The 2005 Workhorse W22 is not a "vehicle" in the traditional sense, but rather a heavy-duty chassis popular for Class A motorhomes and commercial applications like step vans. Produced during the mid-2000s, it's known for its robust body-on-frame design. While it doesn't have trims like a passenger car, its popularity stems from its powerful General Motors Vortec V8 engine and impressive carrying capacity, making it a reliable foundation for various specialized vehicles.
The Good
The 2005 Workhorse W22 offers a powerful GM 8.1L Vortec V8, ensuring strong performance for heavy loads and towing. Its robust chassis design provides excellent reliability and durability, appealing to practical buyers seeking longevity. For emotional buyers, it's the sturdy foundation for adventure-ready RVs, promising stability and confidence on long journeys, though efficiency isn't its strong suit.
The Bad
Known weaknesses for the 2005 Workhorse W22 primarily involve its brake system, with frequent reports of caliper and rotor issues requiring diligent maintenance. Fuel pump failures and dashboard instrument cluster malfunctions are also common. Its large V8 engine, while powerful, is notoriously thirsty, leading to high fuel costs, which is a significant practical consideration.
2005 WORKHORSE W22: Quick Overview
The 2005 Workhorse W22 chassis, primarily used for Class A motorhomes and commercial vehicles, offers robust specifications tailored for heavy-duty applications.
- Engine Options: The primary and most common engine is the General Motors 8.1L (8100 series) Vortec V8 gasoline engine. Some earlier or specialized versions might have used a GM 6.0L Vortec V8 or an Isuzu 6.5L Duramax diesel, but the 8.1L is quintessential for the 2005 W22.
- Horsepower: For the 8.1L Vortec V8, horsepower typically ranges from 340 to 345 hp.
- Torque: Crucially for heavy vehicles, the 8.1L V8 generates substantial torque, usually around 455 lb-ft.
- Fuel Economy: This is a known weakness. Due to its size and weight, fuel economy is very poor, typically ranging from 6 to 10 miles per gallon (mpg), depending heavily on the body installed, load, and driving conditions.
- 0-60 Times: Not applicable for a heavy-duty chassis like the W22. These vehicles are designed for hauling and towing, not acceleration.
- Transmission: Typically paired with the robust Allison 1000 series 5-speed or 6-speed automatic transmission, renowned for its durability in commercial applications.
- Gross Vehicle Weight Rating (GVWR): Varies by specific chassis configuration, but commonly ranges from 18,000 lbs to 22,000 lbs, indicating its significant carrying capacity.
- Gross Combined Weight Rating (GCWR): Also varies, but can be as high as 26,000 lbs, allowing for substantial towing.
- Towing Capacity: Depends on the specific configuration and GVWR, but typically ranges from 4,000 lbs to 5,000 lbs (with a hitch receiver rated for 5,000 lbs, but ultimate capacity is GCWR minus actual vehicle weight).
- Trim-Level Features: As a bare chassis, "trim levels" don't apply directly. However, standard chassis features include a heavy-duty frame, independent front suspension with air springs (often referred to as "Workhorse Ride Enhancement System" or WRES for improved ride), hydraulic power steering, four-wheel hydraulic disc brakes with ABS, and dual heavy-duty batteries. Other features, like cruise control, would be integrated by the final vehicle manufacturer (e.g., RV builder).
2005 WORKHORSE W22 Specifications
Vehicle Information
| Year | 2005 |
| Make | WORKHORSE |
| Model | W22 |
| Trim | - |
| Style | - |
| Type | Recreational Vehicle |
| Category | W22 "W" Heavy Truck Chassis |
Manufacturing Details
| Made In | United States |
| Manufacturing City | HAGERSTOWN |
Dimensions
| Doors | - |
| Curb Weight | - |
| Gross Vehicle Weight Rating | 26000 pounds |
| Overall Height | - |
| Overall Length | - |
| Overall Width | - |
| Wheelbase Length | - |
| Standard Seating | - |
Engine & Performance
| Engine | 8.1-L V-8 OHV 16V |
| Engine Size | 8.1L |
| Engine Cylinders | 8 |
| Transmission | - |
| Transmission Type | - |
| Transmission Speeds | - |
| Drivetrain | Rear-Wheel Drive |
Additional Features
| Anti-Brake System | - |
| Steering Type | - |
Pricing
| Manufacturer Suggested Retail Price (MSRP) | - |
| Invoice Price | - |
| Delivery Charges | - |
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What Problems Does the 2005 WORKHORSE W22 Have?
The 2005 Workhorse W22 chassis is well-regarded for its robust powertrain, but it does have several frequently reported problems and recalls, particularly concerning its braking system. The most notorious issue involves the brake calipers, which were prone to sticking, leading to overheating, accelerated wear of pads and rotors, and sometimes even wheel-end fires. This problem affected multiple model years, including 2005, and resulted in several significant recalls.
Beyond the brakes, owners often report issues with the fuel pump. These pumps can fail prematurely, leading to no-start conditions or stalling while driving. The replacement process can be labor-intensive and costly. Another common complaint centers around the dashboard instrument cluster. Specifically, the speedometer and other gauges can become intermittent or cease functioning altogether due to faulty stepper motors or circuit board issues.
The hydraulic brake booster (hydroboost system) can also develop leaks or reduced assist over time, making braking more difficult. Steering components, such as tie rod ends and ball joints, while heavy-duty, can wear out over extended mileage, especially under the constant stress of a loaded RV or commercial vehicle.
Electrical issues, although less frequent than brake or fuel pump problems, can manifest as intermittent sensor failures or wiring harness degradation. Owners also occasionally report problems with the transmission shifting, though the Allison 1000 is generally very reliable. Due to the age of 2005 models, rust on frame components and exhaust systems can also become a long-term reliability concern, particularly in regions with harsh winter conditions.
Beyond the brakes, owners often report issues with the fuel pump. These pumps can fail prematurely, leading to no-start conditions or stalling while driving. The replacement process can be labor-intensive and costly. Another common complaint centers around the dashboard instrument cluster. Specifically, the speedometer and other gauges can become intermittent or cease functioning altogether due to faulty stepper motors or circuit board issues.
The hydraulic brake booster (hydroboost system) can also develop leaks or reduced assist over time, making braking more difficult. Steering components, such as tie rod ends and ball joints, while heavy-duty, can wear out over extended mileage, especially under the constant stress of a loaded RV or commercial vehicle.
Electrical issues, although less frequent than brake or fuel pump problems, can manifest as intermittent sensor failures or wiring harness degradation. Owners also occasionally report problems with the transmission shifting, though the Allison 1000 is generally very reliable. Due to the age of 2005 models, rust on frame components and exhaust systems can also become a long-term reliability concern, particularly in regions with harsh winter conditions.
How long will the 2005 WORKHORSE W22 last?
The 2005 Workhorse W22 chassis is built for longevity. With diligent maintenance, including regular oil changes, fluid checks, and proactive attention to known issues, these chassis can easily achieve 150,000 to 250,000 miles or more, especially when used for recreational vehicles that often see less strenuous daily driving than commercial trucks. Many owners report years of reliable service well beyond 15 years.
Long-term durability is a strong point for the engine and transmission, both designed for heavy-duty use. However, weaknesses emerge over time, primarily with the braking system, fuel pump, and aging electrical components. Suspension components like bushings, shocks, and steering linkages will eventually require replacement due to wear from age and load. Rust can also become a significant factor in older chassis, compromising structural integrity if not addressed.
Long-term durability is a strong point for the engine and transmission, both designed for heavy-duty use. However, weaknesses emerge over time, primarily with the braking system, fuel pump, and aging electrical components. Suspension components like bushings, shocks, and steering linkages will eventually require replacement due to wear from age and load. Rust can also become a significant factor in older chassis, compromising structural integrity if not addressed.
What Technology & Safety Features are Included?
As a bare chassis, the 2005 Workhorse W22 offers a utilitarian foundation rather than sophisticated built-in tech or entertainment features. Most of these aspects would be integrated by the final vehicle manufacturer (e.g., an RV builder or commercial truck upfitter).
Built-in Tech & Entertainment:
Driver-Assistance Features:
Safety Features:
Crash-Test Ratings:
Crash-test ratings are typically not conducted for bare chassis like the Workhorse W22. The safety performance would be entirely dependent on the completed vehicle's design, engineering, and manufacturing by the RV or commercial vehicle builder, which often lack standardized third-party crash tests due to their specialized and low-volume nature.
Built-in Tech & Entertainment:
- Chassis-level Tech: Primarily consists of basic instrumentation for engine RPM, speed, fuel level, oil pressure, and coolant temperature. Some models might feature an early iteration of a diagnostic port (OBD-II) for engine management.
- Entertainment: None provided by the bare chassis. Any radio, CD player, or advanced infotainment would be installed by the RV or commercial body manufacturer.
Driver-Assistance Features:
- Basic Cruise Control: Often a standard or common optional feature integrated by the final manufacturer, utilizing the chassis's electronic throttle control.
- Power Steering: Hydraulic power steering is standard, making the heavy vehicle manageable to maneuver.
- No Advanced Systems: Features like lane keeping assist, adaptive cruise control, blind-spot monitoring, or parking assist were not available on this type of heavy-duty chassis from this era.
Safety Features:
- Anti-lock Braking System (ABS): A crucial standard safety feature, providing improved control during hard braking by preventing wheel lock-up. This system is hydraulically actuated.
- Heavy-Duty Frame: The robust ladder frame provides significant passive safety and structural integrity in the event of a collision.
- Daytime Running Lights: Likely standard, enhancing visibility.
- Airbags: Airbags (driver and sometimes passenger) would be incorporated by the final manufacturer, not inherent to the bare chassis, as the cab structure is added later.
- Tire Pressure Monitoring System (TPMS): Not standard for this model year or class of chassis.
Crash-Test Ratings:
Crash-test ratings are typically not conducted for bare chassis like the Workhorse W22. The safety performance would be entirely dependent on the completed vehicle's design, engineering, and manufacturing by the RV or commercial vehicle builder, which often lack standardized third-party crash tests due to their specialized and low-volume nature.
What Colors Options are Available?
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In the meantime, feel free to explore the other sections for more content.
2005 WORKHORSE W22 Prices and Market Value
When new, the 2005 Workhorse W22 chassis was sold to manufacturers, not directly to consumers. A bare chassis would typically cost OEMs in the range of $30,000 to $50,000. Consumers would then purchase a complete vehicle, such as a Class A RV, built upon this chassis, with new prices often ranging from $100,000 to over $250,000 depending on the builder and amenities.
Current used market prices for a 2005 Workhorse W22-based RV vary wildly, from $20,000 to $60,000+, heavily influenced by the condition of the RV body, interior amenities, mileage, and maintenance history. Depreciation for RVs is substantial, especially for models over a decade old. Factors affecting resale value include the overall condition of the coach (no water damage is critical), functionality of all systems (appliances, generator), and clear maintenance records for the chassis, particularly concerning brake and fuel system repairs.
Current used market prices for a 2005 Workhorse W22-based RV vary wildly, from $20,000 to $60,000+, heavily influenced by the condition of the RV body, interior amenities, mileage, and maintenance history. Depreciation for RVs is substantial, especially for models over a decade old. Factors affecting resale value include the overall condition of the coach (no water damage is critical), functionality of all systems (appliances, generator), and clear maintenance records for the chassis, particularly concerning brake and fuel system repairs.
2005 WORKHORSE W22 Cost of Ownership
Long-term ownership of a 2005 Workhorse W22-based vehicle is generally costly. Fuel expenses are significant due to the thirsty 8.1L V8, often delivering single-digit MPG. Insurance costs for large RVs can be moderate to high, varying by coverage and location. Maintenance can be substantial, especially addressing known issues like recurring brake problems and fuel pump failures. Parts, while mostly GM-based, can be expensive for heavy-duty components. Labor costs for specialized RV service centers are also a factor. Therefore, it is not an economical vehicle to own; prospective buyers should budget generously for fuel, proactive maintenance, and potential repairs.
2005 WORKHORSE W22 Fuel Efficiency
Fuel Type
Gasoline
Fuel Capacity
-
City Mileage
-
Highway Mileage
-
2005 WORKHORSE W22 Warranty
Basic
Original warranty
0 months / No data
Estimated remaining
Expired
Powertrain
Original warranty
0 months / No data
Estimated remaining
Expired
Rust
Original warranty
0 months / No data
Estimated remaining
Expired
2005 WORKHORSE W22 Insurance
Insurance for a 2005 WORKHORSE W22 is moderately priced, reflecting its status as a Recreational Vehicle with strong safety ratings and
reasonable repair costs.
reasonable repair costs.
How Does the 2005 WORKHORSE W22 Compare to Other Recreational Vehicle?
The 2005 Workhorse W22 primarily competes with the Ford F-53 chassis in the Class A motorhome market. Both are gasoline-powered, heavy-duty platforms designed to support large recreational vehicles.
Performance: The W22, with its GM 8.1L Vortec V8, offers robust torque and horsepower (340-345 hp, 455 lb-ft) for excellent hill-climbing and towing. The Ford F-53, typically equipped with Ford's 6.8L Triton V10, offers comparable power (around 310-362 hp, 425-457 lb-ft), often perceived as slightly smoother or quieter by some, though the 8.1L has a loyal following for its raw power. Both are adequate for the task.
Features: Both chassis offer similar core features: heavy-duty frames, automatic transmissions (Allison for Workhorse, TorqShift for Ford), and ABS. Workhorse often boasted an independent front suspension (WRES) for a slightly better ride quality compared to the F-53's solid front axle, which is a key differentiator. Neither offers advanced driver-assistance features from this era.
Reliability: The W22 is known for its strong 8.1L engine and Allison transmission, which are generally very reliable. However, its Achilles' heel is the recurrent brake system issues (calipers, rotors, hydroboost) and fuel pump failures. The Ford F-53's V10 is also very durable, but can experience spark plug ejection issues (especially in earlier models) and exhaust manifold leaks. Brake reliability is generally considered better on the Ford, though not without its own issues.
Price: As chassis, their new prices were competitive for OEMs. On the used market, RVs built on either chassis from 2005 will have similar depreciation curves. The overall condition of the RV body and interior typically dictates the used price more than the chassis brand.
Recommendation:
For those prioritizing a slightly smoother ride and exceptional powertrain reliability (engine/transmission), the Workhorse W22 is a strong contender, provided its known brake issues have been thoroughly addressed and documented. If you prioritize simpler maintenance for brake components and a solid front axle, the Ford F-53 is a reliable alternative. Spartan chassis, while more premium and often diesel-powered, would be a "better" alternative for high-end RVs, but in a different price and class category. For gasoline Class A, both Workhorse W22 and Ford F-53 are solid choices; the decision often comes down to specific maintenance history and perceived ride quality.
Performance: The W22, with its GM 8.1L Vortec V8, offers robust torque and horsepower (340-345 hp, 455 lb-ft) for excellent hill-climbing and towing. The Ford F-53, typically equipped with Ford's 6.8L Triton V10, offers comparable power (around 310-362 hp, 425-457 lb-ft), often perceived as slightly smoother or quieter by some, though the 8.1L has a loyal following for its raw power. Both are adequate for the task.
Features: Both chassis offer similar core features: heavy-duty frames, automatic transmissions (Allison for Workhorse, TorqShift for Ford), and ABS. Workhorse often boasted an independent front suspension (WRES) for a slightly better ride quality compared to the F-53's solid front axle, which is a key differentiator. Neither offers advanced driver-assistance features from this era.
Reliability: The W22 is known for its strong 8.1L engine and Allison transmission, which are generally very reliable. However, its Achilles' heel is the recurrent brake system issues (calipers, rotors, hydroboost) and fuel pump failures. The Ford F-53's V10 is also very durable, but can experience spark plug ejection issues (especially in earlier models) and exhaust manifold leaks. Brake reliability is generally considered better on the Ford, though not without its own issues.
Price: As chassis, their new prices were competitive for OEMs. On the used market, RVs built on either chassis from 2005 will have similar depreciation curves. The overall condition of the RV body and interior typically dictates the used price more than the chassis brand.
Recommendation:
For those prioritizing a slightly smoother ride and exceptional powertrain reliability (engine/transmission), the Workhorse W22 is a strong contender, provided its known brake issues have been thoroughly addressed and documented. If you prioritize simpler maintenance for brake components and a solid front axle, the Ford F-53 is a reliable alternative. Spartan chassis, while more premium and often diesel-powered, would be a "better" alternative for high-end RVs, but in a different price and class category. For gasoline Class A, both Workhorse W22 and Ford F-53 are solid choices; the decision often comes down to specific maintenance history and perceived ride quality.
Final Verdict: Is the 2005 WORKHORSE W22 a Good Recreational Vehicle?
The 2005 Workhorse W22 chassis is ideal for individuals or businesses seeking a robust and powerful foundation for a heavy Class A motorhome or a commercial step van. Its GM 8.1L Vortec V8 and Allison transmission provide exceptional power and durability for hauling substantial loads and tackling challenging terrains. It's particularly suited for those who appreciate a slightly more refined ride courtesy of its independent front suspension.
Is it worth buying? Yes, but with significant caveats. As a used purchase, it can offer tremendous value as a base for an RV, provided its known weaknesses, especially the brake system and fuel pump, have been meticulously addressed by previous owners and are verifiable through service records. A pre-purchase inspection by a mechanic familiar with these chassis is essential. Avoid models with neglected maintenance or unresolved brake recall issues. If found in good condition with a solid maintenance history, a W22-based RV can provide many more years of reliable service.
Is it worth buying? Yes, but with significant caveats. As a used purchase, it can offer tremendous value as a base for an RV, provided its known weaknesses, especially the brake system and fuel pump, have been meticulously addressed by previous owners and are verifiable through service records. A pre-purchase inspection by a mechanic familiar with these chassis is essential. Avoid models with neglected maintenance or unresolved brake recall issues. If found in good condition with a solid maintenance history, a W22-based RV can provide many more years of reliable service.
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