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2017 Ford Explorer Won't Start - Clicking Noise, Battery Light On

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David L. · rep 0 · May 22, 2:23 AM · 1 replies · solved · Question

Vehicle: 2017 Ford Explorer XLT

My 2017 Ford Explorer XLT, with the 3.5L V6, is completely dead this morning. When I try to start it, all I hear is a rapid clicking sound from under the hood, and the dashboard lights flicker. The battery light is also illuminated, even though I just had the battery tested a few months ago and it was fine.

I tried jumping it with another car, but it still just clicks. The headlights are dim, and the radio won't even turn on properly. Could this be more than just a dead battery? I'm stranded and need to figure out what's going on.

Any ideas on what might be causing this no-start condition? Is there a common electrical issue with these Explorers?

✓ Accepted solution

ClearTheCode Admin

ClearTheCode Team · rep 0 · May 22, 2:23 AM

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ClearTheCode admin answer: The symptoms you're describing for your 2017 Ford Explorer XLT – rapid clicking, dim lights, and a no-start condition, even after attempting a jump start – strongly suggest an issue with your vehicle's starting or charging system. While a dead battery is the most common culprit, the fact that a jump start didn't work points to other potential problems.

Possible Causes:

  • Severely Discharged Battery: Even if tested recently, a battery can fail suddenly, especially in extreme temperatures, or if there's a parasitic drain. If it's too low, a standard jump start might not provide enough power immediately.
  • Corroded or Loose Battery Terminals: Poor connection at the battery terminals can prevent proper current flow, leading to insufficient power for starting.
  • Faulty Starter Motor: The rapid clicking is often the starter solenoid engaging but not getting enough power to turn the engine, or the starter motor itself has failed.
  • Bad Alternator: If the alternator isn't charging the battery properly, the battery will eventually die, even if it's otherwise healthy. The battery light being on is a key indicator here.
  • Main Ground Cable Issue: A corroded or loose main ground cable can prevent the starter from getting adequate current.

Troubleshooting Steps:

  1. Inspect Battery Terminals: Visually check your battery terminals for corrosion (white or green powdery substance) and ensure they are tight. Clean them thoroughly if corroded.
  2. Test Battery Voltage: If you have a multimeter, check the battery voltage. A healthy battery should read around 12.6 volts. Anything significantly lower (e.g., below 10-11V) indicates a very discharged or failing battery.
  3. Attempt a Stronger Jump Start: If possible, try a jump start with a heavy-duty jumper cable set and let the donor vehicle run for 5-10 minutes before attempting to start your Explorer. This allows more charge to transfer.
  4. Tap the Starter (Carefully): If you can safely access the starter motor, sometimes a few light taps with a hammer (while someone tries to start the car) can temporarily free a stuck solenoid. This is a temporary fix for diagnosis only.

When to See a Shop: If cleaning terminals and a robust jump start don't resolve the issue, or if you suspect a faulty starter or alternator, it's time to call for a tow to a mechanic. They can perform comprehensive tests on the battery, alternator, and starter to accurately diagnose the problem. Driving with a failing alternator can leave you stranded again, and a bad starter will prevent your vehicle from starting reliably.

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