Car Won't Start: Diagnosing the Issue and Deciding Between a Jump Start and Towing Troubleshooting & Fixes (2024 Guide)

    Car won't start and you're stuck? A veteran tech explains if it's the battery, starter, or something else. Learn when to jump-start and when to call for a tow.

    DIY Fix: $5–$20
    Pro Help: $150–$500
    Time: 15–120 min

    Quick Answer

    Okay so here's the quick version. Your car won't start, and nine times out of ten, it's just a dead battery. You hear a rapid clicking sound when you turn the key? That's your battery screaming for a jump. If you hear one single click or a grinding noise, it's probably something worse, like the starter. A jump-start might get you going if it's the battery, but if that fails, or if you see smoke or smell something weird, don't mess around. Just call for a tow. Better to pay for a tow than to risk causing more severe damage, a fire, or a much costlier repair.

    Car Won't Start: Diagnosing the Issue and Deciding Between a Jump Start and Towing Troubleshooting & Fixes (2024 Guide) visual diagram
    Visual guide for diagnosing key fob issues

    Common Symptoms

    Engine does not crank or turn over
    Clicking noise when turning the key
    Dashboard lights work, but the engine won't start
    No power at all (no lights, no sounds)
    Strange noises, smoke, or overheating

    Possible Causes

    Dead or drained battery (e.g., lights left on, car unused for a while)
    Faulty starter motor
    Fuel system problems
    Alternator failure (not charging the battery)
    Engine or transmission mechanical issues
    Damaged or corroded battery terminals
    Electrical system issues (e.g., bad ignition switch, blown fuse)

    Step-by-Step Diagnosis

    1

    Step 1

    Stay calm and assess the situation.

    2

    Step 2

    Check for dashboard lights and accessory power (radio, headlights).

    3

    Step 3

    Listen for sounds when turning the key (e.g., clicking, grinding, or no sound at all).

    4

    Step 4

    Inspect the battery for visible issues (leaks, swelling, or corrosion on terminals).

    Pro tip: Note the battery orientation before removing it. Most CR2032 batteries have + facing up.
    5

    Step 5

    Ensure the car is in Park or Neutral (for automatic transmission) or clutch is pressed (for manual transmission).

    6

    Step 6

    Attempt a jump-start if a drained battery is suspected and no other obvious issues are present.

    Pro tip: Note the battery orientation before removing it. Most CR2032 batteries have + facing up.
    Car Won't Start: Diagnosing the Issue and Deciding Between a Jump Start and Towing Troubleshooting & Fixes (2024 Guide)
    Key fob troubleshooting and repair overview

    DIY vs Professional Costs

    Jump-starting the car
    DIY$0-50
    Pro$50-100
    Time15 minutes
    Cleaning Battery Terminals
    Most Common
    DIY$5-10
    Pro$20-40
    Time20 minutes
    Replacing a Car Battery
    Most Common
    DIY$100-250
    Pro$200-350
    Time30-60 minutes
    Local Tow to a Shop
    DIYN/A
    Pro$100-250+
    Time1-2 hours
    Replacing a Starter Motor
    DIY$150-300
    Pro$400-800
    Time2-4 hours

    When to Call a Professional Towing

    • A jump-start fails after multiple attempts.
    • Engine or transmission problems are suspected (e.g., strange grinding noises, smoke, or overheating).
    • Visible fluid leaks or other safety concerns are present.
    • The car has been in an accident or has structural damage.
    • You are stranded, far from home, or in an unsafe location.
    • You are uncomfortable performing DIY diagnostics or repairs.
    • You suspect issues beyond a simple dead battery (e.g., faulty starter, fuel system problem).

    Prevention Tips

    • Regularly check battery health and terminals for corrosion.
    • Ensure all lights and accessories are turned off when leaving the car.
    • Drive your car regularly to keep the battery charged, especially in extreme weather.
    • Adhere to the manufacturer's recommended service schedule for overall vehicle health.
    • Consider replacing batteries every 3-5 years, depending on climate and usage.
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    Professional key fob repair and programming

    Frequently Asked Questions

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