1999 Toyota 4runner Engine 2.7l 4-cylinder

The late '90s Toyota 4Runner: a rugged icon, a testament to Toyota's legendary reliability, and a favorite among off-road enthusiasts and weekend warriors alike. While the 3.4L V6 often steals the spotlight, let's not forget about the little engine that could: the 1999 4Runner's 2.7L 4-cylinder. It might not win any drag races, but its reputation for dependability and efficiency makes it a compelling choice for many.

Under the Hood: The 2.7L 3RZ-FE

The heart of our subject is the 3RZ-FE, a 2.7-liter inline-four cylinder engine. This isn't your average gutless four-banger. This engine boasts a robust cast iron block and an aluminum cylinder head, designed for longevity. Let's delve into some specifics:

While 150 horsepower might seem modest by today's standards, remember that the 4Runner of this era was a lighter vehicle than modern SUVs. Plus, the 177 lb-ft of torque, available at a reasonable 4000 rpm, provides adequate pulling power for everyday driving and some moderate off-road adventures.

2WD vs. 4WD: A Tale of Two Transmissions

The 2.7L 4Runner was available in both 2-wheel drive (2WD) and 4-wheel drive (4WD) configurations. The transmission options included a 5-speed manual and a 4-speed automatic. The 4WD models obviously benefit from added traction, but the 2WD versions offered slightly better fuel economy and a lower price point.

The 4WD system is a part-time system, meaning it's not designed to be used on dry pavement. Engaging 4-High provides increased traction for loose surfaces like gravel or snow. For more challenging situations, 4-Low offers a significant torque multiplication, making it easier to navigate steep inclines or muddy trails. Remember to engage 4-Low only when the vehicle is stopped and in neutral.

Real-World Driving Impressions

Behind the wheel, the 2.7L 4Runner provides a surprisingly pleasant driving experience. The engine is smooth and relatively quiet, especially compared to some older, truck-based SUVs. Acceleration is adequate for merging onto the highway and maintaining cruising speeds. However, don't expect to win any races. Passing maneuvers require some planning, especially when the vehicle is loaded with passengers or cargo.

Off-road, the 2.7L engine's low-end torque is a definite asset. While it might not have the raw power of the V6, it's more than capable of tackling moderate trails. The 4Runner's solid axle suspension and capable 4WD system (in 4WD models) provide excellent articulation and traction. The key is to choose your lines carefully and avoid overly aggressive throttle inputs.

Pros and Cons: 2.7L 4Runner

• Pros:
• Exceptional reliability
• Good fuel economy (for its class)
• Simpler maintenance compared to the V6
• Lower purchase price (historically)
• Adequate power for everyday driving and moderate off-roading
• Cons:
• Slower acceleration compared to the V6
• Limited towing capacity
• Can feel underpowered when loaded down
• Engine noise can be noticeable at higher RPMs

The Bottom Line

The 1999 Toyota 4Runner with the 2.7L 4-cylinder engine is a reliable and capable SUV that offers a blend of practicality and off-road capability. While it might not be the fastest or most powerful option, its reputation for longevity and reasonable fuel economy make it a worthwhile choice for those who prioritize reliability and value.

The 2.7L is a great workhorse! It can be a great starting point to learn auto mechanics for beginning DIY'ers, too.

So, let's stir up some debate: Is the 2.7L 4Runner the *real* unsung hero of the 3rd generation, or is it just the "economy" option for those who couldn't afford the V6? Let the arguments begin!