1999 GMC Sonoma SLS Sport 2 door Truck (Extended Cab)

Learn about the GMC Sonoma mid-size pickup truck. See the engine specifications, gas mileage, price, and MSRP. Research GMC SLS Sport warranty features and GM Financial lending options.

Looking for a GMC Sonoma?

Find your perfect ride. Choose from thousands of vehicles. Your Sonoma SLS Sport may be waiting for you.

Home » Vehicles » 1999 GMC Sonoma SLS Sport 2 Door Extended Cab 4WD SB 4.3L 6-Cylinder naturally aspired 5M

The products and offers that appear on the website are from respective partners, companies, and third-party advertisers from which we receive compensation. This compensation may impact how and where products appear on this site including the order in which they appear. This site does not include all financial products or companies or all available product offers. Learn more about our partners and how we make money

About the 1999 GMC Sonoma truck (extended cab)

The 1999 GMC Sonoma is produced under the GMC auto brand name. It is classified as a mid-size pickup truck and makes use of a truck (extended cab) body. This 2 door truck (extended cab) has four wheel drive with a 5-speed manual transmission. The GMC Sonoma is mainly domestic from United States. The GMC vehicle line is a subsidiary automobile company held by General Motors (General Motors Company).

Thinking about changing vehicles?

Looking for a new car? Check out GMC Sonoma truck (extended cab) listings. Browse extensive inventories to find the vehicle that is right for you!

1999 GMC Sonoma SLS Sport 2 Door Extended Cab 4WD SB 4.3L 6-Cylinder naturally aspired 5M 1

Introduction to the 1999 GMC Sonoma SLS Sport

The GMC Sonoma can be found in various trim levels and spec packages such as the 1999 GMC Sonoma SLS Sport 2 Door Extended Cab 4WD SB (4.3L 6-Cylinder naturally aspired 5M). This variation of the Sonoma truck (extended cab) features the SLS Sport 2 door Extended Cab 4WD SB with a 4.3L 6-cylinder naturally aspired 5M on the GMC Sonoma platform. The Sonoma SLS Sport trim might add automobile upgrade plans based on the origin of the automobile and the production generation.

GMC Sonoma SLS Sport Pricing and MSRP

Interested in having a 1999 GMC Sonoma SLS Sport? The recommended MSRP is noted at $ and used vehicle Kelly Blue Book amounts are generally found at lower price points. Used vehicle appraisals are calculated using the year, make, model, and demand. GMC Sonoma values can increase beyond these price ranges as a result of contributing factors like increased consumer demand, reduced supply, and industry scarcity. In 2021, car, SUV, and truck sale prices and comparable motor vehicle equity increased due to global semiconductor chip manufacturing shortfalls and supply chain limits. This generated pressure on the car marketplace with older used valuations eclipsing the value highs historically solely seen by new car models.


Trim & Style: SLS Sport 2 door Extended Cab 4WD SB with a 4.3L 6-cylinder naturally aspired 5M

Made In: United States

Sonoma SLS Sport Performance and Engine

A motor vehicle’s power, torque, and performance are important, and they matter more in certain scenarios than others. For example, if you are hauling a load or recreational trailer with a truck. The efficiency, specifications and capabilities of your engine pulling bundle matters a lot. Your quarter mile time, brake horsepower, and engine can lead to more bragging rights if you are taking your sports car out for a track day. On the other hand, if you are considering a smaller economical car to drive to work as a daily driver, you might not even care what is under the hood as long as it is reliable and the engine runs well.

GMC Vehicle Additional Details

The 1999 GMC Sonoma might feature numerous various performance bundles and engine options. This particular GMC motor vehicle features the 4.3 gas engine with a four wheel drive drivetrain.

Engine:Horsepower: 180
Doors: 2 doorTransmission: 5-speed manual
Drive Type: four wheel driveFuel: regular unleaded
MSRP: $Manufactured: United States
Data comes from dealer network APIs but is not endorsed or certified by any dealer.
1999 GMC Sonoma SLS Sport 2 Door Extended Cab 4WD SB 4.3L 6-Cylinder naturally aspired 5M 2

Fuel Economy and Gas Mileage (MPG)

Being aware of gas mileage and fuel usage are vital elements when it pertains to buying a GMC Sonoma. The total expense of the auto includes much more than the dealer price and includes the fuel cost. This is generally the next most expensive aspect when it comes to automobile ownership. The 3rd most pricey element is sticking to the advised manufacturer’s service schedule and conducting preventive maintenance.

The U.S. Environmental Protection Agency or EPA gives approximations into gas mileage (MPG) and the number of miles an auto can efficiently drive per a gallon of fuel consumed on city streets and on the highway. MPG depends on GMC Sonoma engine type, efficiency, operation elevation, and other things like aftermarket modifications, however it supplies a good standard for fuel consumption.

For the 1999 GMC Sonoma, the EPA quotes drivers will get an average of 15/20 MPG for operating the vehicle on city streets and while operating the vehicle on the highway. These valuations are different given that city driving involves navigating community streets, traffic lights, stop signs, and other things which make the GMC Sonoma to stop and start more often. On the highway, the GMC Sonoma’s engine and fuel efficiency are pushed to the limit achieving a better MPG ranking.

Comparing Auto MPGs

Check out how your existing automobile compares to the fuel efficiency of the 1999 GMC Sonoma. This can be a crucial factor in your car buying journey. Use the gas mileage comparison calculator shown below to see how many more miles you could drive and the price of gas. Can you save money by driving this GMC Sonoma or will it cost you more in gas to drive?

MPG: 15/20 MPG (city/Highway)

Compare Other vehicle MPGs

How to Finance Your Sonoma SLS Sport

Financing your 1999 GMC Sonoma truck (extended cab) can be a good method to get into the automobile of your dreams while paying it off over the course of numerous years by making month-to-month payments. You often normally start the automobile purchasing journey by locating the vehicle model you prefer to purchase. Next, you need to calculate the amount of money you will be required to have to finance by calculating the difference in between the sticker price of your brand-new GMC Sonoma and the valuations of your down payment and any trade-in credit from your old car.

This will give you the total amount of money you will be required to finance your 1999 GMC Sonoma. Get in touch with different lenders to see qualified financing deals. These offers will be based on your credit scores, consumer profile, and credit history. It is good to compare financing rates from a number of lending institutions (examining offers with 3-4 lenders is excellent). Doubling checking the contending offers will help you get the best funding offer possible on your GMC motor vehicle.

To complete your Sonoma finance, you need to do a few things consisting of having an approved credit rating, meeting loan provider requirements, and meeting car finance requirements. When trying to finance a newer vehicle, make an effort to have a credit rating of over 600 (non-prime group). Credit scores in the 500s (subprime bracket) might be acceptable for a little older used motor vehicle financing. This is very important because your score impacts your presented rate of interest during the new loan offering process.

Other loan provider requirements include making a specific level of income monthly and meeting residency requirements by living in a region the loan provider services for a specified period of time, like several months. In the nonprime credit classification of 601 to 660 scores, lending institutions might require borrowers to have a month-to-month income of $1,600 to $2,000. Subprime lending institutions in the 501 to 600 credit history generally have comparable requirements. Finally your car must satisfy general automobile finance requirements like being newer than 10 years old and having no more than 100,000 miles with favorable vehicle equity.

GMC Sonoma Refinancing

Refinance your GMC Sonoma SLS Sport truck (extended cab). Learn how you can save money by adjusting your current loan.

Find GMC Sonoma Insurance

Learn about insurance and see coverage options for your GMC Sonoma. Bundling your insurance can save you money.

Information About GM Financial

GM Financial is GMC’s in-house financing support services division. They offer various finance alternatives if you are considering purchasing a newer motor vehicle from a branded dealership. The offers and rewards can consist of finance deals like 0% APR for 60 months and 6.9% stand alone APR for 84 months (based on the amount of down payment). GM Financial can even offer lease deals and benefits like 10,500 yearly miles for 39 months with a set dollar amount due at finalization.

Finding Funding Your Sonoma SLS Sport

It is very important to understand how much you can afford to spend on your new 1999 GMC Sonoma. When tracking your individual finances, you may want to track your financing deals from various lenders. This step may be important not only for automobile budgeting but also for your personal finances. Checking your numbers with a financing calculator is one of the most convenient methods to rapidly see your estimated automobile payment.

How Much is the Monthly Payment to Buy a GMC Sonoma SLS Sport?

Ever wonder how much it would cost to get a car loan on a 1999 GMC Sonoma? Here is some information you can use to start your research! The most accurate answer to your car payment estimate question depends on a few things. The month-to-month vehicle payment on a GMC Sonoma SLS Sport is calculated by your deposit, vehicle loan interest rate, loan term, credit score, trade in-value, and various factors. Details like the sales tax on the Sonoma SLS Sport also have to be looked at. Now, we are ready to find the estimated payment. Considering that the manufacturer’s suggested retail price or MSRP is $, an average motor vehicle payment for a brand-new Sonoma could possibly be close to $-.

This can be approximated by using the MSRP minus a 10% down payment with a vehicle loan interest rate of 5% over a 48 month term. Keep in mind it does not take into account mandatory information like sales tax. Simply use this information for research purposes only. Remember this is what it may cost if you purchased the 1999 GMC Sonoma “new” based on the MSRP. With older cars, there is a considerable chance the monthly car payment will be noticeably different. You can check additional quotes with different numbers and percentages by using a auto loan calculator.

Estimated Monthly Payment


Involved Payment Factors

Down Payment: 10% (estimated payment)
Loan Interest Rate: 5% (average rate)
Car Loan Term: 72 months (varies by offer)

Note: This estimated payment does not include other factors and costs like sales tax which would normally be included in actual payment estimate.

1999 GMC Sonoma Refinancing

Refinancing your GMC Sonoma is also an alternative to look at after you have made a few of your preliminary regular monthly car or truck payments. The primary loan providers you originally financed through frequently have rewards and deals which expire or are front-weighted. Special deals like cash back rebates and 0% APR financing discounts may begin losing their effectiveness or worth after 6 to 12 car payments.

When refinancing is a good option to think about, thoroughly check out the terms and conditions of your financing contract and check the details to see if proceeding with refinancing may help you. Refinancing gives you the power to renegotiate your car financial debt with a brand-new loan provider successfully altering your current loan’s APR and term. If your financial circumstance has improved because you purchased your GMC Sonoma or if your initial term and rate are no longer advantageous to you, think about refinancing. You can commonly save dollars on your monthly auto payments by refinancing your vehicle loan.

GMC Sonoma Car Insurance Plans

Maintaining an auto insurance policy insurance coverage for your GMC Sonoma is necessary. Selecting the most ideal plan for you can help cover damages associated with motor vehicle accidents, auto theft, and additional damage to your car or truck. Not only can the insurance coverage help you fix the damage from an auto collision or hitting an object, but maintaining valid insurance is usually a legal necessity to drive a car on the roads in lots of states and counties in the US. The most effective automobile insurance plans and associated coverage are often comprehensive collision coverage which helps you repair accident-related damage to your GMC truck (extended cab) and also cover non accident-related damage from lots of things like inclement weather conditions, storms, fire, vandalism, and wild animal impacts on top of automobile collisions. Insurance can even help you pay for repairs to the 4.3L engine in your truck (extended cab) along with other mechanical parts and components. The amount you pay for the coverage can vary and is frequently based upon the year of manufacture of your motor vehicle. If you drive the 1999 SLS Sport, this will be factored into your regular monthly insurance payments. Discover more about insurance coverage and safeguard your GMC Sonoma SLS Sport 2 door Extended Cab 4WD SB with a 4.3L 6-cylinder naturally aspired 5M.

1999 GMC Sonoma SLS Sport 2 Door Extended Cab 4WD SB 4.3L 6-Cylinder naturally aspired 5M 3

Find Out Where to Buy a GMC Sonoma SLS Sport

Searching for the ideal car can be difficult. When it comes time to buy a car or truck, there are a lot of things to factor in. For example, you should look for the best make and model that matches your goals along with maintaining an auto monthly payment that aligns with your financial budget. There are a great deal of options in the market for looking at new and used car inventory, so it might be hard to recognize where to start your auto buying journey. Carvana is among the very best places to begin buying a car or truck. Their big inventory, financing choices, and trade-in policies can help you easily replace the automobile you have now for a different one you want to drive. Learn how to buy a motor vehicle through Carvana.

Shop for a GMC Sonoma

Sonoma SLS Sport Warranty

Warranty and Maintenance Details

We commonly think about branded factory warranties when it comes to getting a premier maintenance plan for your new car or truck. These factory warranties incorporate standard protections like a restricted 3 year or 36,000 mile bumper-to-bumper guarantee and a 5 year or 60,000 mile powertrain service warranty. These annual durations begin with the original purchase date by the first car’s owner.

Extra manufacturer auto warranties are usually readily available based on the vehicle’s engine type. New vehicles with diesel engines can come with a factory 5 year duration or 100,000 mile powertrain guarantee. Hybrid automobiles and electric vehicles (EVs) often have distinct warranty plans like a 8 year or 100,000 mile service warranty.

There are also extended automobile and vehicle service plans (VSPs), Certified pre-owned (CPO) coverage, and additional service warranty coverage alternatives offered outside of the maker’s original factory programs. VSPs offer routine maintenance service programs with additional coverage for components and parts in the event that your car experiences a large mechanical failure or breakdown. These are excellent choices to look into when buying a used automobile.

CPO guarantees frequently add protection for extra years limited by either time or mileage like 2 years or 80,000 miles on the automobile. Cars, trucks, and SUVs that are sold with CPO status receive a thorough pre-owned examination by qualified professionals which adds additional warranty years. CPO cars typically cost more than comparable used vehicles , however, they can be worth it for having the security that the car or truck you are purchasing is mechanically ok.

Other coverage choices include pre-paid car maintenance plans from automobile dealerships. These plans help to maintain the components, services, and labor that belong to the suggested producer’s repair and maintenance schedule. You can identify these service checks and associated mileages listed in the car owner’s guide.

Sonoma Types of Warranties

Factory Warranty: A factory warranty is what you may think of when it comes to the general concept of an “automobile warranty”. These types of guarantees most frequently come with new cars and are one of the most convenient and most budget friendly methods to safeguard your motor vehicle – warranty wise since the new vehicle might cost more than a used one leading to less affordability.

Drivetrain Warranty: A drivetrain service warranty covers the parts, components, and systems which move or “drive” the automobile forward. A drivetrain service warranty is also another term for a powertrain warranty and might cover similar elements depending on the manufacturer’s descriptions and warranty terms.

Roadside Warranty: A roadside service warranty can help you when you are stranded or broken down on the road. This warranty for the GMC Sonoma SLS Sport includes standard aid services such as towing, flat tire fixing or replacement, dead battery aid and jumpstarts, lockout support, fluid and fuel transport and delivery, and other related services. A roadside warranty resembles roadside assistance, but it is provided with the new automobile from the automaker and not an add-on product through insurance policies or a vehicle service contract or VSC.

Rust & Corrosion Warranty: A rust and corrosion warranty helps to protect the body, materials, and frame of the motor vehicle. Automakers often include this warranty with new vehicles to help fix damage triggered by caustic liquids, compounds, and chemicals.

GMC Sonoma Factory Warranty Coverage

Factory Warranty:Drive Train Warranty:
Roadside Warranty:Rust & Corrosion Warranty:
Data comes from dealer network APIs but is not endorsed or certified by any dealer.

GMC Sonoma SLS Sport Manufacturer Specs

In order to create interest in a bigger range of car drivers who are interested in the 1999 GMC Sonoma SLS Sport, a few different trim levels are provided. A large number of automobile manufacturers provide a variety of options for their cars. This includes General Motors (General Motors Company) who makes the Sonoma model. These alternatives can incorporate details like different paint shades, wheel dimensions, or packages that consist of benefits like a sunroof or navigation system. Offering these alternatives enables makers to appeal to different types of customers and enables them to sell more cars.

These choices allow consumers to select a vehicle which fulfills their requirements and can include different features that they might desire in their automobile. Some automobile suppliers may provide things like a variety of various engines, trim lines, and also performance packages to pick from, while others might offer different exterior color options or interior trim levels. The options that are available can vary between automakers, makes, and models, so do your research when you are shopping for a vehicle with specific features like heated seats or 3rd occupant seating.

By making the effort to look into the different alternatives that are available in the vehicle market, you, as the customer, can ensure that you are buying exactly what you want in your new car. This truck (extended cab) by Sonoma comes geared up from the car producer with several basic configurations and options. They consist of options like the and other common features.

1999 GMC Sonoma SLS Sport 2 Door Extended Cab 4WD SB 4.3L 6-Cylinder naturally aspired 5M 4

GMC Sonoma Common Questions

Looking for information about the GMC Sonoma SLS Sport? Here are some answers to frequently asked questions. It is essential to do your research on the vehicle and research the specific details. Check out the auto specs and understand how the monthly car payment on your car can impact your financial situation. These questions can help you start to understand the capabilities of the vehicle along with miles per gallon, weight, horsepower, and engine capabilities.

What is a GMC Sonoma SLS Sport?

The GMC Sonoma is a vehicle line produced by General Motors (General Motors Company). The SLS Sport is a specific package of the GMC Sonoma lineup. The vehicle is categorized as a mid-size pickup truck.

How much does a GMC Sonoma SLS Sport cost?

The GMC Sonoma SLS Sport costs around $.

What is the car payment to buy a GMC Sonoma SLS Sport?

The monthly car payment on a GMC Sonoma SLS Sport depends on your down payment, car loan interest rate, term, credit score, trade in-value, and other factors. Things like sales tax on the Sonoma SLS Sport also need to be considered. Since the MSRP is $, the average car payment for a new Sonoma could be around $-. This can be estimated by using the MSRP minus a 10% down payment with a auto loan interest rate of 5% over a term of 48 months. Keep in mind these factors will vary depending on your qualifying loan rates and lending offers. You can check additional estimates with varying numbers by using a car payment calculator.

Can I lease a GMC Sonoma SLS Sport?

You may be able to lease a GMC Sonoma SLS Sport through an auto loan lender or financial institution.

Can I refinance my GMC Sonoma SLS Sport?

You may be able to refinance your GMC Sonoma SLS Sport depending on your credit score and financial situation. To learn more about lenders who offer vehicle refinancing and car loans, check out the best auto refinance companies.

Where can I buy a GMC Sonoma SLS Sport?

Try searching car dealers like Carvana for a GMC Sonoma SLS Sport. They often have good deals on recent vehicles and may also have a similar GMC Sonoma in their inventory.

How far does the GMC Sonoma SLS Sport go on a single tank of gas?

The GMC Sonoma SLS Sport can usually travel around 285.0/380.0 miles miles on a full tank of gas. This range is dependent on driving conditions, vehicle maintenance, and other roadway factors.

Does the GMC Sonoma have good gas mileage?

GMC Sonoma gets an EPA estimated 15/20 MPG miles per gallon (MPG) on the city/highway roads. The combined MPG is 17 MPG. Understanding if this is a good gas mileage depends on what you are comparing the vehicle to. You can use our Gas Mileage Comparison calculator to see MPG estimates between vehicles with different MPG ratings along with destinations.

What kind of gas mileage does the GMC Sonoma get?

The GMC Sonoma gets 15/20 MPG (city/highway) MPG per the Environmental Protection Agency or EPA. The combined MPG rating is 17.

What type of gas does a GMC Sonoma use?

The GMC Sonoma uses the regular unleaded fuel type.

How much gas does the GMC Sonoma gas tank hold?

The gas tank in the GMC Sonoma holds 19 gallons of gas.

What type of vehicle is the GMC Sonoma SLS Sport?

The GMC Sonoma with the SLS Sport package is a mid-size pickup truck.

What is the towing capacity of a GMC Sonoma?

The GMC Sonoma has a towing capacity of 5,500 pounds.

How much horsepower does a GMC Sonoma have?

The GMC Sonoma has a horsepower rating of 180HP.

What kind of engine does a GMC Sonoma SLS Sport have?

The GMC Sonoma SLS Sport comes with a 4.3L V6 4×4 5-speed manual engine.

What type of drivetrain does a GMC Sonoma SLS Sport have?

The GMC Sonoma SLS Sport features a four wheel drive drivetrain.

What kind of transmission does a GMC Sonoma come with?

The GMC Sonoma SLS Sport comes with a 5-speed manual transmission.

Where is the GMC Sonoma made?

The GMC Sonoma SLS Sport is made in the United States by General Motors (General Motors Company).

Is the GMC Sonoma domestic or imported?

The GMC Sonoma is a domestic vehicle.

What car company makes the GMC Sonoma SLS Sport?

The General Motors (General Motors Company) is the auto manufacturer which produces the GMC Sonoma SLS Sport.

How much does a GMC Sonoma weigh?

The GMC Sonoma SLS Sport has a gross vehicle weight of 4,650 pounds and a curb weight of 3,753 pounds. Learn more about how a vehicle is weighed.

What kind of warranty does the GMC Sonoma come with?

The GMC Sonoma SLS Sport can come with a few warranties from the manufacturer including a drivetrain warranty, a roadside warranty, a anti-rust warranty, and a maintenance program.

Related Vehicles

Ready To Start The Refinance Process?

Start by connecting with lenders**.