1998 Subaru Legacy Won't Start

Common Causes for Your 1998 Subaru Legacy Not Starting and How to Resolve Them

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Reviewed by
Bo Fader
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 1998 Subaru Legacy 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 1998 Subaru Legacy that won't start?

When faced with a 1998 Subaru Legacy that won't start, it's essential to adopt a systematic diagnostic approach. Begin by checking the battery, as a weak or dead battery is a common culprit. Ensure the battery is fully charged and that the terminals are clean and securely connected. Next, verify the electrical connections by inspecting the fuses in both the dashboard and engine compartment; a blown fuse can disrupt the starting process. Pay attention to the starter's behavior when you turn the key; a clicking sound may indicate a starter issue, while silence could point to a more significant electrical problem. Observing the dashboard lights can also provide clues; if they illuminate normally, the electrical system is likely functioning to some extent. Use a multimeter to test the battery voltage, ensuring it reads around 12.6 volts for a fully charged battery. If the starter clicks but the engine doesn’t turn over, inspect the starter motor and its connections, and consider gently tapping the starter as a temporary measure. Lastly, check for any mechanical issues by attempting to rotate the engine manually, and look for vacuum hose leaks that could affect engine performance. By following these steps, you can effectively diagnose the starting issue and take appropriate action to resolve it.

What are the common problems that could cause a 1998 Subaru Legacy to not start?

When your 1998 Subaru Legacy cranks but fails to start, it can be frustrating, but understanding the common problems can help you troubleshoot effectively. Start by examining the fuel system, as issues like a faulty fuel pump or low fuel pressure are frequent culprits. Ensure that the fuel pump is operational and that you’re using the correct fuel type. Next, check the ignition system; damaged spark plugs or faulty ignition components can disrupt the spark needed for combustion. Additionally, inspect the battery and electrical connections, as corrosion or a drained battery can hinder the starting process. If the starter motor is weak, it may not provide enough power to turn the engine over, necessitating a replacement. Lastly, consider the ignition switch and other mechanical components, such as the timing belt or sensors, which could also contribute to starting issues. By systematically checking these areas, you can identify the root cause and take the necessary steps to get your Subaru back on the road.

How urgent is it to address the starting issue in a 1998 Subaru Legacy?

Addressing the starting issue in a 1998 Subaru Legacy is of utmost urgency due to several critical factors. First and foremost, a car that fails to start reliably poses significant safety risks, particularly in adverse weather conditions or remote locations where help may not be readily available. Additionally, delaying repairs can lead to further damage to essential components such as the starter, battery, and alternator. Each unsuccessful attempt to start the vehicle can exacerbate existing problems, putting undue stress on the electrical system and potentially leading to costly repairs down the line. Moreover, the longer the issue persists, the more complex the diagnosis may become, as repeated attempts can mask the original problem and introduce new symptoms. Therefore, it is crucial for DIY enthusiasts to act swiftly by checking the battery, attempting a jump start, and inspecting the starter and solenoid. By addressing these issues promptly, you can ensure not only your safety but also the longevity and reliability of your vehicle.

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1998 Subaru Legacy Won't Start: Causes & Solutions