why does my Ford Explorer Fifth Generation (2011-2019) battery die when I try to start it?

Ford Explorer Fifth Generation (2011-2019)

Error Codes

1-2 hours

Time

medium

Difficulty

high

Severity

3 min read

573 words

⚠️ Safety Warning

This issue requires immediate attention. If you are not experienced with automotive repairs, consult a professional mechanic. Working on critical systems can be dangerous.

Problem Statement

Learn how to diagnose and fix battery issues in Ford Explorer Fifth Generation (2011-2019). Step-by-step guide with symptoms, diagnostic steps, and solutions.

Affected Component

Electrical

Estimated Time

1-2 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical systems to prevent shocks.

Symptoms

•Engine does not crank when the ignition is turned
•Clicking sound heard when attempting to start
•Dashboard lights dim or do not illuminate
•Battery warning light illuminated
•Electrical accessories function intermittently or are unresponsive
•Battery terminals are corroded or loose

Diagnostic Steps

1
Check battery voltage using a multimeter; a healthy battery should read around 12.6 volts or higher.
2
Inspect battery terminals for corrosion or looseness; clean or tighten as necessary.
3
Test the battery with a load tester to determine its ability to hold a charge under load.
4
Inspect the starter motor connections for damage or looseness.
5
Check the fuses related to the starting system for any blown fuses.
6
Use an OBD-II scanner to check for any fault codes related to the battery or starter system.

Solution

💡 Expert Tip

For complex repairs like this, consider taking photos at each step. This helps if you need to reverse a step or consult with a mechanic. Also, keep all removed parts organized - you may need to reference them during reassembly.

Verification

After completing the repair, verify that the issue has been resolved:

✓Test the affected component to ensure it functions correctly
✓Check for any error codes or warning lights
✓Monitor the vehicle for a few days to ensure the issue does not recur

Prevention Tips

To prevent this issue from occurring again:

•Follow the manufacturer's recommended maintenance schedule
•Address warning signs early before they develop into major issues
•Use quality parts and fluids recommended for your vehicle
•Keep detailed records of all repairs and maintenance

Tools & Equipment Required

•Multimeter
•Battery terminal cleaner
•Socket set
•Load tester
•OBD-II scanner

Parts Required

•New battery (if replacement is necessary)
•Starter motor (if replacement is necessary)

Related Faults

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Diagnostic Steps

1
Check battery voltage using a multimeter; a healthy battery should read around 12.6 volts or higher.
2
Inspect battery terminals for corrosion or looseness; clean or tighten as necessary.
3
Test the battery with a load tester to determine its ability to hold a charge under load.
4
Inspect the starter motor connections for damage or looseness.
5
Check the fuses related to the starting system for any blown fuses.
6
Use an OBD-II scanner to check for any fault codes related to the battery or starter system.

Solution

1. Preparation

Gather tools: multimeter, battery terminal cleaner, socket set, load tester, OBD-II scanner.
Ensure the vehicle is in park (or neutral) with the parking brake engaged.
Disconnect the negative battery terminal to avoid any electrical shorts.

2. Battery Inspection and Replacement

Check Battery Health
- Reconnect the multimeter to the battery terminals and verify voltage.
- If the voltage is below 12.4 volts, proceed with load testing.
Load Test the Battery
- Connect the load tester to the battery and follow the manufacturer's instructions.
- If the battery fails to maintain voltage under load, replace the battery.
- If the battery passes, reconnect and ensure terminals are tight.
Replace Battery (if necessary)
- Disconnect the positive terminal first, then remove the negative terminal.
- Remove any bracket or hold-downs securing the battery.
- Lift the old battery out and place the new battery in the tray.
- Reinstall the hold-downs and connect the positive terminal first, followed by the negative.

3. Starter Motor Inspection

Check Starter Connections
- Locate the starter motor; typically found near the engine block.
- Inspect the connections to the starter for corrosion or looseness.
- Tighten any loose connections or replace damaged wiring.
Test Starter Functionality
- If the connections are secure but the vehicle still fails to start, consider testing the starter with a multimeter.
- If the starter is faulty, remove it and replace it with a new unit.