2000 Subaru Forester Won't Start

Common Causes for Your 2000 Subaru Forester 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 2000 Subaru Forester 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 due to insufficient power supply.
  • Alternator: A failing alternator can result in insufficient electrical power to the vehicle, 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 common problems that could cause a 2000 Subaru Forester to not start?

When troubleshooting starting issues with a 2000 Subaru Forester, it's essential to consider several common problems that could be at play. A dead or weak battery is often the first suspect, as it can prevent the engine from cranking altogether. If the battery is functioning but the engine still struggles to start, the starter motor may be weak, failing to generate the necessary power. Fuel delivery issues can also be a significant factor; a clogged fuel filter or a malfunctioning fuel pump can restrict fuel flow, making it impossible for the engine to ignite. Additionally, electrical problems, such as a faulty alternator or issues with the main relay, can disrupt the starting process. Lastly, the ignition system should not be overlooked; faulty spark plugs, ignition coils, or a malfunctioning crankshaft sensor can hinder the ignition process. To accurately diagnose the issue, it may be beneficial to consult a professional for a diagnostic test, ensuring that the root cause is identified and addressed effectively.

How urgent is it to diagnose and fix the starting issue in a 2000 Subaru Forester that won't start?

When your 2000 Subaru Forester refuses to start, the urgency to diagnose and fix the issue cannot be overstated. Ignoring this problem can lead to being stranded in an unsafe location, which poses significant risks to your safety and well-being. Additionally, a starting issue may indicate underlying problems that, if left unaddressed, could escalate into more severe damage, resulting in costly repairs that could have been avoided with prompt attention. Furthermore, some starting issues may be symptomatic of critical safety concerns that need immediate resolution to ensure the vehicle operates safely. Therefore, it is essential to act quickly, utilizing basic troubleshooting methods to identify the root cause of the problem. If these methods do not yield results, seeking professional assistance is advisable to ensure a thorough diagnosis and effective repairs, ultimately getting your Subaru Forester back on the road safely and efficiently.

What are the initial diagnostic steps to take when a 2000 Subaru Forester won't start?

When your 2000 Subaru Forester refuses to start, the first step in your DIY diagnostic approach should be to check the battery. A weak or dead battery is often the culprit, so ensure it has a sufficient charge and that the connections are clean and secure. Next, inspect the alternator, as it is responsible for charging the battery while the engine runs; a malfunctioning alternator can lead to starting issues. Following this, examine the starter to confirm it is operational, since a faulty starter can prevent the engine from turning over. Additionally, verify that there is enough fuel in the tank, as low fuel levels can easily cause starting problems. It’s also important to check the ignition coil for any signs of damage, as a defective coil can disrupt the ignition process. Assess the ignition system components, including spark plugs and ignition wires, to ensure they are functioning properly. Lastly, don’t overlook the fuses related to critical systems like the fuel pump and ignition; a blown fuse can halt the starting process. If these steps do not resolve the issue, it may be wise to consult a professional mechanic who can provide a more thorough diagnosis. By following this structured approach, you can effectively troubleshoot the starting issue with your Subaru Forester.

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