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Why does my car click but not start?


Few things are as frustrating as turning the key in your car's ignition (or pressing the start button) only to hear a clicking sound and nothing else. This issue is a common one, and it can leave you stranded if not addressed promptly. At Kevin's Autos, with years of experience in car maintenance and repair, we’ve seen this problem countless times. Let’s dive into the possible causes and what you can do about it.


Common Causes of a Clicking Sound When Your Car Won’t Start


When your car clicks but doesn’t start, it’s usually a sign that something in the starting system isn’t functioning properly. Here are the most common culprits:



  • Dead or Weak Battery: The most frequent cause of this issue is a dead or weak battery. If the battery doesn’t have enough power, it won’t be able to turn the starter motor, resulting in a clicking sound.

  • Faulty Starter Motor: The starter motor is responsible for cranking the engine. If it’s damaged or worn out, it may produce a clicking noise without engaging the engine.

  • Loose or Corroded Battery Connections: Corrosion or loose connections at the battery terminals can prevent the electrical current from flowing properly, leading to a clicking sound.

  • Bad Alternator: If the alternator isn’t charging the battery properly, the battery may not have enough power to start the car, even if it was recently charged.

  • Faulty Solenoid: The solenoid is a small component that helps transmit electrical current to the starter motor. If it’s defective, it can cause the clicking sound you hear.


Steps to Diagnose and Fix the Problem


If your car is clicking but not starting, here’s what you can do to troubleshoot the issue:



  • Check the Battery: Inspect the battery for visible signs of damage or corrosion. If you have a multimeter, test the voltage. A healthy battery should read around 12.6 volts when the car is off.

  • Clean the Battery Terminals: If you notice corrosion, clean the terminals with a wire brush and reconnect them securely.

  • Jump-Start the Car: Use jumper cables and a second vehicle to jump-start your car. If it starts, the battery may need to be replaced or the alternator checked.

  • Listen for the Starter Motor: If the battery is fine but the car still clicks, the starter motor or solenoid may be the issue. These components will likely need professional repair or replacement.

  • Inspect the Alternator: If the battery keeps dying, the alternator may not be charging it properly. A mechanic can test the alternator to confirm.


When to Call a Professional


While some of these steps can be done at home, certain issues—like a faulty starter motor or alternator—require professional expertise. At Kevin's Autos, we specialize in diagnosing and repairing starting system problems. If you’re in the Mountain View, CA area, give us a call at (650) 965-7112 to schedule an appointment. We’ll get you back on the road in no time!


Preventing Future Starting Issues


To avoid being stranded in the future, consider these preventive measures:



  • Regularly inspect and clean your battery terminals.

  • Replace your car battery every 3-5 years or as recommended by the manufacturer.

  • Have your alternator and starter motor checked during routine maintenance.

  • Pay attention to warning signs like dimming headlights or slow cranking when starting the car.


At Kevin's Autos, we’re here to help with all your car maintenance and repair needs. Don’t hesitate to reach out if you’re experiencing starting issues or any other car troubles. Your car deserves the best care, and we’re here to provide it!


Frequently Asked Questions

Why wont my car jump start just clicks?


A single click may point to a faulty starter or starter relay, requiring professional inspection if a jumpstart doesn't work. Corroded or loose battery terminals can prevent proper power flow, causing starting issues. Cleaning and tightening the terminals might resolve this.



Why does my starter relay click once but no crank?


Faulty Starter: The starter motor itself may be faulty. If the solenoid clicks but the starter doesn't turn, the starter could be seized or have internal issues. Bad Solenoid: The solenoid might be malfunctioning, even if it clicks. If it's not engaging fully, it won't send enough power to the starter.



What does it mean when your car won't start but everything comes on?


If your car won't start but the lights come on, it is likely not an issue with your battery so it's time to turn your attention to your ignition switch. A failed ignition switch won't be able to supply power to the starter motor, ignition system, and other engine controls, preventing the engine from starting.



When I turn the key, it just clicks once.?


Do you hear a clicking noise when you turn the key in your car's ignition? If so, it could be an indication of a more serious problem. This clicking noise is usually caused by one of five things: a dead battery, loose wiring, faulty starter motor, faulty ignition switch or corroded battery terminals.



How to tell if a starter or solenoid is bad?


Several symptoms can indicate a faulty starter solenoid. These include: Clicking sound: A single click or repeated clicking noise when turning the ignition key suggests a bad solenoid. No response: If there's no sound or movement when you turn the key, the solenoid might not be engaging at all.



Why won't my car start but I have power?


A low battery is the most frequent cause of a car having power but not turning over. Other causes include a bad starter, a bad alternator, or electrical issues. If you hear clicking, whirring, or nothing at all when trying to start your car, you may have a bad starter, malfunctioning alternator, or low battery.



What does it mean when you try to start your car and it doesn t click?


Either your battery is too weak to crank the starter, you have a bad starter, or the engine is seized. But most likely your battery just needs a charge or to be replaced.



Will a bad starter still click?


One of the symptoms of a bad starter is a clicking noise when you turn the key or push the start button. However, a starter can die without making any sound at all, or it may announce its impending death with whirring and grinding noise—so listen up!



How do you tell if it's your battery or alternator?


Here are a few ways to tell if your alternator is bad: One of the most obvious signs is if the car dies after a jump start. The alternator should provide enough current to keep the vehicle running even with a bad battery. If it doesn't, then your alternator needs to be examined.



What to do if your car clicks but won't start?


One quick test you could try is gently tapping the starter with a wrench while someone else turns the key. Sometimes, this can help a stuck starter motor engage, at least temporarily. If this works, it's a good sign the starter may need replacement.


Kevin's Auto

Kevin Bennett

Company Owner

Kevin Bennet is the founder and owner of Kevin's Autos, a leading automotive service provider in Australia. With a deep commitment to customer satisfaction and years of industry expertise, Kevin uses his blog to answer the most common questions posed by his customers. From maintenance tips to troubleshooting advice, Kevin's articles are designed to empower drivers with the knowledge they need to keep their vehicles running smoothly and safely.