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Most Common Car Issues Vin Explorer

Most Common Car Issues

Selected parameters

Engine Brake (hp) From
220
Model
4-Runner

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Engine Configuration
Engine Manufacturer
Engine Model
Engine Number of Cylinders
Engine Stroke Cycles
Make
Model Year

MOST COMMON PROBLEMS

TOYOTA 4-Runner 2003

The 2003 Toyota 4-Runner SR5 is a robust SUV featuring a 4.0L V6 engine with 220 horsepower, manufactured by Toyota Motor Corporation in Tahara, Japan. It has a 4WD drive type and a dual overhead cam (DOHC) valve train design. This multipurpose passenger vehicle is designed for both urban and off-road adventures, boasting a 5-door configuration and a gross vehicle weight rating of Class 1D.

Spec:

Engine Brake (hp) From
220
Engine Configuration
V-Shaped
Engine Manufacturer
Toyota
Engine Model
1GR-FE
Engine Number of Cylinders
6
Engine Stroke Cycles
4

Problems:

Oil leaks
The 1GR-FE engine in the 2003 Toyota 4-Runner is known for developing oil leaks, particularly from the valve cover gaskets and the front timing cover.
Head gasket failure
As the vehicle ages, the head gasket may fail, leading to coolant leaks and potential engine overheating.
Timing chain issues
The timing chain tensioner and guides can wear out over time, causing noise and potential misalignment of the timing chain.
Fuel injector problems
The fuel injectors may become clogged or fail, leading to poor engine performance and misfires.
Mass air flow sensor failure
The MAF sensor can become dirty or fail, resulting in incorrect air-fuel mixture and poor engine performance.
Spark plug and ignition coil issues
Misfires and poor engine performance can occur due to worn spark plugs or failing ignition coils.
Exhaust manifold cracks
The exhaust manifold can develop cracks, leading to exhaust leaks and reduced engine performance.
Cooling system leaks
Radiator, hoses, and water pump leaks can cause the engine to overheat if not addressed.
Throttle body problems
Carbon buildup in the throttle body can cause poor idling and reduced throttle response.
TOYOTA 4-Runner 2003

The 2003 Toyota 4Runner SR5 is a robust Sport Utility Vehicle (SUV) built for versatility and performance. It features a 4.0L V6 engine (1GR-FE) with 220 hp, a 4WD drive type, and a Dual Overhead Cam (DOHC) valve train design. Manufactured by Toyota Motor North America, Inc. in Hamura, Japan, it's designed for both rugged terrains and everyday utility.

Spec:

Engine Brake (hp) From
220
Engine Configuration
V-Shaped
Engine Manufacturer
Toyota
Engine Model
1GR-FE
Engine Number of Cylinders
6
Engine Stroke Cycles
4

Problems:

Oil leaks
The 1GR-FE engine in the 2003 Toyota 4-Runner is known for developing oil leaks, particularly from the valve cover gaskets and the front timing cover.
Head gasket failure
As the vehicle ages, the head gasket may fail, leading to coolant leaks and potential engine overheating.
Timing chain issues
The timing chain tensioner and guides can wear out over time, causing noise and potential misalignment of the timing chain.
Fuel injector problems
The fuel injectors may become clogged or fail, leading to poor engine performance and misfires.
Mass air flow sensor failure
The MAF sensor can become dirty or fail, resulting in incorrect air-fuel mixture and poor engine performance.
Spark plug and ignition coil issues
Misfires and poor engine performance can occur due to worn spark plugs or failing ignition coils.
Exhaust manifold cracks
The exhaust manifold can develop cracks, leading to exhaust leaks and reduced engine performance.
Cooling system leaks
Radiator, hoses, and water pump leaks can cause the engine to overheat if not addressed.
Throttle body problems
Carbon buildup in the throttle body can cause poor idling and reduced throttle response.
TOYOTA 4-Runner 2003

The 2003 Toyota 4-Runner SR5 is a robust SUV featuring a 4.0L V6 engine (1GR-FE) with dual overhead cam design, delivering 220 hp. It has a 4WD drive type and a water-cooled engine. This multipurpose passenger vehicle was manufactured in Tahara, Japan by Toyota Motor Corporation. With a gross vehicle weight rating from 5,001 to 6,000 lbs, it’s built for both rugged and urban terrains.

Spec:

Engine Brake (hp) From
220
Engine Configuration
V-Shaped
Engine Manufacturer
Toyota
Engine Model
1GR-FE
Engine Number of Cylinders
6
Engine Stroke Cycles
4

Problems:

Oil leaks
The 1GR-FE engine in the 2003 Toyota 4-Runner is known for developing oil leaks, particularly from the valve cover gaskets and the front timing cover.
Head gasket failure
As the vehicle ages, the head gasket may fail, leading to coolant leaks and potential engine overheating.
Timing chain issues
The timing chain tensioner and guides can wear out over time, causing noise and potential misalignment of the timing chain.
Fuel injector problems
The fuel injectors may become clogged or fail, leading to poor engine performance and misfires.
Mass air flow sensor failure
The MAF sensor can become dirty or fail, resulting in incorrect air-fuel mixture and poor engine performance.
Spark plug and ignition coil issues
Misfires and poor engine performance can occur due to worn spark plugs or failing ignition coils.
Exhaust manifold cracks
The exhaust manifold can develop cracks, leading to exhaust leaks and reduced engine performance.
Cooling system leaks
Radiator, hoses, and water pump leaks can cause the engine to overheat if not addressed.
Throttle body problems
Carbon buildup in the throttle body can cause poor idling and reduced throttle response.
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