2017 Subaru WRX Engine Is Stalling

Common Causes of Engine Stalling in Your 2017 Subaru WRX and How to Resolve Them

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Reviewed by
Aisha
Written by RepairPal Car Genius
Updated January 14, 2025
0%
30% chance it's the
Fuel System
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15% chance it's the
Air Intake System
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55% chance it's
Something else
The most common reasons a 2017 Subaru WRX engine is stalling are the fuel system, the air intake system, or the ignition system.
  • Fuel System: A clogged fuel filter or failing fuel pump can restrict fuel flow, resulting in poor engine performance and starting issues.
  • Air Intake System: A dirty or damaged air filter or a malfunctioning mass airflow sensor can restrict airflow, leading to reduced engine performance and efficiency.
Proper diagnosis will determine the exact cause of your symptom, saving you money on unnecessary repairs. The diagnostic experts at RepairPal Certified shops have the right tools and experience to solve any symptom.

How much does it cost to fix a 2017 Subaru WRX engine is stalling?

Common Repairs

The total repair cost will vary based on the condition of your vehicle and the number of repairs needed to fix your symptom. Proper diagnosis will save you money by finding the exact repairs needed to fix your car right the first time.

Any time there is an emissions fault the check engine light will be displayed. The purpose of the check engine light is to inform the driver that an emission related fault has been found, and that there are on-board diagnostic (OBD) trouble codes stored in the powertrain or engine control module. Additionally, since the emissions systems are so intertwined into engine control and transmission control systems, symptoms may include nearly any sort of drivability concerns. This may include harsh shifting, failure to shift, hesitation on acceleration, jerking, engine failure to start or run, loss of power, or any number of other drivability issues.

When the Check Engine Light comes on, you may experience engine performance issues such as poor acceleration, rough idling, or an engine that won't start. In some cases, no abnormal symptoms will be experienced. Other systems like the transmission or ABS can cause the Check Engine Light to illuminate and lights for those systems can come on at the same time. Similar lights may say "Check Engine Soon", "Malfunction Indicator Light" or just "Check". In rare case the engine can overheat.

What are the initial diagnostic steps to take for a stalling engine in a 2017 Subaru WRX?

When faced with a stalling engine in your 2017 Subaru WRX, it's essential to adopt a systematic diagnostic approach to identify the root cause effectively. Start by checking the fuel system; ensure that your fuel tank has enough gas and inspect the fuel pump and filter for any blockages or malfunctions that could hinder fuel delivery. Next, turn your attention to the air intake system, where a clogged air filter or damaged intake manifold can restrict airflow and impact engine performance. The ignition system is another critical area to examine; worn or fouled spark plugs and faulty ignition coils can lead to misfires, resulting in stalling. Utilizing an OBD-II scanner to check for error codes can provide valuable insights into any underlying issues that may not be immediately visible. Additionally, inspect for vacuum leaks in the hoses and lines, as these can significantly affect engine operation. Lastly, ensure that your battery is in good condition, as a weak battery can also contribute to stalling problems. By following these steps, you can effectively narrow down the potential causes and take the necessary actions to resolve the stalling issue in your WRX.

What are the common causes of engine stalling in a 2017 Subaru WRX?

When diagnosing engine stalling issues in a 2017 Subaru WRX, it's essential to consider several common problems that could be at play. One of the primary culprits is the fuel system; a clogged fuel filter or a malfunctioning fuel pump can disrupt the flow of fuel, leading to stalling. Additionally, the ignition system plays a critical role; failing components such as ignition coils or worn spark plugs can prevent the engine from firing properly. Airflow issues, often caused by a dirty air filter or a faulty mass airflow sensor, can also hinder engine performance and result in stalling. Overheating is another significant factor; if the engine overheats due to a malfunctioning cooling system or insufficient coolant, it can lead to stalling as a protective measure. Lastly, electrical system faults, including a weak battery or a failing alternator, can disrupt the engine's operation. By understanding these potential issues, DIY enthusiasts can take proactive steps to troubleshoot and resolve engine stalling in their Subaru WRX, ensuring a smoother and more reliable driving experience.

How urgent is it to address the engine stalling issue in a 2017 Subaru WRX?

When it comes to a 2017 Subaru WRX experiencing engine stalling, the urgency of addressing this issue cannot be overstated. Engine stalling poses significant safety risks, especially if it occurs while driving in high-traffic situations or at elevated speeds, where the potential for accidents increases dramatically. Moreover, neglecting this problem can lead to more severe damage to critical components, resulting in costly repairs that could have been avoided with timely intervention. Stalling can be indicative of various underlying issues, such as fuel system malfunctions, ignition failures, or sensor problems, making it essential to diagnose and resolve the root cause to maintain the vehicle's overall health and performance. For DIY enthusiasts, recognizing the importance of regular maintenance and being proactive about unusual symptoms is key to prolonging the lifespan of the vehicle. Therefore, addressing engine stalling issues promptly is not just a matter of convenience; it is a crucial aspect of responsible vehicle ownership that ensures safety and optimal performance on the road.

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2017 Subaru WRX Engine Stalling: Causes & Solutions