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Most Common Car Issues Vin Explorer

Most Common Car Issues

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Engine Manufacturer
Porsche AG
Model
911

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Engine Brake (hp) From
Engine Number of Cylinders
Make
Model Year

MOST COMMON PROBLEMS

PORSCHE 911 1990

The 1990 Porsche 911 Carrera Convertible is a classic, high-performance sports car featuring a 3.6L 6-cylinder engine producing 247 horsepower. Built in Stuttgart-Zuffenhausen, Germany, this two-door cabriolet offers exhilarating driving dynamics and timeless design. Enjoy the thrill of open-top motoring with the added safety of front airbags and a passive restraint system.

Spec:

Engine Brake (hp) From
247
Engine Manufacturer
Porsche AG
Engine Number of Cylinders
6

Problems:

Oil leaks
Porsche 911 engines, especially older models, are notorious for developing oil leaks due to aging gaskets and seals.
Valve guide wear
Over time, the valve guides can wear out, leading to excessive oil consumption and smoke from the exhaust.
Timing chain tensioner failure
The timing chain tensioners can fail, causing poor engine performance and potential engine damage if not addressed.
Cylinder head cracks
The air-cooled engines in older 911s are prone to developing cracks in the cylinder heads, leading to coolant loss and overheating issues.
Worn piston rings
High-mileage engines may develop worn piston rings, resulting in reduced compression and increased oil consumption.
Fuel injection problems
The fuel injection system may develop issues over time, such as clogged injectors or failing fuel pumps, leading to poor engine performance.
Exhaust system corrosion
The exhaust system, particularly on older models, can suffer from corrosion, leading to leaks and increased exhaust noise.
Ignition system issues
Problems with the ignition system, such as failing spark plugs, ignition coils, or distributor components, can cause misfires and rough running.
PORSCHE 911 1990

Experience the thrill of driving the 1990 Porsche 911 Carrera Convertible. With a 3.6L engine delivering 247 hp, this German-engineered masterpiece combines power and elegance. Enjoy the open road with top-down freedom and the security of a passive restraint system. Crafted in Stuttgart-Zuffenhausen, this two-door icon is the epitome of Porsche's commitment to performance and luxury.

Spec:

Engine Brake (hp) From
247
Engine Manufacturer
Porsche AG
Engine Number of Cylinders
6

Problems:

Oil leaks
Porsche 911 engines, especially older models, are notorious for developing oil leaks due to aging gaskets and seals.
Valve guide wear
Over time, the valve guides can wear out, leading to excessive oil consumption and smoke from the exhaust.
Timing chain tensioner failure
The timing chain tensioners can fail, causing poor engine performance and potential engine damage if not addressed.
Cylinder head cracks
The air-cooled engines in older 911s are prone to developing cracks in the cylinder heads, leading to coolant loss and overheating issues.
Worn piston rings
High-mileage engines may develop worn piston rings, resulting in reduced compression and increased oil consumption.
Fuel injection problems
The fuel injection system may develop issues over time, such as clogged injectors or failing fuel pumps, leading to poor engine performance.
Exhaust system corrosion
The exhaust system, particularly on older models, can suffer from corrosion, leading to leaks and increased exhaust noise.
Ignition system issues
Problems with the ignition system, such as failing spark plugs, ignition coils, or distributor components, can cause misfires and rough running.
PORSCHE 911 1990

This 1990 Porsche 911 Carrera is a classic coupe with a 3.6L engine producing 247 hp, manufactured by Porsche AG in Stuttgart-Zuffenhausen, Germany. It features a 6-cylinder engine and a passive restraint system for front airbags. With its iconic design and engineering, this vehicle remains a timeless testament to Porsche's legacy.

Spec:

Engine Brake (hp) From
247
Engine Manufacturer
Porsche AG
Engine Number of Cylinders
6

Problems:

Oil leaks
Porsche 911 engines, especially older models, are notorious for developing oil leaks due to aging gaskets and seals.
Valve guide wear
Over time, the valve guides can wear out, leading to excessive oil consumption and smoke from the exhaust.
Timing chain tensioner failure
The timing chain tensioners can fail, causing poor engine performance and potential engine damage if not addressed.
Cylinder head cracks
The air-cooled engines in older 911s are prone to developing cracks in the cylinder heads, leading to coolant loss and overheating issues.
Worn piston rings
High-mileage engines may develop worn piston rings, resulting in reduced compression and increased oil consumption.
Fuel injection problems
The fuel injection system may develop issues over time, such as clogged injectors or failing fuel pumps, leading to poor engine performance.
Exhaust system corrosion
The exhaust system, particularly on older models, can suffer from corrosion, leading to leaks and increased exhaust noise.
Ignition system issues
Problems with the ignition system, such as failing spark plugs, ignition coils, or distributor components, can cause misfires and rough running.
PORSCHE 911 1991

The 1991 Porsche 911 Carrera is a classic convertible with a 3.6L engine delivering 247 hp. Manufactured in Stuttgart-Zuffenhausen, Germany, this two-door sports car features a 6-cylinder engine and a passive restraint system. It's a quintessential blend of performance and style from Porsche AG.

Spec:

Engine Brake (hp) From
247
Engine Manufacturer
Porsche AG
Engine Number of Cylinders
6

Problems:

Oil leaks
Older Porsche 911 models, including the 1991 version, are notorious for oil leaks, particularly from the valve covers and oil return tubes.
Cylinder head issues
The air-cooled engines in older 911s can develop cracks in the cylinder heads, leading to loss of compression and engine performance issues.
Timing chain tensioner failure
The timing chain tensioners in these engines can fail over time, causing the timing chain to become loose and potentially leading to severe engine damage.
Valve guide wear
Excessive wear on the valve guides can lead to increased oil consumption and reduced engine performance.
Cooling system problems
Being air-cooled, the engine can suffer from overheating issues, especially if the cooling fins are clogged or the cooling fan is malfunctioning.
Worn engine mounts
Over time, the engine mounts can wear out, leading to increased engine vibration and noise.
Fuel injection issues
The fuel injection system, particularly the Bosch Motronic system used in this era, can develop problems that affect engine performance and fuel efficiency.
Exhaust system corrosion
The exhaust system components, including the headers and mufflers, can corrode over time, leading to exhaust leaks and increased emissions.
Intake manifold leaks
The rubber intake manifold gaskets can deteriorate, causing vacuum leaks that lead to rough idling and poor engine performance.
PORSCHE 911 1990

The 1990 Porsche 911 Carrera is a classic convertible with a 3.6L engine, producing 247 hp from its 6-cylinder engine. Manufactured in Stuttgart-Zuffenhausen, Germany, this two-door sports car features a passive restraint system and front airbags for both driver and passenger. With its iconic design and robust performance, it's a standout in the realm of luxury passenger cars.

Spec:

Engine Brake (hp) From
247
Engine Manufacturer
Porsche AG
Engine Number of Cylinders
6

Problems:

Oil leaks
Porsche 911 engines, especially older models, are notorious for developing oil leaks due to aging gaskets and seals.
Valve guide wear
Over time, the valve guides can wear out, leading to excessive oil consumption and smoke from the exhaust.
Timing chain tensioner failure
The timing chain tensioners can fail, causing poor engine performance and potential engine damage if not addressed.
Cylinder head cracks
The air-cooled engines in older 911s are prone to developing cracks in the cylinder heads, leading to coolant loss and overheating issues.
Worn piston rings
High-mileage engines may develop worn piston rings, resulting in reduced compression and increased oil consumption.
Fuel injection problems
The fuel injection system may develop issues over time, such as clogged injectors or failing fuel pumps, leading to poor engine performance.
Exhaust system corrosion
The exhaust system, particularly on older models, can suffer from corrosion, leading to leaks and increased exhaust noise.
Ignition system issues
Problems with the ignition system, such as failing spark plugs, ignition coils, or distributor components, can cause misfires and rough running.
PORSCHE 911 1991

Experience the thrill of the 1991 Porsche 911 Turbo, a German-engineered marvel from Stuttgart-Zuffenhausen. This iconic coupe boasts a powerful 3.3L, 6-cylinder engine delivering 315 hp, ensuring exhilarating performance. With its sleek two-door design and advanced safety features, including front airbags and a passive restraint system, it epitomizes Porsche's commitment to excellence.

Spec:

Engine Brake (hp) From
315
Engine Manufacturer
Porsche AG
Engine Number of Cylinders
6

Problems:

Oil leaks
Older Porsche 911 models, especially those with air-cooled engines, are prone to oil leaks due to worn gaskets and seals.
Valve guide wear
The valve guides in the engine can wear out over time, leading to increased oil consumption and smoke from the exhaust.
Timing chain tensioner failure
The timing chain tensioners can fail, which may cause the timing chain to become loose and lead to engine damage.
Cylinder head cracks
Air-cooled engines can develop cracks in the cylinder heads, especially if the engine has been overheated.
Fuel injector issues
Clogged or malfunctioning fuel injectors can lead to poor engine performance and reduced fuel efficiency.
Spark plug fouling
Spark plugs can become fouled with oil or carbon deposits, causing misfires and rough running.
Air intake leaks
Leaks in the air intake system can cause unmetered air to enter the engine, leading to poor performance and drivability issues.
Cooling system problems
Although air-cooled, these engines can still suffer from inadequate cooling, especially in hot climates or during spirited driving.
PORSCHE 911 1991

The 1991 Porsche 911 Carrera is a classic convertible equipped with a powerful 3.6L engine, producing 247 horsepower. Manufactured in Stuttgart-Zuffenhausen, Germany, this iconic sports car features a 6-cylinder engine and a passive restraint system for safety. With its sleek design and top-down driving experience, the 911 Carrera remains a timeless symbol of Porsche's engineering excellence.

Spec:

Engine Brake (hp) From
247
Engine Manufacturer
Porsche AG
Engine Number of Cylinders
6

Problems:

Oil leaks
Older Porsche 911 models, including the 1991 version, are notorious for oil leaks, particularly from the valve covers and oil return tubes.
Cylinder head issues
The air-cooled engines in older 911s can develop cracks in the cylinder heads, leading to loss of compression and engine performance issues.
Timing chain tensioner failure
The timing chain tensioners in these engines can fail over time, causing the timing chain to become loose and potentially leading to severe engine damage.
Valve guide wear
Excessive wear on the valve guides can lead to increased oil consumption and reduced engine performance.
Cooling system problems
Being air-cooled, the engine can suffer from overheating issues, especially if the cooling fins are clogged or the cooling fan is malfunctioning.
Worn engine mounts
Over time, the engine mounts can wear out, leading to increased engine vibration and noise.
Fuel injection issues
The fuel injection system, particularly the Bosch Motronic system used in this era, can develop problems that affect engine performance and fuel efficiency.
Exhaust system corrosion
The exhaust system components, including the headers and mufflers, can corrode over time, leading to exhaust leaks and increased emissions.
Intake manifold leaks
The rubber intake manifold gaskets can deteriorate, causing vacuum leaks that lead to rough idling and poor engine performance.
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