2013 Subaru BRZ Won't Start

Common Causes for Your 2013 Subaru BRZ Not Starting and How to Resolve Them

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Reviewed by
Andrew Hajjar
Written by RepairPal Car Genius
Updated January 14, 2025
0%
38% chance it's the
Battery
0%
27% chance it's the
Alternator
0%
20% chance it's the
Starter
0%
15% chance it's
Something else
The most common reasons a 2013 Subaru BRZ won't start are a dead battery, an alternator problem, or failed starter.
  • Battery: A weak or failing battery can result in difficulty starting the engine and electrical system malfunctions.
  • Alternator: A failing alternator can result in insufficient electrical power, leading to battery drain and electrical system malfunctions.
  • Starter: A faulty starter motor or a weak battery can prevent the engine from cranking properly, leading to starting issues.
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.

What are the initial diagnostic steps to take for a 2013 Subaru BRZ that won't start?

When your 2013 Subaru BRZ refuses to start, the first step is to assess the battery and electrical system, as these are often the culprits behind starting issues. Begin by checking the battery's condition; a low or dead battery can easily prevent your vehicle from starting. Ensure that the battery connections are clean and secure, and measure the voltage to confirm it is within the acceptable range. Next, inspect the fuses and relays, particularly the starter and fuel relays, to rule out any blown fuses that could disrupt power flow. If the car cranks but fails to start, the problem may lie elsewhere, such as in the fuel system or ignition components. Verify that the fuel pump is operational and that the fuel filter is not clogged, as these can impede fuel delivery. Additionally, check the spark plugs and ignition coils for wear or damage, as these are essential for engine ignition. If the engine cranks without starting, consider performing a compression test to assess the health of the engine's cylinders. Lastly, if the check engine light is illuminated, using an OBD-II scanner can provide diagnostic trouble codes that offer insights into the underlying issue. By systematically following these steps, you can effectively narrow down the potential causes of your Subaru BRZ's starting problem and take appropriate action.

What are the common problems that could cause a 2013 Subaru BRZ to not start?

When troubleshooting starting issues in a 2013 Subaru BRZ, it's essential to consider several common problems that could be at play. One of the first areas to inspect is the battery, as the original batteries often fail within a few years, leading to weak performance or complete failure. Corrosion on battery terminals can also impede electrical flow, so cleaning these connections is a good initial step. For manual transmission models, ensure that the clutch safety switch is fully engaged; if the clutch isn't pressed all the way down, the vehicle won't start. Additionally, a weak or malfunctioning starter motor may allow the engine to crank without starting, indicating that replacement might be necessary. Ignition system issues, such as faulty coil packs or spark plugs, can prevent the engine from receiving the necessary spark, particularly since coil packs in the BRZ are known to overheat. Fuel-related problems, including an empty tank or a malfunctioning fuel pump, should also be checked, as they can easily lead to starting failures. Lastly, consider the camshaft position sensor, as its malfunction can cause rough idling or misfires, complicating the starting process. By systematically examining these components, DIYers can effectively diagnose and resolve the starting issues with their Subaru BRZ.

How urgent is it to address the starting issue in a 2013 Subaru BRZ?

Addressing starting issues in a 2013 Subaru BRZ is crucial, as neglecting these problems can lead to significant safety risks and costly repairs. A weak or dead battery is often the first culprit, and while jump-starting may provide a temporary fix, a malfunctioning alternator can leave you stranded if not resolved. Similarly, issues with the starter or solenoid can prevent the vehicle from starting altogether, making it essential to diagnose and repair these components promptly. Fuel and spark problems, such as a failing fuel pump or worn spark plugs, can escalate into severe engine damage if ignored, potentially affecting critical parts like the catalytic converter. Additionally, if the car's security system is malfunctioning, it can completely immobilize the vehicle, further emphasizing the need for immediate attention. By addressing these starting issues quickly, you not only ensure the reliability of your Subaru BRZ but also prevent further damage that could lead to more extensive and expensive repairs down the line. Therefore, taking the time to diagnose and fix these issues is vital for maintaining the health and functionality of your vehicle.

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