Most Common Car Issues

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Dynamic Brake Support (DBS)

Engine Brake (hp) From

Engine Model

Make

Model Year

MOST COMMON PROBLEMS

SUBARU Forester 2014

The 2014 Subaru Forester is a versatile Sport Utility Vehicle (SUV) equipped with a 2.5L turbocharged engine and all-wheel drive. It features advanced safety systems, including multiple airbag locations and a Tire Pressure Monitoring System (TPMS). This model comes with a Continuously Variable Transmission (CVT) and offers a high level of trim with options like EyeSight, NAVI, and Harman/Kardon audio. Manufactured in Gunma, Japan, the Forester is designed for both performance and safety.

Spec:

Engine Model

2.5Turbo U4

Engine Number of Cylinders

Problems:

Oil consumption

The 2014 Subaru Forester with the 2.5Turbo U4 engine is known for higher than average oil consumption, which can lead to engine damage if not monitored and maintained properly.

Timing chain tensioner failure

This engine model can experience issues with the timing chain tensioner, which may cause a rattling noise and eventually lead to more severe engine damage if not addressed.

Head gasket failure

Although Subaru has improved this over the years, head gasket failure remains a common problem, leading to oil leaks, coolant leaks, and potential engine overheating.

Turbocharger issues

The turbocharger on this engine can suffer from oil leaks and bearing wear, leading to decreased performance and potential engine damage.

Coolant leaks

The 2.5Turbo U4 engine can develop coolant leaks, especially around the water pump and radiator, which can cause overheating if not properly managed.

Spark plug and ignition coil problems

Misfires and poor engine performance can be caused by faulty spark plugs and ignition coils, which are common issues in this engine model.

Exhaust gas recirculation (egr) valve clogging

The EGR valve can become clogged with carbon deposits, leading to poor engine performance and increased emissions.

SUBARU Forester 2017

The 2017 Subaru Forester Touring +H/K is a versatile all-wheel-drive MPV with a 2.0L turbocharged engine producing 250 hp. It seats five, features standard safety systems like Dynamic Brake Support (DBS) and a backup camera, and offers optional advanced features such as Lane Departure Warning (LDW) and Adaptive Cruise Control (ACC). Priced at $34,295, it combines performance with comprehensive safety.

Spec:

Dynamic Brake Support (DBS)

Standard

Engine Brake (hp) From

250

Engine Model

Engine Number of Cylinders

Problems:

Dynamic brake support (dbs) malfunction

The system may fail to activate appropriately during emergency braking, potentially due to sensor issues or software glitches.

Excessive engine braking

The engine braking might be too aggressive, leading to a jerky driving experience, possibly due to incorrect engine tuning or transmission issues.

Engine misfire

Common in 4-cylinder engines like the U4, misfires can occur due to faulty spark plugs, ignition coils, or fuel injectors.

Oil consumption

The 2017 Subaru Forester may experience high oil consumption, which can be caused by issues with the piston rings or valve seals.

Timing chain problems

The U4 engine might have issues with the timing chain, such as stretching or tensioner failure, leading to poor engine performance.

Coolant leaks

Potential leaks in the cooling system, which can lead to overheating and engine damage, often due to faulty hoses or a failing water pump.

Head gasket failure

Common in Subaru engines, this issue can cause coolant and oil to mix, leading to severe engine damage if not addressed promptly.

Turbocharger issues (if applicable)

If the model includes a turbocharger, problems such as turbo lag or failure can occur, often due to oil supply issues or excessive heat.