2001 Subaru Impreza Won't Start

Common Causes for Your 2001 Subaru Impreza Not Starting and How to Resolve Them

Find Repair Location
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 2001 Subaru Impreza 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 initial diagnostic steps to take when a 2001 Subaru Impreza won't start?

When your 2001 Subaru Impreza refuses to start, the first step is to check the battery, as a dead or weak battery is often the most common culprit. Inspect the battery for any visible signs of damage or corrosion on the terminals, which can impede electrical flow. If the battery appears intact, use a voltage meter to test its charge; a reading below 12.6 volts typically indicates a need for replacement or a recharge. Next, examine the battery cables for any fraying or corrosion that could disrupt the connection. If the battery and cables are in good condition, turn your attention to the alternator, as a malfunctioning alternator can prevent the battery from charging properly. Additionally, assess the starter motor, as issues here can prevent the engine from cranking. Fuel delivery is another critical factor; ensure that the fuel pump is operational and that there are no blockages in the fuel lines. Lastly, consider the possibility of rodent damage, as chewed wires can lead to electrical failures. By systematically following these diagnostic steps, you can effectively identify and address the starting issues with your Subaru Impreza.

How urgent is it to address the starting issue in a 2001 Subaru Impreza?

Addressing starting issues in a 2001 Subaru Impreza is not just a matter of convenience; it is a critical aspect of vehicle maintenance that demands immediate attention. Ignoring these problems can lead to more severe mechanical failures, which may compromise the vehicle's performance and reliability. Subaru vehicles are designed for longevity, but neglecting routine maintenance, such as timely oil changes and oil filter replacements, can accelerate wear and tear on essential components. This can result in costly repairs and even safety hazards on the road. Therefore, if you experience any starting difficulties, it is imperative to act swiftly to prevent further complications and ensure your vehicle remains in optimal condition. Prioritizing these repairs not only protects your investment but also enhances your driving experience.

What are the common problems that could cause a 2001 Subaru Impreza to not start?

When troubleshooting starting issues with a 2001 Subaru Impreza, it's crucial to consider several common problems that could be at play. A dead battery is often the first suspect, as it can prevent the engine from turning over if it lacks sufficient charge. If the battery is functioning, the next component to check is the alternator, which is responsible for charging the battery while the engine runs; a malfunctioning alternator can lead to a drained battery and starting difficulties. Additionally, the starter motor itself may be the culprit; if it is weak or has failed, it won't be able to engage the engine. Fuel delivery issues can also hinder starting; a faulty fuel pump or an empty tank can prevent the engine from receiving the necessary fuel. Other potential causes include rodent damage to wiring, problems within the ignition system such as worn spark plugs or a defective ignition coil, and issues with the crank and cam sensors that can disrupt the engine's timing. By systematically diagnosing these areas, you can effectively identify and resolve the starting problem with your Subaru Impreza.

You’ve got options with RepairPal

Whether you need a more accurate auto repair estimate or help finding a reputable shop in your area, we’ve got you covered.