Most Common Car Issues

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Engine Number of Cylinders

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Model

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MOST COMMON PROBLEMS

VOLVO V90 1998

The 1998 Volvo V90 is a classic wagon featuring a 2.9L in-line 6-cylinder engine, manufactured by VOLVO CAR CORPORATION in Torslanda, Sweden. Equipped with a B6304S engine, this model offers dual front airbags, pretensioners, and a range of advanced features such as OBDII and electronic control evap. With 5 doors and an automatic transmission, it's a reliable and spacious passenger car.

Spec:

Engine Configuration

In-Line

Engine Manufacturer

Volvo

Engine Model

B6304S

Engine Number of Cylinders

Other Engine Info

w/o EGR, w/air pump, w/OBDII, w/elec. control evap., Motronic 4.4, w/RuLo

Problems:

Oil leaks

Common in the B6304S engine due to aging gaskets and seals.

Timing belt issues

Risk of failure if not replaced at recommended intervals. Can cause significant engine damage.

Cooling system problems

Potential for radiator and water pump failures which can lead to overheating.

Fuel injector problems

Can become clogged or fail over time, affecting engine performance.

Electrical issues

Aging wiring and connections can lead to various electrical faults, including issues with the Motronic 4.4 system.

Crankcase ventilation system blockage

Can cause oil leaks and high oil consumption.

Air pump failures

The air pump can fail, leading to increased emissions and potential engine performance issues.

Egr valve issues

Even though this engine is listed without EGR, related components might cause problems if not functioning correctly.

Obdii sensor failures

Faulty sensors can trigger check engine light and affect engine performance.

Evaporative emission control system problems

Leaks or failures in the evap system can lead to fuel vapor leaks and check engine light activation.

VOLVO S90 1998

The 1998 Volvo S90 is a classic sedan equipped with a 2.9L inline-6 engine, producing a smooth and reliable performance. Manufactured in Torslanda, Sweden, it features dual front airbags and an automatic transmission. Known for its robust build and safety, this sedan is a testament to Volvo's engineering excellence.

Spec:

Engine Configuration

In-Line

Engine Manufacturer

Volvo

Engine Model

B6304S

Engine Number of Cylinders

Other Engine Info

w/o EGR, w/air pump, w/OBDII, w/elec. control evap., Motronic 4.4, w/RuLo

Problems:

Oil leaks

Common in older Volvo engines due to degraded gaskets and seals.

Timing belt wear

Regular maintenance needed to prevent belt failure, which can cause serious engine damage.

Coolant leaks

Often due to aging hoses, radiator, or water pump issues.

Vacuum leaks

Can lead to rough idling and poor engine performance.

Ignition coil issues

Can cause misfires and poor engine performance.

Maf sensor failure

A faulty Mass Air Flow sensor can cause issues with engine performance and fuel economy.

Fuel injector problems

Can lead to poor fuel delivery and engine misfires.

Crankshaft position sensor failure

Can cause starting problems and stalling.

Pcv system clogging

Can lead to oil leaks and increased engine pressure.

Exhaust manifold cracks

Can cause exhaust leaks and affect engine performance.

Electrical issues

Older wiring can lead to various electrical problems affecting engine control.