why does my Ford Explorer Fifth Generation (2011-2019) battery keep dying?

Ford Explorer Fifth Generation (2011-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

554 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 repair instructions.

Affected Component

Electrical

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical systems to avoid shocks or shorts.
•Allow the engine to cool before working on any components near it.

Symptoms

•Check engine light illuminated
•Battery warning light on the dashboard
•Difficulty starting the engine
•Electrical accessories malfunctioning (e.g., radio, lights)
•Battery corrosion present at terminals
•Battery is less than 3 years old

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to check for any underlying electrical issues.
2
Measure the battery voltage with a multimeter to determine if it is holding a charge (should be around 12.6 volts when fully charged).
3
Inspect the battery terminals for corrosion and ensure they are tightly connected.
4
Check for parasitic draw by disconnecting the negative battery terminal and measuring current draw with a multimeter in series.
5
Test the alternator output to ensure it is charging the battery properly (should be around 13.8 to 14.4 volts when the engine is running).
6
Inspect fuses and relays related to battery management and charging circuits for any failures.

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

•OBD-II scanner
•Multimeter
•Wire brush
•Battery charger
•Socket set

Parts Required

•New battery (if needed)
•Alternator (if faulty)
•Battery terminal protector

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Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to check for any underlying electrical issues.
2
Measure the battery voltage with a multimeter to determine if it is holding a charge (should be around 12.6 volts when fully charged).
3
Inspect the battery terminals for corrosion and ensure they are tightly connected.
4
Check for parasitic draw by disconnecting the negative battery terminal and measuring current draw with a multimeter in series.
5
Test the alternator output to ensure it is charging the battery properly (should be around 13.8 to 14.4 volts when the engine is running).
6
Inspect fuses and relays related to battery management and charging circuits for any failures.

Solution

1. Preparation

Gather tools and parts required.
Disconnect the negative battery terminal to ensure safety before beginning any repairs.

2. Clean Battery Terminals

Use a wire brush to clean any corrosion from the battery terminals and connectors.
Apply a thin layer of petroleum jelly or terminal protector to inhibit future corrosion.
Reconnect the terminals securely.

3. Test and Replace Battery (if needed)

If the battery voltage is below 12.4 volts, charge it using a battery charger.
If the battery does not hold a charge after charging, replace it with a new, compatible battery.
Ensure to use a battery rated for the vehicle (Group Size 65 or as specified by manufacturer).

4. Repair Parasitic Draw (if necessary)

Identify and disconnect any accessories or aftermarket installations causing excessive draw.
Repair or replace any faulty wiring or components that may be causing the parasitic draw.

5. Alternator Inspection

If the alternator is not charging properly, remove the alternator and test it using a bench tester or replace it if defective.
Ensure all connections to the alternator are secure and free of corrosion.

Tools Required:

OBD-II scanner
Multimeter
Wire brush
Battery charger
Socket set

Parts Required:

New battery (if needed)
Alternator (if faulty)
Battery terminal protector

Estimated Repair Time: 2-4 hours

Safety Warnings:

Disconnect the battery before working on electrical systems to avoid shocks or shorts.
Allow the engine to cool before working on any components near it.