Most Common Car Issues

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Engine Configuration

Engine Manufacturer

Engine Number of Cylinders

Make

Model Year

MOST COMMON PROBLEMS

INFINITI Q45 2004

The 2004 INFINITI Q45 is a luxurious sedan powered by a 4.5L V8 engine (VK45DE) from Nissan, delivering robust performance with its V-shaped, dual overhead cam (DOHC) design. This 4-door, rear-wheel-drive (4x2) vehicle offers advanced safety features, including front and side airbags for the driver and passenger. Built in Nissan's Tochigi plant in Japan, the Q45 combines elegance with reliable engineering.

Spec:

Engine Configuration

V-Shaped

Engine Manufacturer

Nissan

Engine Model

VK45DE

Engine Number of Cylinders

Problems:

Oil consumption

The VK45DE engine is known to consume oil more rapidly than other engines, which can lead to low oil levels and potential engine damage if not regularly monitored and topped up.

Timing chain wear

Over time, the timing chain can stretch or wear out, causing poor engine performance, rough idling, and potentially severe engine damage if it fails.

Fuel injector issues

Fuel injectors can become clogged or fail, leading to poor fuel economy, rough running, and engine misfires.

Cooling system problems

There can be issues with the radiator, water pump, or thermostat, which may cause engine overheating if not addressed promptly.

Throttle body malfunction

The throttle body can become dirty or fail, leading to poor engine response, stalling, and rough idling.

Ignition coil failure

Ignition coils can fail, leading to misfires, poor performance, and difficulty starting the engine.

Valve cover gasket leaks

The valve cover gaskets can deteriorate over time, leading to oil leaks and potential engine damage if the oil level drops too low.

INFINITI Q45 2002

The 2002 INFINITI Q45 is a luxurious sedan powered by a 4.5L V8 engine, manufactured by Nissan. With a dual overhead cam (DOHC) valve train and a VK45DE engine model, it offers robust performance. This model, produced in Tochigi, Japan, features comprehensive safety with front and side airbags across all rows. A true blend of power and sophistication from INFINITI.

Spec:

Engine Configuration

V-Shaped

Engine Manufacturer

Nissan

Engine Model

VK45DE

Engine Number of Cylinders

Problems:

Oil consumption

The VK45DE engine is known to sometimes consume more oil than expected, which can lead to low oil levels if not regularly checked and topped up.

Timing chain issues

Some users have reported issues with the timing chain, such as stretching or failure, which can cause serious engine damage if not addressed.

Fuel injector problems

The fuel injectors on this model can sometimes become clogged or fail, leading to poor engine performance and reduced fuel efficiency.

Knocking noise

There have been instances of knocking noises coming from the engine, which could be caused by issues with the rod bearings or other internal components.

Cooling system failures

Problems with the radiator, water pump, or thermostat can lead to overheating, which can severely damage the engine.

Sensor failures

Various engine sensors, such as the oxygen sensor or mass airflow sensor, can fail over time, resulting in poor engine performance and check engine light activation.

Valve cover gasket leaks

The valve cover gaskets can deteriorate and start leaking oil, which can cause a variety of engine issues if not promptly repaired.

Spark plug and coil pack issues

Faulty spark plugs or coil packs can lead to misfires, rough idling, and poor acceleration.

INFINITI Q45 2002

The 2002 INFINITI Q45 is a luxurious sedan powered by a 4.5L V8 engine (VK45DE) manufactured by Nissan. It features a spacious 4-door design with advanced safety including front and side airbags for all rows. Built in Tochigi, Japan, this vehicle offers a smooth ride with its dual overhead cam (DOHC) valve train design and gasoline engine. Suitable for those seeking performance and comfort in a passenger car.

Spec:

Engine Configuration

V-Shaped

Engine Manufacturer

Nissan

Engine Model

VK45DE

Engine Number of Cylinders

Problems:

Oil consumption

The VK45DE engine is known to sometimes consume more oil than expected, which can lead to low oil levels if not regularly checked and topped up.

Timing chain issues

Some users have reported issues with the timing chain, such as stretching or failure, which can cause serious engine damage if not addressed.

Fuel injector problems

The fuel injectors on this model can sometimes become clogged or fail, leading to poor engine performance and reduced fuel efficiency.

Knocking noise

There have been instances of knocking noises coming from the engine, which could be caused by issues with the rod bearings or other internal components.

Cooling system failures

Problems with the radiator, water pump, or thermostat can lead to overheating, which can severely damage the engine.

Sensor failures

Various engine sensors, such as the oxygen sensor or mass airflow sensor, can fail over time, resulting in poor engine performance and check engine light activation.

Valve cover gasket leaks

The valve cover gaskets can deteriorate and start leaking oil, which can cause a variety of engine issues if not promptly repaired.

Spark plug and coil pack issues

Faulty spark plugs or coil packs can lead to misfires, rough idling, and poor acceleration.