how to troubleshoot Ford Explorer Fifth Generation (2011-2019) battery issues

Ford Explorer Fifth Generation (2011-2019)

Error Codes

1-2 hours

Time

medium

Difficulty

high

Severity

3 min read

545 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 troubleshoot battery issues in Ford Explorer (2011-2019). Step-by-step guide with diagnostic steps and repair instructions.

Affected Component

Electrical

Estimated Time

1-2 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical systems.
•Wear safety goggles and gloves to protect against battery acid and electrical shock.

Symptoms

•Engine cranks slowly or not at all
•Dashboard warning lights illuminated
•Headlights dim or flicker
•Electrical accessories (radio, windows) operate slowly
•Battery odor or swelling
•Corrosion on battery terminals

Diagnostic Steps

1
Check Battery Voltage: Use a multimeter to measure the battery voltage. A healthy battery should read around 12.6 volts or more.
2
Inspect Battery Connections: Visually inspect battery terminals for corrosion or loose connections.
3
Test Battery Load: Use a battery load tester to check if the battery can maintain voltage under load.
4
Examine Alternator Output: Start the engine and measure the voltage at the battery terminals; it should be between 13.7 to 14.7 volts when the engine is running.
5
Check for Parasitic Draw: With the vehicle off, use a multimeter to measure current draw on the battery; it should be below 50 mA.
6
Inspect Fuses: Check relevant fuses related to battery and electrical systems for any blown fuses.

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 load tester
•Socket set
•Wire brush
•Safety goggles
•Gloves

Parts Required

•New battery (if necessary)
•New alternator (if necessary)

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Diagnostic Steps

1
Check Battery Voltage: Use a multimeter to measure the battery voltage. A healthy battery should read around 12.6 volts or more.
2
Inspect Battery Connections: Visually inspect battery terminals for corrosion or loose connections.
3
Test Battery Load: Use a battery load tester to check if the battery can maintain voltage under load.
4
Examine Alternator Output: Start the engine and measure the voltage at the battery terminals; it should be between 13.7 to 14.7 volts when the engine is running.
5
Check for Parasitic Draw: With the vehicle off, use a multimeter to measure current draw on the battery; it should be below 50 mA.
6
Inspect Fuses: Check relevant fuses related to battery and electrical systems for any blown fuses.

Solution

1. Preparation

Tools Required: Multimeter, battery load tester, socket set, wire brush, safety goggles, gloves.
Ensure the vehicle is parked on a flat surface, and turn off the engine.

2. Clean Battery Terminals

Disconnect the negative (-) terminal first, followed by the positive (+) terminal.
Use a wire brush to clean any corrosion from the battery terminals and posts.
Reconnect the positive (+) terminal first, then the negative (-) terminal.

3. Replace Battery (if necessary)

If the battery fails the load test or is below 12.4 volts, replace it.
Remove the battery hold-down bracket using a socket set.
Carefully lift out the old battery (ensure proper lifting technique).
Place the new battery in the tray, securing it with the hold-down bracket.
Connect the positive (+) terminal first, then the negative (-) terminal.

4. Test the Alternator

With the engine running, measure the voltage at the battery terminals again.
If the voltage is not within 13.7 to 14.7 volts, consider replacing the alternator.

5. Address Parasitic Draw

If excessive current draw is detected, remove fuses one at a time to identify the source of the draw.
Once identified, repair or replace the faulty component causing the draw.