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Most Common Car Issues

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Q45

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Engine Manufacturer
Engine Model
Engine Number of Cylinders
Make
Model Year

MOST COMMON PROBLEMS

INFINITI Q45 1997

The 1997 INFINITI Q45 is a classic sedan, manufactured by NISSAN MOTOR COMPANY, LTD in Tochigi, Japan. This model features a 4.0-liter engine with a displacement of 4000 cc, and operates on a 4x2 drive type. It offers essential safety features like front and side airbags for both the driver and passenger in the first row. Designed as a passenger car, it meets the Class 1 weight rating, perfect for those seeking a balance of performance and comfort.

Spec:

Problems:

Oil consumption
The 1997 INFINITI Q45 may experience higher oil consumption due to engine wear or oil leaks.
Transmission issues
Owners often report problems with the automatic transmission, such as rough shifting or transmission failure.
Electrical problems
Common electrical issues include malfunctioning power windows, door locks, and dashboard instrument cluster.
Suspension wear
Over time, the suspension components such as struts, shocks, and bushings may wear out, leading to a rough ride or poor handling.
Cooling system failures
Problems with the radiator, water pump, or coolant hoses can lead to overheating issues.
Fuel system problems
Issues like a faulty fuel pump or clogged fuel injectors can cause poor engine performance or stalling.
Timing chain noise
The timing chain can become noisy or stretched, leading to potential engine damage if not addressed.
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
8

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 1998

The 1998 INFINITI Q45 is a luxury sedan with a 4.1L V8 engine, offering a robust 250.2 CI of displacement. Manufactured by Nissan Motor Company in Tochigi, Japan, this model features front and side airbags for the driver and passenger, ensuring safety. With a gross vehicle weight rating of up to 6,000 lbs, it combines performance with a secure driving experience.

Spec:

Problems:

Oil consumption
The 1998 INFINITI Q45 is known for higher than average oil consumption, which can lead to engine damage if not monitored and managed correctly.
Timing chain issues
Over time, the timing chain can stretch or wear out, causing poor engine performance or even engine failure if it breaks.
Transmission problems
Some owners report issues with the automatic transmission, such as rough shifting or failure to engage.
Fuel injector failure
The fuel injectors on this model can become clogged or fail, leading to poor engine performance and fuel efficiency.
Electrical problems
The 1998 INFINITI Q45 may experience various electrical issues, such as problems with the dashboard lights or power windows.
Cooling system leaks
Leaks in the cooling system, often from the radiator or hoses, can lead to overheating and potential engine damage if not addressed.
Suspension wear
Components of the suspension system, such as bushings and control arms, may wear out over time, leading to a rough ride or handling issues.
INFINITI Q45 1992

The 1992 INFINITI Q45 is a luxury sedan boasting a 4.5L V8 engine (VH45E) with a V-shaped configuration and 8 cylinders. Manufactured by Nissan Motor Company in Tochigi, Japan, this model features 4 doors and a driver-side front airbag. It falls under Class 1 with a gross vehicle weight rating of 6,000 lbs or less.

Spec:

Engine Configuration
V-Shaped
Engine Model
VH45E
Engine Number of Cylinders
8

Problems:

Oil leaks
The VH45E engine, especially in older models like the 1992 INFINITI Q45, is prone to oil leaks due to aging gaskets and seals.
Timing chain wear
The timing chain can stretch or wear over time, leading to poor engine performance and potential engine damage if not addressed.
Coolant leaks
The cooling system may develop leaks, often at the water pump or radiator, which can cause overheating if not repaired.
Valve cover gasket failure
Valve cover gaskets can deteriorate, leading to oil seepage and potential contamination of spark plugs.
Fuel injector issues
Fuel injectors can become clogged or fail, causing rough idling, poor fuel economy, and engine misfires.
Intake manifold gasket leaks
The intake manifold gaskets may develop leaks, causing vacuum leaks and poor engine performance.
Ignition coil failure
Ignition coils can fail, leading to misfires, rough running, and difficulty starting the engine.
Mass air flow sensor problems
The mass air flow sensor may become dirty or fail, resulting in incorrect air/fuel mixture and poor engine performance.
Throttle body issues
The throttle body can become dirty or malfunction, affecting acceleration and overall engine responsiveness.
Crankshaft position sensor failure
A failing crankshaft position sensor can lead to stalling, no-start conditions, and erratic engine behavior.
INFINITI Q45 2001

The 2001 INFINITI Q45 is a luxury sedan powered by a robust 4.1L V8 engine, delivering a displacement of 4100 CC. Manufactured in Tochigi, Japan by Nissan Motor Company, this model features 4 doors and comprehensive safety with front and side airbags for both the driver and passenger. Equipped with 3-point manual belts, it offers a comfortable and secure driving experience. This vehicle falls under the Class 1 weight rating, suitable for a gross vehicle weight of 6,000 lb or less.

Spec:

Engine Configuration
V-Shaped
Engine Model
VH41
Engine Number of Cylinders
8

Problems:

Oil leaks
The VH41 engine is known to develop oil leaks, particularly from the valve cover gaskets and the front and rear main seals.
Timing chain issues
Over time, the timing chain and its associated tensioners can wear out, leading to noise and potential engine misalignment.
Cooling system problems
Radiator, water pump, and thermostat failures can lead to overheating, which is a common issue in older V8 engines.
Ignition coil failure
The ignition coils can fail, leading to misfires and poor engine performance.
Fuel injector problems
Clogged or failing fuel injectors can cause rough idling, hesitation, and reduced fuel efficiency.
Mass air flow sensor failure
The MAF sensor can become dirty or fail, leading to incorrect air-fuel mixture and engine performance issues.
Pcv valve issues
A faulty Positive Crankcase Ventilation (PCV) valve can cause oil consumption and rough engine operation.
Vacuum leaks
Cracked or deteriorated vacuum hoses can lead to vacuum leaks, causing poor engine performance and erratic idling.
Camshaft position sensor failure
A failing camshaft position sensor can cause starting issues and erratic engine behavior.
Egr valve problems
The Exhaust Gas Recirculation (EGR) valve can become clogged, leading to increased emissions and poor engine performance.
INFINITI Q45 1992

The 1992 INFINITI Q45 is a luxurious sedan equipped with a powerful 4.5L V8 VH45E engine, delivering robust performance. Manufactured by Nissan in Tochigi, Japan, this vehicle features a classic four-door design and is built for drivers who prioritize both comfort and power. With a gross vehicle weight rating under 6,000 lbs, it is classified as a Class 1 passenger car. The Q45 also includes a driver's front airbag for added safety.

Spec:

Engine Configuration
V-Shaped
Engine Model
VH45E
Engine Number of Cylinders
8

Problems:

Oil leaks
The VH45E engine, especially in older models like the 1992 INFINITI Q45, is prone to oil leaks due to aging gaskets and seals.
Timing chain wear
The timing chain can stretch or wear over time, leading to poor engine performance and potential engine damage if not addressed.
Coolant leaks
The cooling system may develop leaks, often at the water pump or radiator, which can cause overheating if not repaired.
Valve cover gasket failure
Valve cover gaskets can deteriorate, leading to oil seepage and potential contamination of spark plugs.
Fuel injector issues
Fuel injectors can become clogged or fail, causing rough idling, poor fuel economy, and engine misfires.
Intake manifold gasket leaks
The intake manifold gaskets may develop leaks, causing vacuum leaks and poor engine performance.
Ignition coil failure
Ignition coils can fail, leading to misfires, rough running, and difficulty starting the engine.
Mass air flow sensor problems
The mass air flow sensor may become dirty or fail, resulting in incorrect air/fuel mixture and poor engine performance.
Throttle body issues
The throttle body can become dirty or malfunction, affecting acceleration and overall engine responsiveness.
Crankshaft position sensor failure
A failing crankshaft position sensor can lead to stalling, no-start conditions, and erratic engine behavior.
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
8

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 1997

The 1997 INFINITI Q45 is a luxurious Japanese sedan with a 4.0L V8 engine delivering robust performance. This 4-door, 4x2 drive vehicle offers comfort and safety with front airbags and manual seat belts. Manufactured by Nissan at the Tochigi Plant in Japan, it provides a smooth and refined driving experience. Ideal for those seeking a blend of power and elegance.

Spec:

Problems:

Oil consumption
The 1997 INFINITI Q45 may experience higher oil consumption due to engine wear or oil leaks.
Transmission issues
Owners often report problems with the automatic transmission, such as rough shifting or transmission failure.
Electrical problems
Common electrical issues include malfunctioning power windows, door locks, and dashboard instrument cluster.
Suspension wear
Over time, the suspension components such as struts, shocks, and bushings may wear out, leading to a rough ride or poor handling.
Cooling system failures
Problems with the radiator, water pump, or coolant hoses can lead to overheating issues.
Fuel system problems
Issues like a faulty fuel pump or clogged fuel injectors can cause poor engine performance or stalling.
Timing chain noise
The timing chain can become noisy or stretched, leading to potential engine damage if not addressed.
INFINITI Q45 1998

The 1998 INFINITI Q45 is a luxury sedan with a 4.1L V8 engine producing robust performance. Manufactured by Nissan Motor Company in Tochigi, Japan, this model features 4 doors and comprehensive safety with front and side airbags for the driver and passenger. The Q45 runs on gasoline and falls under Class 1 for its gross vehicle weight rating.

Spec:

Problems:

Oil consumption
The 1998 INFINITI Q45 is known for higher than average oil consumption, which can lead to engine damage if not monitored and managed correctly.
Timing chain issues
Over time, the timing chain can stretch or wear out, causing poor engine performance or even engine failure if it breaks.
Transmission problems
Some owners report issues with the automatic transmission, such as rough shifting or failure to engage.
Fuel injector failure
The fuel injectors on this model can become clogged or fail, leading to poor engine performance and fuel efficiency.
Electrical problems
The 1998 INFINITI Q45 may experience various electrical issues, such as problems with the dashboard lights or power windows.
Cooling system leaks
Leaks in the cooling system, often from the radiator or hoses, can lead to overheating and potential engine damage if not addressed.
Suspension wear
Components of the suspension system, such as bushings and control arms, may wear out over time, leading to a rough ride or handling issues.
INFINITI Q45 1995

The 1995 INFINITI Q45 is a luxury sedan with a 4.5L V8 engine, delivering 4500.0 CC of displacement. Manufactured by Nissan Motor Company in Tochigi, Japan, this 4-door, 4x2 drive type sedan offers a comfortable ride. It falls under the Class 1 weight rating, suitable for a gross vehicle weight of 6,000 lb or less. Key safety features include an automatic seat belt system and a driver's side airbag.

Spec:

Problems:

Oil leaks
The 1995 INFINITI Q45 is known to experience oil leaks, often from the valve cover gaskets or oil pan gasket, leading to potential engine damage if not addressed.
Transmission issues
Some owners report issues with the automatic transmission, including slipping, hard shifting, or failure to shift properly.
Power steering problems
The power steering system can develop leaks or the power steering pump may fail, leading to difficulty in steering.
Electrical problems
Electrical issues such as faulty window regulators, door locks, and issues with the climate control system are common in this model.
Suspension wear
Over time, the suspension components such as bushings, ball joints, and struts may wear out, leading to a less comfortable ride and handling issues.
Cooling system failures
Radiator and thermostat failures can occur, leading to overheating and potential engine damage if not repaired promptly.
Fuel pump failure
The fuel pump may fail, causing starting issues or stalling while driving.
Mass air flow sensor issues
A faulty mass air flow sensor can lead to poor engine performance, reduced fuel economy, and rough idling.
INFINITI Q45 1995

The 1995 INFINITI Q45 is a 4-door sedan powered by a 4.5L V8 engine. Manufactured by Nissan Motor Company in Tochigi, Japan, it features a 4x2 drive type and comes equipped with automatic seat belts and a driver's side airbag. This luxurious passenger car runs on gasoline and falls under the Class 1 weight rating, making it a stylish yet practical choice.

Spec:

Problems:

Oil leaks
The 1995 INFINITI Q45 is known to experience oil leaks, often from the valve cover gaskets or oil pan gasket, leading to potential engine damage if not addressed.
Transmission issues
Some owners report issues with the automatic transmission, including slipping, hard shifting, or failure to shift properly.
Power steering problems
The power steering system can develop leaks or the power steering pump may fail, leading to difficulty in steering.
Electrical problems
Electrical issues such as faulty window regulators, door locks, and issues with the climate control system are common in this model.
Suspension wear
Over time, the suspension components such as bushings, ball joints, and struts may wear out, leading to a less comfortable ride and handling issues.
Cooling system failures
Radiator and thermostat failures can occur, leading to overheating and potential engine damage if not repaired promptly.
Fuel pump failure
The fuel pump may fail, causing starting issues or stalling while driving.
Mass air flow sensor issues
A faulty mass air flow sensor can lead to poor engine performance, reduced fuel economy, and rough idling.
INFINITI Q45 1995

The 1995 INFINITI Q45 is a luxury sedan with a 4.5L V8 engine, producing robust performance. Manufactured by NISSAN MOTOR COMPANY, LTD in Tochigi, Japan, it features automatic seat belts and a side airbag for the driver. This 4x2 drive car falls under Class 1 for vehicle weight, making it a stylish yet practical option for daily driving.

Spec:

Problems:

Oil leaks
The 1995 INFINITI Q45 is known to experience oil leaks, often from the valve cover gaskets or oil pan gasket, leading to potential engine damage if not addressed.
Transmission issues
Some owners report issues with the automatic transmission, including slipping, hard shifting, or failure to shift properly.
Power steering problems
The power steering system can develop leaks or the power steering pump may fail, leading to difficulty in steering.
Electrical problems
Electrical issues such as faulty window regulators, door locks, and issues with the climate control system are common in this model.
Suspension wear
Over time, the suspension components such as bushings, ball joints, and struts may wear out, leading to a less comfortable ride and handling issues.
Cooling system failures
Radiator and thermostat failures can occur, leading to overheating and potential engine damage if not repaired promptly.
Fuel pump failure
The fuel pump may fail, causing starting issues or stalling while driving.
Mass air flow sensor issues
A faulty mass air flow sensor can lead to poor engine performance, reduced fuel economy, and rough idling.
INFINITI Q45 2001

The 2001 INFINITI Q45 is a sophisticated sedan equipped with a powerful 4.1L V8 engine, producing a displacement of 4100cc. Manufactured by Nissan Motor Company in Tochigi, Japan, this vehicle features 4 doors, and offers advanced safety with front and side airbags for both driver and passenger. Ideal for those seeking luxury and performance in a passenger car.

Spec:

Engine Configuration
V-Shaped
Engine Model
VH41
Engine Number of Cylinders
8

Problems:

Oil leaks
The VH41 engine is known to develop oil leaks, particularly from the valve cover gaskets and the front and rear main seals.
Timing chain issues
Over time, the timing chain and its associated tensioners can wear out, leading to noise and potential engine misalignment.
Cooling system problems
Radiator, water pump, and thermostat failures can lead to overheating, which is a common issue in older V8 engines.
Ignition coil failure
The ignition coils can fail, leading to misfires and poor engine performance.
Fuel injector problems
Clogged or failing fuel injectors can cause rough idling, hesitation, and reduced fuel efficiency.
Mass air flow sensor failure
The MAF sensor can become dirty or fail, leading to incorrect air-fuel mixture and engine performance issues.
Pcv valve issues
A faulty Positive Crankcase Ventilation (PCV) valve can cause oil consumption and rough engine operation.
Vacuum leaks
Cracked or deteriorated vacuum hoses can lead to vacuum leaks, causing poor engine performance and erratic idling.
Camshaft position sensor failure
A failing camshaft position sensor can cause starting issues and erratic engine behavior.
Egr valve problems
The Exhaust Gas Recirculation (EGR) valve can become clogged, leading to increased emissions and poor engine performance.
INFINITI Q45 1995

The 1995 INFINITI Q45 is a luxurious sedan equipped with a 4.5L V8 engine, providing a powerful and smooth driving experience. Manufactured by NISSAN MOTOR COMPANY, LTD at the Tochigi Plant in Japan, this model features a 4-door design and a 4x2 drive type. Designed for comfort and safety, it includes an automatic seat belt system and a side airbag for the driver. This vehicle fits within the Class 1 weight rating, making it a robust yet manageable passenger car.

Spec:

Problems:

Oil leaks
The 1995 INFINITI Q45 is known to experience oil leaks, often from the valve cover gaskets or oil pan gasket, leading to potential engine damage if not addressed.
Transmission issues
Some owners report issues with the automatic transmission, including slipping, hard shifting, or failure to shift properly.
Power steering problems
The power steering system can develop leaks or the power steering pump may fail, leading to difficulty in steering.
Electrical problems
Electrical issues such as faulty window regulators, door locks, and issues with the climate control system are common in this model.
Suspension wear
Over time, the suspension components such as bushings, ball joints, and struts may wear out, leading to a less comfortable ride and handling issues.
Cooling system failures
Radiator and thermostat failures can occur, leading to overheating and potential engine damage if not repaired promptly.
Fuel pump failure
The fuel pump may fail, causing starting issues or stalling while driving.
Mass air flow sensor issues
A faulty mass air flow sensor can lead to poor engine performance, reduced fuel economy, and rough idling.
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
8

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 1995

The 1995 INFINITI Q45 is a luxurious sedan with a powerful 4.5L V8 engine, offering 274.6 cubic inches of displacement and a smooth 4x2 drive type. Manufactured by Nissan Motor Company in Tochigi, Japan, this model is known for its refined build and advanced safety features like an automatic seat belt and driver-side airbag. Ideal for those seeking a blend of performance and elegance in a passenger car.

Spec:

Problems:

Oil leaks
The 1995 INFINITI Q45 is known to experience oil leaks, often from the valve cover gaskets or oil pan gasket, leading to potential engine damage if not addressed.
Transmission issues
Some owners report issues with the automatic transmission, including slipping, hard shifting, or failure to shift properly.
Power steering problems
The power steering system can develop leaks or the power steering pump may fail, leading to difficulty in steering.
Electrical problems
Electrical issues such as faulty window regulators, door locks, and issues with the climate control system are common in this model.
Suspension wear
Over time, the suspension components such as bushings, ball joints, and struts may wear out, leading to a less comfortable ride and handling issues.
Cooling system failures
Radiator and thermostat failures can occur, leading to overheating and potential engine damage if not repaired promptly.
Fuel pump failure
The fuel pump may fail, causing starting issues or stalling while driving.
Mass air flow sensor issues
A faulty mass air flow sensor can lead to poor engine performance, reduced fuel economy, and rough idling.
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