1999 Ford Ranger 4.0 4x4 Auto Transmission: Guide & Info

Alright, guys, let's dive deep into the world of the 1999 Ford Ranger 4.0 4x4 with an automatic transmission. This truck is a classic, known for its reliability and ruggedness. Whether you're a seasoned mechanic, a weekend warrior, or just someone looking to keep their trusty Ranger running smoothly, this guide is for you. We'll cover everything from the specs and performance to common issues and maintenance tips.

Overview of the 1999 Ford Ranger 4.0 4x4

Let's kick things off with a broad overview. The 1999 Ford Ranger was part of the second generation, which ran from 1993 to 2012. The 4.0-liter V6 engine was a popular choice, offering a good balance of power and fuel economy. When paired with the 4x4 drivetrain and automatic transmission, you've got a versatile truck that's capable both on and off the road. These models are favored for their simplicity and ease of repair, making them a great option for DIY enthusiasts. The 4.0-liter engine, a staple in Ford's lineup, provides ample torque for hauling and tackling rough terrain. It's a robust engine, but like any older vehicle, it has its quirks and common issues. Regular maintenance is key to keeping it running strong for years to come. One of the reasons the 1999 Ford Ranger remains popular is its straightforward design. Unlike modern vehicles with complex electronics, the Ranger is relatively easy to diagnose and repair. This makes it a favorite among those who prefer to work on their own vehicles. Plus, parts are readily available and generally affordable. The 4x4 system adds another layer of versatility, allowing you to confidently navigate snow, mud, and other challenging conditions. Whether you're using it for work, recreation, or daily commuting, the 1999 Ford Ranger 4.0 4x4 is a solid choice. Its combination of reliability, capability, and ease of maintenance makes it a standout in its class. And with proper care, these trucks can last for many years and miles.

Engine and Performance Specs

Now, let's get into the nitty-gritty details of the 4.0-liter engine powering this beast. The 1999 Ford Ranger's 4.0L V6 engine, also known as the Cologne V6, delivers around 160 horsepower and 220 lb-ft of torque. These figures might not sound impressive by today's standards, but remember, this truck was built for reliability and utility. The engine is a single overhead cam (SOHC) design, which was a step up from the older pushrod engines. This SOHC configuration helps improve efficiency and provides a broader torque curve, making it great for towing and off-roading. The engine's performance is well-suited for the Ranger's size and weight, providing adequate power for most driving situations. One of the key features of this engine is its durability. It's known for its ability to withstand high mileage with proper maintenance. Regular oil changes, coolant flushes, and spark plug replacements are essential to keeping it running smoothly. The automatic transmission, typically a 5R55E, is also a robust unit. It's designed to handle the engine's torque and provide smooth shifts. However, like any automatic transmission, it requires regular servicing to prevent issues. This includes fluid changes and filter replacements. The 4x4 system is another critical component of the Ranger's performance. It allows you to switch between 2WD and 4WD modes, depending on the driving conditions. In 4WD mode, the truck gains significantly improved traction, making it capable of handling snow, mud, and other challenging terrains. The fuel economy of the 1999 Ford Ranger 4.0 4x4 is decent for its class, typically averaging around 15-17 mpg in the city and 19-22 mpg on the highway. Of course, these numbers can vary depending on driving habits and vehicle condition. Overall, the engine and performance specs of the 1999 Ford Ranger 4.0 4x4 strike a good balance between power, reliability, and fuel economy, making it a practical choice for a variety of uses.

The Automatic Transmission: 5R55E

Let's zoom in on the automatic transmission, specifically the 5R55E. This transmission is a 5-speed automatic known for its durability, but it's not without its quirks. Understanding its operation and maintenance is crucial for keeping your Ranger on the road. The 5R55E transmission is electronically controlled, meaning it uses sensors and solenoids to manage gear shifts. This allows for smoother and more precise shifting compared to older, purely mechanical transmissions. However, it also means that electrical issues can sometimes cause problems. One of the most important maintenance tasks for the 5R55E is regular fluid changes. Ford recommends changing the transmission fluid every 30,000 to 60,000 miles, depending on driving conditions. If you frequently tow or drive in harsh conditions, it's best to change the fluid more often. Using the correct type of transmission fluid is also crucial. Ford typically specifies Mercon V fluid for the 5R55E. Using the wrong fluid can cause damage to the transmission's internal components. Another common issue with the 5R55E is solenoid failure. The solenoids control the flow of fluid within the transmission, and if they fail, it can cause shifting problems. Symptoms of solenoid failure include rough shifting, delayed engagement, and the transmission getting stuck in a particular gear. Regular inspection of the transmission fluid can help identify potential problems early on. Look for signs of contamination, such as a dark color, metallic particles, or a burnt odor. These can indicate internal wear and tear, which could lead to more serious issues down the road. If you notice any unusual noises or shifting problems, it's best to have the transmission inspected by a qualified mechanic. Addressing problems early can often prevent more costly repairs later on. Overall, the 5R55E automatic transmission is a reliable unit when properly maintained. Regular fluid changes, using the correct fluid type, and addressing any issues promptly are essential for keeping it running smoothly and extending its lifespan.

Common Problems and How to Fix Them

No vehicle is perfect, and the 1999 Ford Ranger 4.0 4x4 is no exception. Let's talk about some common problems you might encounter and how to tackle them. One of the most frequent issues is with the engine. The 4.0L V6 can suffer from problems like vacuum leaks, which can cause rough idling and poor performance. Check all the vacuum lines for cracks or damage and replace them as needed. Another common issue is with the mass airflow (MAF) sensor. A dirty or faulty MAF sensor can cause the engine to run poorly, resulting in reduced power and fuel economy. Cleaning the MAF sensor with a specialized cleaner can often resolve this issue. Ignition system problems are also common. Worn spark plugs, faulty ignition coils, and damaged spark plug wires can all lead to misfires and poor engine performance. Replacing these components can restore the engine's performance. The automatic transmission can also experience problems, as we discussed earlier. Shifting issues, such as rough shifting or delayed engagement, are often caused by low or contaminated transmission fluid. Performing a transmission fluid change and filter replacement can often resolve these problems. The 4x4 system can also have its share of issues. The transfer case, which controls the engagement of the 4x4 system, can sometimes fail. Symptoms of a failing transfer case include unusual noises, difficulty shifting into 4WD, and the 4x4 system not engaging at all. Repairing or replacing the transfer case can be a significant job, so it's best to have it inspected by a qualified mechanic. The front suspension components, such as ball joints and tie rod ends, can also wear out over time. Symptoms of worn suspension components include loose steering, excessive tire wear, and clunking noises when driving over bumps. Replacing these components can improve the vehicle's handling and safety. Regular maintenance and timely repairs are essential for keeping your 1999 Ford Ranger 4.0 4x4 running smoothly and reliably. Addressing problems early can often prevent more costly repairs down the road.

Maintenance Tips for Longevity

To keep your 1999 Ford Ranger 4.0 4x4 running like a champ for years to come, let's talk maintenance. Regular maintenance is the key to preventing major problems and extending the life of your truck. First and foremost, stick to the recommended maintenance schedule outlined in your owner's manual. This includes regular oil changes, filter replacements, and fluid checks. Changing the oil and filter every 3,000 to 5,000 miles is crucial for keeping the engine running smoothly. Use the correct type of oil, as specified by Ford. Regularly inspect and maintain the cooling system. Check the coolant level and condition, and flush the system every two to three years. This helps prevent corrosion and overheating. The transmission also requires regular maintenance. Change the transmission fluid and filter every 30,000 to 60,000 miles, depending on driving conditions. Use the correct type of transmission fluid, as specified by Ford. Inspect the brakes regularly. Check the brake pads, rotors, and brake lines for wear and damage. Replace worn components as needed to ensure safe and reliable braking performance. Keep the tires properly inflated and rotated. This helps ensure even tire wear and prolongs the life of your tires. It also improves fuel economy and handling. Regularly inspect the suspension components, such as ball joints, tie rod ends, and shocks. Replace worn components as needed to maintain proper handling and stability. Check the belts and hoses for cracks or damage. Replace them as needed to prevent breakdowns. Inspect the exhaust system for leaks or damage. Repair any leaks to prevent exhaust fumes from entering the cabin. By following these maintenance tips, you can keep your 1999 Ford Ranger 4.0 4x4 running reliably for many years and miles.

Upgrades and Modifications

Want to give your 1999 Ford Ranger 4.0 4x4 a little extra flair or boost its performance? There are tons of upgrades and modifications you can do. Let's explore some popular options. For improved off-road performance, consider a suspension lift kit. This will give your Ranger more ground clearance and allow you to install larger tires. There are many different lift kits available, ranging from mild to extreme, so choose one that suits your needs and budget. Upgrading the tires is another great way to improve off-road performance. Choose tires with an aggressive tread pattern for better traction in mud, snow, and rocks. A cold air intake can improve engine performance by increasing the amount of air flowing into the engine. This can result in a slight increase in horsepower and torque, as well as improved throttle response. An aftermarket exhaust system can also improve engine performance and give your Ranger a more aggressive sound. Look for a cat-back exhaust system that is designed specifically for your truck. Upgrading the headlights can improve visibility at night. Consider installing LED headlights or HID headlights for brighter and more focused light output. Adding a brush guard or bull bar can protect the front of your Ranger from damage when off-roading. It can also give your truck a more rugged look. Installing fender flares can protect your truck's body from mud and debris. They can also give your Ranger a wider and more aggressive stance. Adding a tonneau cover can protect the contents of your truck bed from the elements. It can also improve fuel economy by reducing wind resistance. Upgrading the sound system can make your Ranger more enjoyable to drive. Consider installing a new head unit, speakers, and amplifier for improved sound quality. When making modifications to your 1999 Ford Ranger 4.0 4x4, be sure to choose high-quality parts and have them installed by a qualified mechanic. This will ensure that the modifications are done correctly and that they don't negatively affect your truck's reliability or performance. With the right upgrades and modifications, you can transform your Ranger into a capable off-road machine or a stylish daily driver.

Conclusion

The 1999 Ford Ranger 4.0 4x4 with an automatic transmission is a true workhorse. It's reliable, capable, and relatively easy to maintain. While it may have its quirks and common issues, with proper care and maintenance, it can provide years of dependable service. Whether you're using it for work, recreation, or daily commuting, this truck is a solid choice. By understanding its specs, performance characteristics, common problems, and maintenance needs, you can keep your Ranger running strong and enjoy its many benefits for years to come. So get out there, hit the road (or the trail), and enjoy the ride! Remember to stay proactive with maintenance, address issues promptly, and don't be afraid to tackle some DIY repairs. With a little effort, your 1999 Ford Ranger 4.0 4x4 will continue to be a trusty companion for all your adventures.