The 1999 GMC Sonoma, a compact pickup truck, was part of a generation that ran from 1994 to 2004. Available as a regular cab, extended cab, or crew cab, it offered a solid balance of utility and maneuverability. Key trims included the SLE and the sportier SLS. Its popularity stemmed from its smaller footprint compared to full-size trucks, making it more accessible for urban driving and parking, while still providing adequate hauling and towing capabilities for many tasks. Pricing at launch ranged from approximately $15,000 to $24,000.
The Good
The 1999 Sonoma offered dependable performance with its available V6 engines, a reputation for solid reliability, and a comfortable, car-like ride for its class. Its practical value was undeniable, providing good fuel efficiency for a truck, while its approachable size appealed to those seeking utility without the bulk.
The Bad
Potential buyers of the 1999 GMC Sonoma should be aware of common issues like interior wear and tear, potential rust on the body panels, and some reports of electrical gremlins or suspension component wear over time. Transmission issues, though not universal, can also be a concern on higher mileage examples.
1999 GMC Sonoma: Quick Overview
- Engine Options: The 1999 GMC Sonoma was offered with a choice of two main engines.
- 2.2L Inline-4 (L43): This was the standard engine for most trims.
Horsepower: Approximately 118 hp @ 4800 rpm
Torque: Approximately 130 lb-ft @ 3200 rpm - 4.3L V6 (L35): An optional and highly recommended engine, particularly for better performance and towing.
Horsepower: Approximately 180-190 hp @ 4400 rpm
Torque: Approximately 245-250 lb-ft @ 2800 rpm
- 2.2L Inline-4 (L43): This was the standard engine for most trims.
- Fuel Economy:
The fuel economy varied depending on the engine, transmission, and drivetrain (2WD or 4WD). For the 2.2L 4-cylinder, expect around 20-23 mpg city and 26-30 mpg highway. The 4.3L V6 would see figures in the range of 17-20 mpg city and 22-26 mpg highway. - 0-60 Times:
With the 2.2L engine, 0-60 mph times were generally in the 10-12 second range. The more potent 4.3L V6 could achieve 0-60 mph in approximately 8-9 seconds, making it significantly quicker. - Towing Capacity:
Towing capacity varied greatly by configuration, including engine, axle ratio, and optional towing packages. Properly equipped Sonomas with the 4.3L V6 could tow up to approximately 6,000-6,500 pounds. The 4-cylinder models had lower capacities, often around 3,000-4,000 pounds. - Trim-Level Features:
The 1999 GMC Sonoma typically came in several trims, with the most common being:- Base/SL: Standard equipment included vinyl seats, AM/FM stereo, and basic instrumentation.
- SLE (Sport Luxury Edition): This trim offered more creature comforts like cloth seating, power windows and locks, upgraded audio systems, and sometimes cruise control.
- SLS (Sport Luxury Sport): Often included cosmetic enhancements like sportier wheels, body-colored trim, and sometimes sport suspension components for a more aggressive look and feel.
1999 GMC Sonoma Specifications
Vehicle Information
| Year | 1999 |
| Make | GMC |
| Model | Sonoma |
| Trim | - |
| Style | - |
| Type | Sport Utility Vehicle Cab; Extended |
| Category | Medium Truck |
Manufacturing Details
| Made In | United States |
| Manufacturing City | WENTZVILLE |
Dimensions
| Doors | 2-Door |
| Curb Weight | - |
| Gross Vehicle Weight Rating | - |
| Overall Height | - |
| Overall Length | - |
| Overall Width | - |
| Wheelbase Length | - |
| Standard Seating | - |
Engine & Performance
| Engine | 2.2L I4 |
| Engine Size | 2.2L |
| Engine Cylinders | 6 |
| Transmission | Automatic 4-Speed |
| Transmission Type | Automatic |
| Transmission Speeds | 4-Speed |
| Drivetrain | Four-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 1999 GMC Sonoma Have?
The 1999 GMC Sonoma, being part of the second generation of the model, generally exhibits decent reliability for its age. However, like any vehicle of this vintage, certain issues tend to surface with consistent frequency among owners. One of the most commonly reported problems revolves around the transmission. While not universal, automatic transmissions, particularly the 4L60-E, can develop issues such as slipping gears, delayed engagement, or complete failure, often related to worn clutches or torque converter problems. Regular fluid changes and proper maintenance are crucial to prolonging its life.
Engine concerns, while less prevalent than transmission issues, can include intake manifold gasket leaks, especially on V6 engines, leading to coolant loss and potential overheating. Ignition coil packs can also fail, causing misfires and rough running. The 4.3L V6 engine, though generally robust, can sometimes suffer from oil leaks from the rear main seal or valve cover gaskets.
Interior components often show wear and tear due to age. Plastic trim pieces can become brittle and crack, and seat upholstery may tear or fade. Window regulators can fail, making power windows inoperative. Rust is another significant concern, particularly in areas with harsh winters or high humidity. The rear wheel wells, rocker panels, and frame rails are common areas where corrosion can set in, potentially compromising structural integrity over time. Early inspection for rust is highly recommended.
Electrical issues, though not a widespread epidemic, can manifest as flickering dashboard lights, malfunctioning power door locks, or issues with the HVAC blower motor. The Anti-lock Braking System (ABS) module can also be a point of failure. Regarding recalls, while specific recalls for the 1999 model year can be found through NHTSA, they often pertain to specific components rather than systemic design flaws. Owners should always check for any outstanding recalls relevant to their VIN.
Long-term reliability is generally good if the truck has been maintained properly. The 4.3L V6 is known for its durability and longevity when cared for. However, the cumulative effect of age on suspension components like ball joints, tie rods, and shocks, as well as exhaust system wear, is to be expected and may require attention on higher-mileage examples.
Engine concerns, while less prevalent than transmission issues, can include intake manifold gasket leaks, especially on V6 engines, leading to coolant loss and potential overheating. Ignition coil packs can also fail, causing misfires and rough running. The 4.3L V6 engine, though generally robust, can sometimes suffer from oil leaks from the rear main seal or valve cover gaskets.
Interior components often show wear and tear due to age. Plastic trim pieces can become brittle and crack, and seat upholstery may tear or fade. Window regulators can fail, making power windows inoperative. Rust is another significant concern, particularly in areas with harsh winters or high humidity. The rear wheel wells, rocker panels, and frame rails are common areas where corrosion can set in, potentially compromising structural integrity over time. Early inspection for rust is highly recommended.
Electrical issues, though not a widespread epidemic, can manifest as flickering dashboard lights, malfunctioning power door locks, or issues with the HVAC blower motor. The Anti-lock Braking System (ABS) module can also be a point of failure. Regarding recalls, while specific recalls for the 1999 model year can be found through NHTSA, they often pertain to specific components rather than systemic design flaws. Owners should always check for any outstanding recalls relevant to their VIN.
Long-term reliability is generally good if the truck has been maintained properly. The 4.3L V6 is known for its durability and longevity when cared for. However, the cumulative effect of age on suspension components like ball joints, tie rods, and shocks, as well as exhaust system wear, is to be expected and may require attention on higher-mileage examples.
How long will the 1999 GMC Sonoma last?
Based on owner data and typical maintenance habits, a well-maintained 1999 GMC Sonoma can realistically achieve between 150,000 to 250,000 miles, and in some cases, even exceed 300,000 miles. The long-term durability is largely dependent on the care it has received. The 4.3L V6 engine, in particular, is known for its robust nature and ability to last for many years. However, weaknesses that tend to appear over time include the susceptibility to rust, especially in the frame and body panels, which can significantly impact its lifespan if not addressed. Automatic transmissions, as mentioned, can be a point of failure if not serviced regularly. Suspension components and exhaust systems are also wear items that will require replacement with age and mileage. Overall, with diligent maintenance, the Sonoma offers good longevity for a vehicle of its era.
What Technology & Safety Features are Included?
The 1999 GMC Sonoma, in line with its contemporaries, offered a functional, though not overly sophisticated, suite of technology and safety features.
Built-in Tech & Entertainment: Standard entertainment typically consisted of an AM/FM radio, often with a single-disc CD player as an optional upgrade or part of higher trim levels like the SLE. Cassette players were also common. Higher-end models might have featured upgraded speaker systems. Climate control was usually manual, with basic fan speed and temperature adjustments. Power windows and door locks were available as options or standard on higher trims.
Driver-Assistance Features: Driver-assistance features were minimal by today's standards. Antilock Braking System (ABS) was available, and sometimes standard on certain trims or drivetrain configurations, providing improved stopping control. Cruise control was a common option. Features like traction control or stability control were not offered.
Safety Features: Standard safety equipment included front airbags for the driver and passenger. Seat belts were of the three-point variety for outboard occupants. The Sonoma, like most vehicles from this era, did not feature the advanced driver-assistance systems we see today. Side airbags were not a common option.
Optional Features: Beyond the CD player and power accessories, optional features could include a rear sliding window, upgraded interior trim, fog lamps, and alloy wheels. For those needing more capability, a towing package often included a trailer hitch, wiring harness, and potentially a transmission cooler. Four-wheel drive was an optional drivetrain for many models.
Crash-Test Ratings: Crash-test data for the 1999 GMC Sonoma can be found through the National Highway Traffic Safety Administration (NHTSA). Frontal impact ratings generally showed the vehicle to perform adequately for its time, but specific ratings for side impacts or rollovers might be less robust compared to modern vehicles. For instance, NHTSA ratings often showed 4 out of 5 stars for the driver and passenger in frontal crashes. It's important to note that testing protocols and standards have evolved significantly since 1999, so direct comparisons to current vehicles are not entirely accurate.
Built-in Tech & Entertainment: Standard entertainment typically consisted of an AM/FM radio, often with a single-disc CD player as an optional upgrade or part of higher trim levels like the SLE. Cassette players were also common. Higher-end models might have featured upgraded speaker systems. Climate control was usually manual, with basic fan speed and temperature adjustments. Power windows and door locks were available as options or standard on higher trims.
Driver-Assistance Features: Driver-assistance features were minimal by today's standards. Antilock Braking System (ABS) was available, and sometimes standard on certain trims or drivetrain configurations, providing improved stopping control. Cruise control was a common option. Features like traction control or stability control were not offered.
Safety Features: Standard safety equipment included front airbags for the driver and passenger. Seat belts were of the three-point variety for outboard occupants. The Sonoma, like most vehicles from this era, did not feature the advanced driver-assistance systems we see today. Side airbags were not a common option.
Optional Features: Beyond the CD player and power accessories, optional features could include a rear sliding window, upgraded interior trim, fog lamps, and alloy wheels. For those needing more capability, a towing package often included a trailer hitch, wiring harness, and potentially a transmission cooler. Four-wheel drive was an optional drivetrain for many models.
Crash-Test Ratings: Crash-test data for the 1999 GMC Sonoma can be found through the National Highway Traffic Safety Administration (NHTSA). Frontal impact ratings generally showed the vehicle to perform adequately for its time, but specific ratings for side impacts or rollovers might be less robust compared to modern vehicles. For instance, NHTSA ratings often showed 4 out of 5 stars for the driver and passenger in frontal crashes. It's important to note that testing protocols and standards have evolved significantly since 1999, so direct comparisons to current vehicles are not entirely accurate.
What Colors Options are Available?
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In the meantime, feel free to explore the other sections for more content.
In the meantime, feel free to explore the other sections for more content.
1999 GMC Sonoma Prices and Market Value
When new, the 1999 GMC Sonoma had an original MSRP that typically ranged from approximately $15,000 for a base model regular cab to upwards of $24,000 for a well-equipped extended cab or crew cab with the V6 engine and higher trim levels. As with most trucks, the Sonoma experienced a gradual depreciation curve. Currently, used market prices for a 1999 GMC Sonoma vary significantly based on condition, mileage, trim level, and drivetrain. You can often find examples in the $2,000 to $7,000 range, with exceptionally clean or low-mileage examples potentially commanding more. Factors heavily affecting resale value include the presence of rust (a major detractor), the condition of the engine and transmission, overall body condition, and whether it's a desirable configuration like a V6 with 4WD. Well-maintained Sonomas, especially those with the 4.3L V6, tend to hold their value better than their 4-cylinder counterparts.
1999 GMC Sonoma Cost of Ownership
The 1999 GMC Sonoma is generally considered economical to own. Insurance costs are typically modest, especially for younger drivers or those with clean records, due to its age and market segment. Fuel costs will be moderate; the 4-cylinder is more efficient, while the V6 will consume more, but still reasonable for a truck. Routine maintenance like oil changes and tire rotations are standard. Repair costs can be surprisingly affordable, as many parts are readily available and often interchangeable with other GM trucks of the era. However, significant repairs, such as transmission work or rust remediation, can increase overall costs. Long-term ownership leans towards economical, especially if you find a well-maintained example and perform preventative maintenance.
1999 GMC Sonoma Fuel Efficiency
Fuel Type
Gasoline
Fuel Capacity
-
City Mileage
-
Highway Mileage
-
1999 GMC Sonoma Safety Rating
NHTSA
1999 GMC Sonoma Insurance
Insurance for a 1999 GMC Sonoma is moderately priced, reflecting its status as a Sport Utility Vehicle Cab; Extended with strong safety ratings and
reasonable repair costs.
reasonable repair costs.
How Does the 1999 GMC Sonoma Compare to Other Sport Utility Vehicle Cab; Extended?
The 1999 GMC Sonoma competed in the compact pickup truck segment against formidable rivals such as the Ford Ranger, Toyota Tacoma, and Mazda B-Series.
Performance: The Sonoma's optional 4.3L V6 engine provided competitive power for its class, often outperforming base engines in rivals like the Tacoma. The Ford Ranger also offered strong V6 options that were comparable. The Toyota Tacoma, however, was often lauded for its refined powertrain and excellent off-road capability when equipped with 4WD.
Features: In terms of features, the Sonoma was a mixed bag. While higher trims offered comfortable amenities, it generally lagged behind the Toyota Tacoma, which was known for its more modern interior design and available features even in the late 90s. The Ford Ranger was also a strong competitor with a wide range of configurations and features.
Reliability: The Toyota Tacoma consistently earned top marks for reliability, often considered the benchmark in the compact truck segment for its durability and low long-term ownership costs. The Ford Ranger also boasts a strong reputation for reliability. The Sonoma's reliability is generally good, particularly with the 4.3L V6, but it doesn't quite reach the legendary status of the Tacoma. Common issues like transmission problems and rust are more prevalent in the Sonoma and Ranger compared to the Tacoma.
Price: New, all these trucks were similarly priced, with minor variations. In the used market, the 1999 GMC Sonoma generally offers a more affordable entry point compared to a similarly aged Toyota Tacoma, especially if you're looking for a V6 or 4WD. The Ford Ranger also tends to be competitively priced.
Recommendations:
Performance: The Sonoma's optional 4.3L V6 engine provided competitive power for its class, often outperforming base engines in rivals like the Tacoma. The Ford Ranger also offered strong V6 options that were comparable. The Toyota Tacoma, however, was often lauded for its refined powertrain and excellent off-road capability when equipped with 4WD.
Features: In terms of features, the Sonoma was a mixed bag. While higher trims offered comfortable amenities, it generally lagged behind the Toyota Tacoma, which was known for its more modern interior design and available features even in the late 90s. The Ford Ranger was also a strong competitor with a wide range of configurations and features.
Reliability: The Toyota Tacoma consistently earned top marks for reliability, often considered the benchmark in the compact truck segment for its durability and low long-term ownership costs. The Ford Ranger also boasts a strong reputation for reliability. The Sonoma's reliability is generally good, particularly with the 4.3L V6, but it doesn't quite reach the legendary status of the Tacoma. Common issues like transmission problems and rust are more prevalent in the Sonoma and Ranger compared to the Tacoma.
Price: New, all these trucks were similarly priced, with minor variations. In the used market, the 1999 GMC Sonoma generally offers a more affordable entry point compared to a similarly aged Toyota Tacoma, especially if you're looking for a V6 or 4WD. The Ford Ranger also tends to be competitively priced.
Recommendations:
- For ultimate reliability and resale value: The Toyota Tacoma is the top choice, though likely at a higher used price.
- For a balanced option: The Ford Ranger offers a similar blend of capability and reliability, often at a slightly lower price point than the Tacoma.
- Similar alternatives: The Mazda B-Series (often mechanically similar to the Ford Ranger) is another solid, budget-friendly option.
Final Verdict: Is the 1999 GMC Sonoma a Good Sport Utility Vehicle Cab; Extended?
The 1999 GMC Sonoma is an ideal vehicle for budget-conscious buyers seeking a compact pickup truck for light-duty tasks, commuting, or as a second vehicle. It's particularly well-suited for those who appreciate the utility of a truck but prefer a more manageable size than a full-size model. It's definitely worth buying if you prioritize affordability and can find a well-maintained example, especially one with the 4.3L V6 engine for better performance and towing. Buying used is the only option now, and focusing on trucks with minimal rust and documented maintenance history is crucial. Higher trim levels like the SLE can offer a more comfortable experience. Avoid models with known transmission issues or significant body corrosion if you want long-term value.
Jovan
Jovan specializes in interpreting vehicle records and making sense of VIN data. With over 10 years of experience in the automotive data industry, his work ensures that every report is clear, accurate, and useful for car buyers.