what should I do if my Ford F-150 13th Generation (2015-2020) battery dies frequently?

Ford F-150 13th Generation (2015-2020)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

540 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 frequent battery failures in Ford F-150 13th Generation (2015-2020). Step-by-step guide with diagnostic procedures and repair instructions.

Affected Component

Electrical

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect battery before working on electrical systems.
•Allow engine to cool before working on components.

Symptoms

•Check engine light illuminated
•Battery warning light on the dashboard
•Difficulty starting the engine
•Electrical components (e.g., lights, radio) functioning intermittently
•Battery drains quickly after short periods of inactivity
•Corrosion present on battery terminals

Diagnostic Steps

1
Scan the vehicle's OBD-II system for error codes using an OBD-II scanner.
2
Inspect the battery connections for tightness and signs of corrosion.
3
Test the battery voltage with a multimeter to check for proper charge levels.
4
Check the alternator output while the engine is running to ensure it is charging the battery.
5
Inspect for parasitic draws by testing current draw when the vehicle is off.
6
Examine all fuses and relays related to the charging system for faults.

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
•Wrench set
•Battery terminal cleaner
•Socket set

Parts Required

•New battery (if needed)
•New alternator (if needed)

Related Faults

Share this solution

Comments

No comments yet

Be the first to share your thoughts

Back to Generation

Diagnostic Steps

1
Scan the vehicle's OBD-II system for error codes using an OBD-II scanner.
2
Inspect the battery connections for tightness and signs of corrosion.
3
Test the battery voltage with a multimeter to check for proper charge levels.
4
Check the alternator output while the engine is running to ensure it is charging the battery.
5
Inspect for parasitic draws by testing current draw when the vehicle is off.
6
Examine all fuses and relays related to the charging system for faults.

Solution

1. Preparation

Gather necessary tools and safety equipment.
Disconnect the negative battery terminal to ensure safety while working on the electrical system.

2. Battery Inspection and Replacement

Tools Needed: Wrench set, battery terminal cleaner, new battery (if required)
Inspect the battery for physical damage (cracks, leaks).
Clean terminals with a battery terminal cleaner to remove corrosion.
If the battery is weak (under 12.4 volts), replace it with a new one.
- Remove the positive terminal first, then the negative terminal.
- Replace with a new battery, connecting the positive terminal first, followed by the negative terminal.

3. Alternator Testing and Replacement

Tools Needed: Multimeter, socket set
Start the engine and measure the voltage at the battery terminals. It should be between 13.7 to 14.7 volts.
If below this range, the alternator may need replacement:
- Disconnect the battery again.
- Remove the serpentine belt using the appropriate tool.
- Unbolt the alternator and disconnect the electrical connectors.
- Install the new alternator in reverse order and reconnect the battery.

4. Parasitic Draw Testing

Tools Needed: Multimeter
With the vehicle off, set the multimeter to measure amperage.
Disconnect the negative battery terminal and place the multimeter in series with the negative cable and the battery post.
Identify any circuits that draw excessive current (greater than 50 mA).
- If found, investigate the circuits for faults and repair or replace defective components.