintain steering control during hard braking. Front-seat airbags were standard, designed to protect occupants in a frontal collision. Side-impact airbags were often an optional feature, particularly for the front seats, and curtain airbags for the second and third rows were less common or not available on all configurations. Traction control was available, especially on 4WD models, to help prevent wheel spin on slippery surfaces.
Crash-Test Ratings: The 2004 Chevrolet Trailblazer (including the EXT variant) generally performed well in government crash tests conducted by the National Highway Traffic Safety Administration (NHTSA) for its era. It typically received four out of five stars for frontal driver and passenger impacts, indicating good protection in a head-on collision. Side-impact test results were also generally good, often receiving four stars. However, it's important to note that these ratings reflect the testing standards of the mid-2000s and may not be directly comparable to current safety benchmarks. The vehicle's robust body-on-frame construction contributed to its crashworthiness.
What Colors Options are Available?
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2004 Chevrolet Trailblazer EXT Prices and Market Value
When new, the 2004 Chevrolet Trailblazer EXT had an original MSRP typically ranging from approximately $35,000 for a base LS model to over $45,000 for a loaded LTZ trim with optional features and four-wheel drive.
In the current used market, the 2004 Trailblazer EXT can be found for anywhere from $2,000 to $7,000, with prices heavily dependent on mileage, condition, trim level, and maintenance history. Vehicles with significantly higher mileage or known mechanical issues will be at the lower end of this spectrum.
Depreciation for the Trailblazer EXT was substantial, as is common for large SUVs. The initial rapid depreciation has largely occurred, meaning that at this age, its value is primarily determined by its condition rather than a steep ongoing decline. Factors significantly affecting resale value include the presence of rust, the condition of the transmission and engine, overall cosmetic appearance, and whether it has been a one-owner vehicle with a documented service history.
In the current used market, the 2004 Trailblazer EXT can be found for anywhere from $2,000 to $7,000, with prices heavily dependent on mileage, condition, trim level, and maintenance history. Vehicles with significantly higher mileage or known mechanical issues will be at the lower end of this spectrum.
Depreciation for the Trailblazer EXT was substantial, as is common for large SUVs. The initial rapid depreciation has largely occurred, meaning that at this age, its value is primarily determined by its condition rather than a steep ongoing decline. Factors significantly affecting resale value include the presence of rust, the condition of the transmission and engine, overall cosmetic appearance, and whether it has been a one-owner vehicle with a documented service history.
2004 Chevrolet Trailblazer EXT Cost of Ownership
Owning a 2004 Chevrolet Trailblazer EXT is generally considered moderately costly, primarily due to its fuel consumption and potential repair expenses.
Fuel: Its V8 engine, in particular, is thirsty, with fuel economy often in the low teens for city driving, making it expensive to run daily.
Insurance: Insurance costs can vary but are typically in line with other full-size SUVs of its class.
Maintenance & Repair: Regular maintenance is crucial. However, common issues like transmission problems, electrical gremlins, and potential rust can lead to significant repair bills. Parts availability is generally good, but specialized repairs can be costly.
Overall, while it offers utility, it is not an economical vehicle to own, especially if unexpected repairs arise. Budgeting for higher fuel and potential repair costs is advisable.
Fuel: Its V8 engine, in particular, is thirsty, with fuel economy often in the low teens for city driving, making it expensive to run daily.
Insurance: Insurance costs can vary but are typically in line with other full-size SUVs of its class.
Maintenance & Repair: Regular maintenance is crucial. However, common issues like transmission problems, electrical gremlins, and potential rust can lead to significant repair bills. Parts availability is generally good, but specialized repairs can be costly.
Overall, while it offers utility, it is not an economical vehicle to own, especially if unexpected repairs arise. Budgeting for higher fuel and potential repair costs is advisable.
2004 Chevrolet Trailblazer EXT Fuel Efficiency
Fuel Type
Gasoline
Fuel Capacity
16 gallons
City Mileage
14 miles/gallon
Highway Mileage
19 miles/gallon
2004 Chevrolet Trailblazer EXT Safety Rating
NHTSA
IIHS
2004 Chevrolet Trailblazer EXT 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 Chevrolet Trailblazer EXT Insurance
Insurance for a 2004 Chevrolet Trailblazer EXT is moderately priced, reflecting its status as a Sport Utility Vehicle with strong safety ratings and
reasonable repair costs.
reasonable repair costs.
How Does the 2004 Chevrolet Trailblazer EXT Compare to Other Sport Utility Vehicle?
The 2004 Chevrolet Trailblazer EXT competed in the robust full-size SUV segment against rivals like the Ford Explorer (especially the extended Eddie Bauer version), Toyota 4Runner, Nissan Pathfinder, and the GMC Envoy XL (a corporate sibling).
Performance: In terms of raw power, the Trailblazer EXT's available 5.3L V8 engine was competitive, often outperforming the base engines of many rivals. Its towing capacity was also a strong suit, making it a capable hauler. The 4.2L inline-six offered a good balance of power and slightly better, though still poor, fuel economy.
Features: For its era, the Trailblazer EXT offered a decent feature set, particularly in higher trims with options like Bose audio and rear-seat entertainment. However, competitors like the Toyota 4Runner were beginning to offer more advanced off-road capabilities and a more refined interior. The Ford Explorer offered a similar spaciousness but sometimes lagged in powertrain refinement.
Reliability: This is where the Trailblazer EXT often faltered compared to rivals. While the 4.2L I6 had a reputation for being relatively durable, the V8 and particularly the automatic transmissions were prone to issues, which was a common complaint that impacted owner satisfaction and long-term reliability compared to the generally stellar reputation of the Toyota 4Runner. The Nissan Pathfinder also had its share of transmission woes in certain model years.
Price: When new, prices were competitive within the segment. On the used market, the Trailblazer EXT is often one of the more affordable options among these SUVs, reflecting its reliability concerns.
Alternatives: For buyers prioritizing reliability and longevity above all else, the Toyota 4Runner is an excellent alternative, though it often commands a higher used price and may offer less cargo space in its non-extended variants. If a more car-like driving experience and better fuel efficiency are desired, the Ford Explorer or Nissan Pathfinder (depending on the year and engine) could be considered, though transmission reliability should be carefully researched for those models. For a similar utilitarian approach with potentially better build quality, a used Jeep Grand Cherokee might also be an option, but again, research specific model years for common issues.
Performance: In terms of raw power, the Trailblazer EXT's available 5.3L V8 engine was competitive, often outperforming the base engines of many rivals. Its towing capacity was also a strong suit, making it a capable hauler. The 4.2L inline-six offered a good balance of power and slightly better, though still poor, fuel economy.
Features: For its era, the Trailblazer EXT offered a decent feature set, particularly in higher trims with options like Bose audio and rear-seat entertainment. However, competitors like the Toyota 4Runner were beginning to offer more advanced off-road capabilities and a more refined interior. The Ford Explorer offered a similar spaciousness but sometimes lagged in powertrain refinement.
Reliability: This is where the Trailblazer EXT often faltered compared to rivals. While the 4.2L I6 had a reputation for being relatively durable, the V8 and particularly the automatic transmissions were prone to issues, which was a common complaint that impacted owner satisfaction and long-term reliability compared to the generally stellar reputation of the Toyota 4Runner. The Nissan Pathfinder also had its share of transmission woes in certain model years.
Price: When new, prices were competitive within the segment. On the used market, the Trailblazer EXT is often one of the more affordable options among these SUVs, reflecting its reliability concerns.
Alternatives: For buyers prioritizing reliability and longevity above all else, the Toyota 4Runner is an excellent alternative, though it often commands a higher used price and may offer less cargo space in its non-extended variants. If a more car-like driving experience and better fuel efficiency are desired, the Ford Explorer or Nissan Pathfinder (depending on the year and engine) could be considered, though transmission reliability should be carefully researched for those models. For a similar utilitarian approach with potentially better build quality, a used Jeep Grand Cherokee might also be an option, but again, research specific model years for common issues.
Final Verdict: Is the 2004 Chevrolet Trailblazer EXT a Good Sport Utility Vehicle?
The 2004 Chevrolet Trailblazer EXT is ideal for budget-conscious buyers who need substantial cargo space and towing capability but can tolerate potential maintenance costs and poor fuel economy. It's well-suited for families needing a versatile vehicle for hauling gear or for occasional towing duties where a lower upfront purchase price is a priority.
Whether it's worth buying heavily depends on the specific vehicle's condition and price. Buying new is not recommended given its age and replaced status. When considering a used model, thorough pre-purchase inspection is paramount, focusing on transmission health, rust, and electrical systems. Opting for an LT or LTZ trim might offer more creature comforts. It can be a decent value if found in excellent condition with low mileage for its age and purchased at a significantly discounted price, allowing for a buffer for potential repairs.
Whether it's worth buying heavily depends on the specific vehicle's condition and price. Buying new is not recommended given its age and replaced status. When considering a used model, thorough pre-purchase inspection is paramount, focusing on transmission health, rust, and electrical systems. Opting for an LT or LTZ trim might offer more creature comforts. It can be a decent value if found in excellent condition with low mileage for its age and purchased at a significantly discounted price, allowing for a buffer for potential repairs.
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.