Most Common Car Issues

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Engine Number of Cylinders
8
Model
4-Runner

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MOST COMMON PROBLEMS

TOYOTA 4-Runner 2005

The 2005 Toyota 4Runner SR5 is a robust SUV equipped with a 4.7L V8 engine, delivering between 227 to 284 horsepower. Manufactured in Japan, this model features a 4WD drivetrain, ensuring excellent off-road capabilities. Its spacious five-door design and sequential fuel injection system make it an ideal choice for both urban and adventurous driving. The 4Runner is built on a sturdy frame, classifying it as a multipurpose passenger vehicle with a gross weight rating in the Class 2E category.

Spec:

Engine Brake (hp) From
227
Engine Brake (hp) To
284
Engine Configuration
V-Shaped
Engine Manufacturer
Toyota
Engine Model
2UZ-FE
Engine Number of Cylinders
8
Engine Stroke Cycles
4

Problems:

Oil leaks
The 2UZ-FE engine may develop oil leaks around the valve cover gaskets and oil pan gasket. These leaks can lead to reduced engine performance if not addressed.
Timing belt wear
The timing belt on the 2UZ-FE engine needs regular replacement (approximately every 90,000 to 100,000 miles). A worn timing belt can cause serious engine damage if it breaks.
Fuel injector issues
Clogged or malfunctioning fuel injectors can lead to poor engine performance, misfires, and reduced fuel efficiency.
Cooling system problems
Over time, the cooling system components such as the radiator, water pump, and hoses may wear out or fail, leading to engine overheating issues.
Spark plug wear
The spark plugs may become worn or fouled over time, causing misfires, rough idling, and decreased fuel efficiency. Regular replacement is necessary to maintain optimal engine performance.
Intake manifold gasket failure
The intake manifold gasket can fail, causing vacuum leaks, rough idling, and poor engine performance.
Exhaust manifold cracks
The 2UZ-FE engine is known for developing cracks in the exhaust manifold, which can lead to exhaust leaks and increased emissions.
Oxygen sensor failure
Faulty oxygen sensors can result in incorrect air-fuel mixture readings, leading to poor fuel economy and increased emissions.
Throttle body issues
The throttle body can become dirty or malfunction, causing poor engine performance, stalling, and hesitation.
Mass air flow (maf) sensor problems
A faulty MAF sensor can cause incorrect air-fuel mixture readings, leading to poor engine performance and reduced fuel economy.
TOYOTA 4-Runner 2003

The 2003 Toyota 4-Runner Limited is a robust SUV featuring a 4.7L V8 engine with a displacement of 4663cc, delivering between 227 and 284 hp. It boasts a 4WD drivetrain and uses Sequential Fuel Injection (SFI) for optimal fuel delivery. Manufactured by Toyota Motor North America, Inc., this versatile vehicle offers a spacious 5-door design and is built in Hamura, Japan by Hino Motors LTD.

Spec:

Engine Brake (hp) From
227
Engine Brake (hp) To
284
Engine Configuration
V-Shaped
Engine Manufacturer
Toyota
Engine Model
2UZ-FE
Engine Number of Cylinders
8
Engine Stroke Cycles
4

Problems:

Oil sludge buildup
The 2UZ-FE engine is known for oil sludge buildup if the oil is not changed regularly. This can lead to poor lubrication and potential engine damage.
Timing belt failure
The timing belt in this engine needs to be replaced at recommended intervals. Failure to do so can result in the belt breaking, which can cause severe engine damage.
Head gasket issues
There have been reports of head gasket failures in the 2UZ-FE engine, which can lead to coolant leaks and overheating.
Exhaust manifold cracks
This engine may experience cracking in the exhaust manifold, which can lead to exhaust leaks and reduced performance.
Ignition coil failure
The ignition coils in the 2UZ-FE engine can be prone to failure, leading to misfires and rough engine operation.
Fuel injector problems
Fuel injectors can become clogged or fail, causing poor fuel delivery and engine performance issues.
Mass air flow sensor issues
The mass air flow sensor can become dirty or fail, resulting in incorrect air-fuel mixture and reduced engine performance.
Throttle body problems
The throttle body can become dirty or malfunction, leading to poor throttle response and engine stalling.
Cooling system leaks
Radiator and hose leaks are common, which can result in engine overheating if not addressed promptly.
TOYOTA 4-Runner 2005

The 2005 Toyota 4-Runner Limited is a robust SUV with a 4.7L V8 engine (2UZ-FE) delivering between 227 to 284 hp. It's equipped with 4WD, sequential fuel injection, and a direct tire pressure monitoring system. Built in Tahara, Japan, this versatile MPV is known for its durability and off-road capability.

Spec:

Engine Brake (hp) From
227
Engine Brake (hp) To
284
Engine Configuration
V-Shaped
Engine Manufacturer
Toyota
Engine Model
2UZ-FE
Engine Number of Cylinders
8
Engine Stroke Cycles
4

Problems:

Oil leaks
The 2UZ-FE engine may develop oil leaks around the valve cover gaskets and oil pan gasket. These leaks can lead to reduced engine performance if not addressed.
Timing belt wear
The timing belt on the 2UZ-FE engine needs regular replacement (approximately every 90,000 to 100,000 miles). A worn timing belt can cause serious engine damage if it breaks.
Fuel injector issues
Clogged or malfunctioning fuel injectors can lead to poor engine performance, misfires, and reduced fuel efficiency.
Cooling system problems
Over time, the cooling system components such as the radiator, water pump, and hoses may wear out or fail, leading to engine overheating issues.
Spark plug wear
The spark plugs may become worn or fouled over time, causing misfires, rough idling, and decreased fuel efficiency. Regular replacement is necessary to maintain optimal engine performance.
Intake manifold gasket failure
The intake manifold gasket can fail, causing vacuum leaks, rough idling, and poor engine performance.
Exhaust manifold cracks
The 2UZ-FE engine is known for developing cracks in the exhaust manifold, which can lead to exhaust leaks and increased emissions.
Oxygen sensor failure
Faulty oxygen sensors can result in incorrect air-fuel mixture readings, leading to poor fuel economy and increased emissions.
Throttle body issues
The throttle body can become dirty or malfunction, causing poor engine performance, stalling, and hesitation.
Mass air flow (maf) sensor problems
A faulty MAF sensor can cause incorrect air-fuel mixture readings, leading to poor engine performance and reduced fuel economy.
TOYOTA 4-Runner 2008

The 2008 Toyota 4Runner SR5 is a robust SUV with a 4.7L V8 engine, delivering between 260 to 284 hp. It features 4WD, a dual overhead cam design, and sequential fuel injection. Manufactured in Tokyo, Japan, this model boasts a class 2E gross vehicle weight rating and direct TPMS. Ideal for both on-road and off-road adventures.

Spec:

Engine Brake (hp) From
260
Engine Brake (hp) To
284
Engine Configuration
V-Shaped
Engine Manufacturer
Toyota
Engine Model
2UZ-FE
Engine Number of Cylinders
8
Engine Stroke Cycles
4

Problems:

Oil leaks
The 2UZ-FE engine is known for developing oil leaks over time, particularly from the valve cover gaskets and oil pan gasket.
Timing belt wear
The 2UZ-FE engine uses a timing belt which needs to be replaced at regular intervals to prevent engine damage.
Valve cover gasket leaks
Common issue where the valve cover gaskets deteriorate and cause oil leaks.
Excessive oil consumption
Some owners report higher-than-normal oil consumption, which can be due to worn piston rings or valve seals.
Spark plug failure
Misfires and rough idling can occur due to worn-out spark plugs, which need regular replacement.
Cooling system issues
Radiator and water pump failures are not uncommon, which can lead to overheating.
Crankshaft position sensor failure
This can cause the engine to stall or fail to start.
Throttle body problems
Build-up in the throttle body can lead to poor throttle response and rough idling.
TOYOTA 4-Runner 2005

The 2005 Toyota 4-Runner SR5 is a robust Sport Utility Vehicle (SUV) with a 4.7L V8 engine, delivering between 227 and 284 horsepower. This 4WD model features a dual overhead cam design and sequential fuel injection for optimal performance. Manufactured in Tahara, Japan, it boasts a gross vehicle weight rating of 6,001 - 7,000 lbs, making it ideal for both on-road and off-road adventures. With a direct Tire Pressure Monitoring System (TPMS) and a spacious wagon body style, it offers both safety and comfort.

Spec:

Engine Brake (hp) From
227
Engine Brake (hp) To
284
Engine Configuration
V-Shaped
Engine Manufacturer
Toyota
Engine Model
2UZ-FE
Engine Number of Cylinders
8
Engine Stroke Cycles
4

Problems:

Oil leaks
The 2UZ-FE engine may develop oil leaks around the valve cover gaskets and oil pan gasket. These leaks can lead to reduced engine performance if not addressed.
Timing belt wear
The timing belt on the 2UZ-FE engine needs regular replacement (approximately every 90,000 to 100,000 miles). A worn timing belt can cause serious engine damage if it breaks.
Fuel injector issues
Clogged or malfunctioning fuel injectors can lead to poor engine performance, misfires, and reduced fuel efficiency.
Cooling system problems
Over time, the cooling system components such as the radiator, water pump, and hoses may wear out or fail, leading to engine overheating issues.
Spark plug wear
The spark plugs may become worn or fouled over time, causing misfires, rough idling, and decreased fuel efficiency. Regular replacement is necessary to maintain optimal engine performance.
Intake manifold gasket failure
The intake manifold gasket can fail, causing vacuum leaks, rough idling, and poor engine performance.
Exhaust manifold cracks
The 2UZ-FE engine is known for developing cracks in the exhaust manifold, which can lead to exhaust leaks and increased emissions.
Oxygen sensor failure
Faulty oxygen sensors can result in incorrect air-fuel mixture readings, leading to poor fuel economy and increased emissions.
Throttle body issues
The throttle body can become dirty or malfunction, causing poor engine performance, stalling, and hesitation.
Mass air flow (maf) sensor problems
A faulty MAF sensor can cause incorrect air-fuel mixture readings, leading to poor engine performance and reduced fuel economy.
TOYOTA 4-Runner 2008

The 2008 Toyota 4-Runner Limited is a robust SUV featuring a 4.7L V8 engine with 260-284 hp, utilizing a Sequential Fuel Injection system. Built in Tokyo, Japan, this 4WD vehicle comes with a dual overhead camshaft design and direct TPMS. Perfect for both rugged terrain and everyday use, it embodies Toyota's reputation for reliability and performance.

Spec:

Engine Brake (hp) From
260
Engine Brake (hp) To
284
Engine Configuration
V-Shaped
Engine Manufacturer
Toyota
Engine Model
2UZ-FE
Engine Number of Cylinders
8
Engine Stroke Cycles
4

Problems:

Oil leaks
The 2UZ-FE engine is known for developing oil leaks over time, particularly from the valve cover gaskets and oil pan gasket.
Timing belt wear
The 2UZ-FE engine uses a timing belt which needs to be replaced at regular intervals to prevent engine damage.
Valve cover gasket leaks
Common issue where the valve cover gaskets deteriorate and cause oil leaks.
Excessive oil consumption
Some owners report higher-than-normal oil consumption, which can be due to worn piston rings or valve seals.
Spark plug failure
Misfires and rough idling can occur due to worn-out spark plugs, which need regular replacement.
Cooling system issues
Radiator and water pump failures are not uncommon, which can lead to overheating.
Crankshaft position sensor failure
This can cause the engine to stall or fail to start.
Throttle body problems
Build-up in the throttle body can lead to poor throttle response and rough idling.
TOYOTA 4-Runner 2006

The 2006 Toyota 4Runner SR5 is a robust and versatile SUV powered by a 4.7-liter V8 engine, delivering between 227 to 284 hp. It features a 4WD drive type, ensuring excellent off-road capabilities. Manufactured in Japan, this model includes sequential fuel injection and a direct TPMS for enhanced safety. With a GVWR of 6005 lbs, it's designed for both utility and passenger comfort.

Spec:

Engine Brake (hp) From
227
Engine Brake (hp) To
284
Engine Configuration
V-Shaped
Engine Manufacturer
Toyota
Engine Model
2UZ-FE
Engine Number of Cylinders
8
Engine Stroke Cycles
4

Problems:

Oil leaks
The 2UZ-FE engine is known to develop oil leaks over time, particularly around the valve cover gaskets and oil pan gasket.
Timing belt wear
This engine uses a timing belt that needs regular replacement (usually every 90,000 miles) to prevent catastrophic engine damage.
Exhaust manifold cracks
The cast iron exhaust manifolds are prone to cracking, which can lead to exhaust leaks and reduced engine performance.
Ignition coil failure
The ignition coils on the 2UZ-FE engine can fail, leading to misfires and rough running conditions.
Cooling system issues
Over time, components like the radiator, water pump, and thermostat can fail, leading to overheating issues.
Throttle body problems
Carbon build-up in the throttle body can cause poor idling and throttle response problems.
Fuel injector issues
Fuel injectors can become clogged or fail, leading to poor engine performance and increased fuel consumption.
Oxygen sensor failure
The oxygen sensors can fail, causing the engine to run inefficiently and potentially trigger the check engine light.
TOYOTA 4-Runner 2003

The 2003 Toyota 4-Runner Limited is a robust Sport Utility Vehicle (SUV) with a 4.7L V8 engine, delivering between 227 to 284 horsepower. It features a 4WD drive type, making it versatile for various terrains. Manufactured in Japan by Hino Motors LTD, this model boasts a sequential fuel injection system and a dual overhead cam design. Perfect for those seeking reliability and performance in a multipurpose passenger vehicle.

Spec:

Engine Brake (hp) From
227
Engine Brake (hp) To
284
Engine Configuration
V-Shaped
Engine Manufacturer
Toyota
Engine Model
2UZ-FE
Engine Number of Cylinders
8
Engine Stroke Cycles
4

Problems:

Oil sludge buildup
The 2UZ-FE engine is known for oil sludge buildup if the oil is not changed regularly. This can lead to poor lubrication and potential engine damage.
Timing belt failure
The timing belt in this engine needs to be replaced at recommended intervals. Failure to do so can result in the belt breaking, which can cause severe engine damage.
Head gasket issues
There have been reports of head gasket failures in the 2UZ-FE engine, which can lead to coolant leaks and overheating.
Exhaust manifold cracks
This engine may experience cracking in the exhaust manifold, which can lead to exhaust leaks and reduced performance.
Ignition coil failure
The ignition coils in the 2UZ-FE engine can be prone to failure, leading to misfires and rough engine operation.
Fuel injector problems
Fuel injectors can become clogged or fail, causing poor fuel delivery and engine performance issues.
Mass air flow sensor issues
The mass air flow sensor can become dirty or fail, resulting in incorrect air-fuel mixture and reduced engine performance.
Throttle body problems
The throttle body can become dirty or malfunction, leading to poor throttle response and engine stalling.
Cooling system leaks
Radiator and hose leaks are common, which can result in engine overheating if not addressed promptly.
TOYOTA 4-Runner 2007

The 2007 Toyota 4Runner SR5 is a robust SUV featuring a 4.7L V8 engine with a displacement of 4663cc, delivering between 260 to 284 horsepower. Built in Tahara, Japan, this 4WD vehicle boasts a dual overhead cam (DOHC) valve train and sequential fuel injection. With a gross vehicle weight rating of up to 7,000 lbs, it’s designed for both power and versatility. The model also includes a direct tire pressure monitoring system for enhanced safety.

Spec:

Engine Brake (hp) From
260
Engine Brake (hp) To
284
Engine Configuration
V-Shaped
Engine Manufacturer
Toyota
Engine Model
2UZ-FE
Engine Number of Cylinders
8
Engine Stroke Cycles
4

Problems:

Oil leaks
The Toyota 2UZ-FE engine is known for developing oil leaks, particularly from the valve cover gaskets and the oil pan gasket.
Timing belt wear
This engine uses a timing belt which needs regular replacement. Neglecting this can lead to serious engine damage if the belt breaks.
Excessive oil consumption
Some users report that the 2UZ-FE engine consumes more oil than expected, which could be due to worn valve stem seals or piston rings.
Spark plug issues
The V-shaped configuration can make spark plug replacement more challenging, and misfires can occur if spark plugs are not maintained properly.
Cooling system problems
Radiators and water pumps can fail, leading to overheating issues. Regular coolant checks and replacements are crucial.
Carbon build-up
Over time, carbon deposits can accumulate on the intake valves and combustion chambers, affecting performance and fuel efficiency.
Exhaust manifold cracks
The exhaust manifolds on these engines can develop cracks, leading to exhaust leaks and reduced performance.
TOYOTA 4-Runner 2007

The 2007 Toyota 4Runner SR5 is a versatile SUV with a robust 4.7L V8 engine producing between 260 to 284 hp. It features 4WD for off-road capabilities and a spacious 5-door design. Built in Japan at the Hino Motors Hamura Plant, this model offers dependable performance with its Dual Overhead Cam configuration and Sequential Fuel Injection system. Ideal for those seeking a reliable and powerful multi-purpose vehicle.

Spec:

Engine Brake (hp) From
260
Engine Brake (hp) To
284
Engine Configuration
V-Shaped
Engine Manufacturer
Toyota
Engine Model
2UZ-FE
Engine Number of Cylinders
8
Engine Stroke Cycles
4

Problems:

Oil leaks
The Toyota 2UZ-FE engine is known for developing oil leaks, particularly from the valve cover gaskets and the oil pan gasket.
Timing belt wear
This engine uses a timing belt which needs regular replacement. Neglecting this can lead to serious engine damage if the belt breaks.
Excessive oil consumption
Some users report that the 2UZ-FE engine consumes more oil than expected, which could be due to worn valve stem seals or piston rings.
Spark plug issues
The V-shaped configuration can make spark plug replacement more challenging, and misfires can occur if spark plugs are not maintained properly.
Cooling system problems
Radiators and water pumps can fail, leading to overheating issues. Regular coolant checks and replacements are crucial.
Carbon build-up
Over time, carbon deposits can accumulate on the intake valves and combustion chambers, affecting performance and fuel efficiency.
Exhaust manifold cracks
The exhaust manifolds on these engines can develop cracks, leading to exhaust leaks and reduced performance.
TOYOTA 4-Runner 2003

The 2003 Toyota 4-Runner Limited is a versatile SUV with a 4.7L V8 engine (2UZ-FE), delivering between 227 to 284 hp. It features a 4WD system, sequential fuel injection, and a dual overhead cam valve train design. Built in Tokyo, Japan, this multipurpose passenger vehicle offers robust performance and reliability.

Spec:

Engine Brake (hp) From
227
Engine Brake (hp) To
284
Engine Configuration
V-Shaped
Engine Manufacturer
Toyota
Engine Model
2UZ-FE
Engine Number of Cylinders
8
Engine Stroke Cycles
4

Problems:

Oil sludge buildup
The 2UZ-FE engine is known for oil sludge buildup if the oil is not changed regularly. This can lead to poor lubrication and potential engine damage.
Timing belt failure
The timing belt in this engine needs to be replaced at recommended intervals. Failure to do so can result in the belt breaking, which can cause severe engine damage.
Head gasket issues
There have been reports of head gasket failures in the 2UZ-FE engine, which can lead to coolant leaks and overheating.
Exhaust manifold cracks
This engine may experience cracking in the exhaust manifold, which can lead to exhaust leaks and reduced performance.
Ignition coil failure
The ignition coils in the 2UZ-FE engine can be prone to failure, leading to misfires and rough engine operation.
Fuel injector problems
Fuel injectors can become clogged or fail, causing poor fuel delivery and engine performance issues.
Mass air flow sensor issues
The mass air flow sensor can become dirty or fail, resulting in incorrect air-fuel mixture and reduced engine performance.
Throttle body problems
The throttle body can become dirty or malfunction, leading to poor throttle response and engine stalling.
Cooling system leaks
Radiator and hose leaks are common, which can result in engine overheating if not addressed promptly.
TOYOTA 4-Runner 2007

The 2007 Toyota 4-Runner Limited is a robust SUV powered by a 4.7L V8 engine (2UZ-FE) with a horsepower range of 260 to 284. This 4WD vehicle features a Sequential Fuel Injection system and a Dual Overhead Cam (DOHC) valve train design. Manufactured by Toyota Motor North America, Inc. in Hamura, Japan, it offers a blend of power and versatility ideal for both on-road and off-road adventures.

Spec:

Engine Brake (hp) From
260
Engine Brake (hp) To
284
Engine Configuration
V-Shaped
Engine Manufacturer
Toyota
Engine Model
2UZ-FE
Engine Number of Cylinders
8
Engine Stroke Cycles
4

Problems:

Oil leaks
The Toyota 2UZ-FE engine is known for developing oil leaks, particularly from the valve cover gaskets and the oil pan gasket.
Timing belt wear
This engine uses a timing belt which needs regular replacement. Neglecting this can lead to serious engine damage if the belt breaks.
Excessive oil consumption
Some users report that the 2UZ-FE engine consumes more oil than expected, which could be due to worn valve stem seals or piston rings.
Spark plug issues
The V-shaped configuration can make spark plug replacement more challenging, and misfires can occur if spark plugs are not maintained properly.
Cooling system problems
Radiators and water pumps can fail, leading to overheating issues. Regular coolant checks and replacements are crucial.
Carbon build-up
Over time, carbon deposits can accumulate on the intake valves and combustion chambers, affecting performance and fuel efficiency.
Exhaust manifold cracks
The exhaust manifolds on these engines can develop cracks, leading to exhaust leaks and reduced performance.
TOYOTA 4-Runner 2004

The 2004 Toyota 4-Runner Limited is a robust SUV featuring a 4.7-liter V8 engine, delivering between 227 to 284 horsepower. Equipped with a 4WD system and sequential fuel injection, it ensures both power and efficiency. Manufactured in Tahara, Japan, this model is designed for versatile and reliable performance.

Spec:

Engine Brake (hp) From
227
Engine Brake (hp) To
284
Engine Configuration
V-Shaped
Engine Manufacturer
Toyota
Engine Model
2UZ-FE
Engine Number of Cylinders
8
Engine Stroke Cycles
4

Problems:

Oil leaks
The 2UZ-FE engine is known for oil leaks, especially from the valve cover gaskets and the oil pan.
Timing belt wear
This engine uses a timing belt which requires regular replacement. If neglected, it can lead to severe engine damage.
Exhaust manifold cracks
The V-shaped configuration can lead to heat stress on the exhaust manifolds, causing them to crack.
Fuel injector issues
The fuel injectors can become clogged or fail, leading to poor engine performance and reduced fuel efficiency.
Cooling system problems
Issues with the radiator, water pump, or thermostat can lead to overheating, which is harmful to the engine.
Spark plug wear
The 8-cylinder configuration means more spark plugs to maintain, and worn spark plugs can cause misfires and poor performance.
Mass air flow sensor failure
This sensor can become dirty or fail, leading to incorrect air-to-fuel ratio and reduced engine efficiency.
Throttle body problems
The throttle body can become dirty or faulty, affecting acceleration and engine response.
Ignition coil failures
The 2UZ-FE engine may experience ignition coil failures, leading to misfires and reduced engine power.
TOYOTA 4-Runner 2005

The 2005 Toyota 4-Runner Limited is a robust SUV featuring a 4.7L V8 engine with a displacement of 4663cc and 227-284 horsepower. Equipped with a 4WD system, this vehicle is built for versatility and performance. Manufactured in Tahara, Japan, it offers a dual overhead cam (DOHC) design and sequential fuel injection for efficient power delivery. With a gross vehicle weight rating of 6,001 - 7,000 lbs, it’s well-suited for both on-road and off-road adventures.

Spec:

Engine Brake (hp) From
227
Engine Brake (hp) To
284
Engine Configuration
V-Shaped
Engine Manufacturer
Toyota
Engine Model
2UZ-FE
Engine Number of Cylinders
8
Engine Stroke Cycles
4

Problems:

Oil leaks
The 2UZ-FE engine may develop oil leaks around the valve cover gaskets and oil pan gasket. These leaks can lead to reduced engine performance if not addressed.
Timing belt wear
The timing belt on the 2UZ-FE engine needs regular replacement (approximately every 90,000 to 100,000 miles). A worn timing belt can cause serious engine damage if it breaks.
Fuel injector issues
Clogged or malfunctioning fuel injectors can lead to poor engine performance, misfires, and reduced fuel efficiency.
Cooling system problems
Over time, the cooling system components such as the radiator, water pump, and hoses may wear out or fail, leading to engine overheating issues.
Spark plug wear
The spark plugs may become worn or fouled over time, causing misfires, rough idling, and decreased fuel efficiency. Regular replacement is necessary to maintain optimal engine performance.
Intake manifold gasket failure
The intake manifold gasket can fail, causing vacuum leaks, rough idling, and poor engine performance.
Exhaust manifold cracks
The 2UZ-FE engine is known for developing cracks in the exhaust manifold, which can lead to exhaust leaks and increased emissions.
Oxygen sensor failure
Faulty oxygen sensors can result in incorrect air-fuel mixture readings, leading to poor fuel economy and increased emissions.
Throttle body issues
The throttle body can become dirty or malfunction, causing poor engine performance, stalling, and hesitation.
Mass air flow (maf) sensor problems
A faulty MAF sensor can cause incorrect air-fuel mixture readings, leading to poor engine performance and reduced fuel economy.
TOYOTA 4-Runner 2006

The 2006 Toyota 4Runner Limited is a versatile SUV equipped with a robust 4.7L V8 engine, producing between 227 to 284 hp. Built in Japan, this 4WD vehicle features a Wagon body and a GVWR of 6005 lbs. It boasts a Sequential Fuel Injection system and a Dual Overhead Cam valve train design, ensuring both power and efficiency. With a seating capacity of five doors and advanced safety features like a Direct TPMS, the 4Runner is perfect for both city driving and off-road adventures.

Spec:

Engine Brake (hp) From
227
Engine Brake (hp) To
284
Engine Configuration
V-Shaped
Engine Manufacturer
Toyota
Engine Model
2UZ-FE
Engine Number of Cylinders
8
Engine Stroke Cycles
4

Problems:

Oil leaks
The 2UZ-FE engine is known to develop oil leaks over time, particularly around the valve cover gaskets and oil pan gasket.
Timing belt wear
This engine uses a timing belt that needs regular replacement (usually every 90,000 miles) to prevent catastrophic engine damage.
Exhaust manifold cracks
The cast iron exhaust manifolds are prone to cracking, which can lead to exhaust leaks and reduced engine performance.
Ignition coil failure
The ignition coils on the 2UZ-FE engine can fail, leading to misfires and rough running conditions.
Cooling system issues
Over time, components like the radiator, water pump, and thermostat can fail, leading to overheating issues.
Throttle body problems
Carbon build-up in the throttle body can cause poor idling and throttle response problems.
Fuel injector issues
Fuel injectors can become clogged or fail, leading to poor engine performance and increased fuel consumption.
Oxygen sensor failure
The oxygen sensors can fail, causing the engine to run inefficiently and potentially trigger the check engine light.
TOYOTA 4-Runner 2004

The 2004 Toyota 4-Runner Limited is a versatile SUV powered by a 4.7L V8 engine, featuring a robust 4WD system. Manufactured in Tokyo, Japan by Hino Motors, this model boasts a DOHC valve train and sequential fuel injection. With a displacement of 4663 CC and horsepower ranging from 227 to 284, it's built for both power and performance. This 5-door vehicle is perfect for multi-purpose use and offers a reliable, comfortable ride.

Spec:

Engine Brake (hp) From
227
Engine Brake (hp) To
284
Engine Configuration
V-Shaped
Engine Manufacturer
Toyota
Engine Model
2UZ-FE
Engine Number of Cylinders
8
Engine Stroke Cycles
4

Problems:

Oil leaks
The 2UZ-FE engine is known for oil leaks, especially from the valve cover gaskets and the oil pan.
Timing belt wear
This engine uses a timing belt which requires regular replacement. If neglected, it can lead to severe engine damage.
Exhaust manifold cracks
The V-shaped configuration can lead to heat stress on the exhaust manifolds, causing them to crack.
Fuel injector issues
The fuel injectors can become clogged or fail, leading to poor engine performance and reduced fuel efficiency.
Cooling system problems
Issues with the radiator, water pump, or thermostat can lead to overheating, which is harmful to the engine.
Spark plug wear
The 8-cylinder configuration means more spark plugs to maintain, and worn spark plugs can cause misfires and poor performance.
Mass air flow sensor failure
This sensor can become dirty or fail, leading to incorrect air-to-fuel ratio and reduced engine efficiency.
Throttle body problems
The throttle body can become dirty or faulty, affecting acceleration and engine response.
Ignition coil failures
The 2UZ-FE engine may experience ignition coil failures, leading to misfires and reduced engine power.
TOYOTA 4-Runner 2006

The 2006 Toyota 4-Runner Limited is a robust SUV powered by a 4.7L V8 engine (2UZ-FE) delivering between 227 to 284 horsepower. Featuring a 4WD drivetrain, this vehicle is built for versatile performance. Manufactured in Tahara, Japan, it includes Sequential Fuel Injection and a Direct TPMS. With a Gross Vehicle Weight Rating of 6005 lbs, it's designed to handle a variety of terrains and driving conditions.

Spec:

Engine Brake (hp) From
227
Engine Brake (hp) To
284
Engine Configuration
V-Shaped
Engine Manufacturer
Toyota
Engine Model
2UZ-FE
Engine Number of Cylinders
8
Engine Stroke Cycles
4

Problems:

Oil leaks
The 2UZ-FE engine is known to develop oil leaks over time, particularly around the valve cover gaskets and oil pan gasket.
Timing belt wear
This engine uses a timing belt that needs regular replacement (usually every 90,000 miles) to prevent catastrophic engine damage.
Exhaust manifold cracks
The cast iron exhaust manifolds are prone to cracking, which can lead to exhaust leaks and reduced engine performance.
Ignition coil failure
The ignition coils on the 2UZ-FE engine can fail, leading to misfires and rough running conditions.
Cooling system issues
Over time, components like the radiator, water pump, and thermostat can fail, leading to overheating issues.
Throttle body problems
Carbon build-up in the throttle body can cause poor idling and throttle response problems.
Fuel injector issues
Fuel injectors can become clogged or fail, leading to poor engine performance and increased fuel consumption.
Oxygen sensor failure
The oxygen sensors can fail, causing the engine to run inefficiently and potentially trigger the check engine light.
TOYOTA 4-Runner 2006

The 2006 Toyota 4Runner SR5 is a versatile SUV powered by a robust 4.7L V8 engine, producing between 227 to 284 horsepower. Featuring a 4WD drivetrain and Dual Overhead Cam design, this model ensures a smooth and powerful ride. Manufactured in Tahara, Japan, it boasts a Gross Vehicle Weight Rating of 6005 lbs. Equipped with Sequential Fuel Injection and a direct Tire Pressure Monitoring System, it promises both performance and safety.

Spec:

Engine Brake (hp) From
227
Engine Brake (hp) To
284
Engine Configuration
V-Shaped
Engine Manufacturer
Toyota
Engine Model
2UZ-FE
Engine Number of Cylinders
8
Engine Stroke Cycles
4

Problems:

Oil leaks
The 2UZ-FE engine is known to develop oil leaks over time, particularly around the valve cover gaskets and oil pan gasket.
Timing belt wear
This engine uses a timing belt that needs regular replacement (usually every 90,000 miles) to prevent catastrophic engine damage.
Exhaust manifold cracks
The cast iron exhaust manifolds are prone to cracking, which can lead to exhaust leaks and reduced engine performance.
Ignition coil failure
The ignition coils on the 2UZ-FE engine can fail, leading to misfires and rough running conditions.
Cooling system issues
Over time, components like the radiator, water pump, and thermostat can fail, leading to overheating issues.
Throttle body problems
Carbon build-up in the throttle body can cause poor idling and throttle response problems.
Fuel injector issues
Fuel injectors can become clogged or fail, leading to poor engine performance and increased fuel consumption.
Oxygen sensor failure
The oxygen sensors can fail, causing the engine to run inefficiently and potentially trigger the check engine light.
TOYOTA 4-Runner 2004

The 2004 Toyota 4-Runner Limited is a robust SUV featuring a 4.7L V8 engine (2UZ-FE) with 227-284 hp, equipped with 4WD. Manufactured in Tahara, Japan, this model boasts a Dual Overhead Cam (DOHC) valve train and Sequential Fuel Injection (SFI). With a gross vehicle weight rating of Class 2E, it offers a reliable and versatile driving experience ideal for both on-road and off-road adventures.

Spec:

Engine Brake (hp) From
227
Engine Brake (hp) To
284
Engine Configuration
V-Shaped
Engine Manufacturer
Toyota
Engine Model
2UZ-FE
Engine Number of Cylinders
8
Engine Stroke Cycles
4

Problems:

Oil leaks
The 2UZ-FE engine is known for oil leaks, especially from the valve cover gaskets and the oil pan.
Timing belt wear
This engine uses a timing belt which requires regular replacement. If neglected, it can lead to severe engine damage.
Exhaust manifold cracks
The V-shaped configuration can lead to heat stress on the exhaust manifolds, causing them to crack.
Fuel injector issues
The fuel injectors can become clogged or fail, leading to poor engine performance and reduced fuel efficiency.
Cooling system problems
Issues with the radiator, water pump, or thermostat can lead to overheating, which is harmful to the engine.
Spark plug wear
The 8-cylinder configuration means more spark plugs to maintain, and worn spark plugs can cause misfires and poor performance.
Mass air flow sensor failure
This sensor can become dirty or fail, leading to incorrect air-to-fuel ratio and reduced engine efficiency.
Throttle body problems
The throttle body can become dirty or faulty, affecting acceleration and engine response.
Ignition coil failures
The 2UZ-FE engine may experience ignition coil failures, leading to misfires and reduced engine power.
TOYOTA 4-Runner 2004

The 2004 Toyota 4Runner SR5 is a robust SUV with a 4.7L V8 engine (2UZ-FE) delivering between 227 to 284 horsepower. Manufactured in Tahara, Japan, this 4WD vehicle features a dual overhead cam (DOHC) valve train design and sequential fuel injection. With a gross vehicle weight rating in Class 2E, it offers a versatile and reliable driving experience.

Spec:

Engine Brake (hp) From
227
Engine Brake (hp) To
284
Engine Configuration
V-Shaped
Engine Manufacturer
Toyota
Engine Model
2UZ-FE
Engine Number of Cylinders
8
Engine Stroke Cycles
4

Problems:

Oil leaks
The 2UZ-FE engine is known for oil leaks, especially from the valve cover gaskets and the oil pan.
Timing belt wear
This engine uses a timing belt which requires regular replacement. If neglected, it can lead to severe engine damage.
Exhaust manifold cracks
The V-shaped configuration can lead to heat stress on the exhaust manifolds, causing them to crack.
Fuel injector issues
The fuel injectors can become clogged or fail, leading to poor engine performance and reduced fuel efficiency.
Cooling system problems
Issues with the radiator, water pump, or thermostat can lead to overheating, which is harmful to the engine.
Spark plug wear
The 8-cylinder configuration means more spark plugs to maintain, and worn spark plugs can cause misfires and poor performance.
Mass air flow sensor failure
This sensor can become dirty or fail, leading to incorrect air-to-fuel ratio and reduced engine efficiency.
Throttle body problems
The throttle body can become dirty or faulty, affecting acceleration and engine response.
Ignition coil failures
The 2UZ-FE engine may experience ignition coil failures, leading to misfires and reduced engine power.
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