my Ford F-150 13th Generation (2015-2020) loses power after hitting bumps

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

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

4 min read

601 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 loss of power after hitting bumps in Ford F-150 (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 the battery before working on electrical systems.
•Allow the engine to cool before inspecting or working on components.

Symptoms

•Loss of engine power or hesitation
•Intermittent stalling or rough idling
•Dashboard warning lights illuminated (e.g., check engine light)
•Unusual noises from the engine or fuel system
•Difficulty starting the engine after hitting a bump

Diagnostic Steps

1
Scan the vehicle for error codes using an OBD-II scanner to identify any stored trouble codes.
2
Inspect the battery connections for corrosion or loose terminals that may cause intermittent power loss.
3
Check the fuel system for proper pressure and inspect for any leaks or blockages.
4
Examine engine and transmission mounts for damage, which could lead to misalignment when hitting bumps.
5
Inspect wiring harnesses and connectors for damage or loose connections, particularly those related to the fuel and ignition systems.
6
Test the ignition system components (spark plugs, coils) for proper functionality.

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
•Fuel pressure gauge
•Socket set
•Wire brush
•Multimeter

Parts Required

•Fuel filter (if needed)
•Engine and transmission mounts (if damaged)
•Spark plugs (if worn)
•Ignition coils (if faulty)

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Diagnostic Steps

1
Scan the vehicle for error codes using an OBD-II scanner to identify any stored trouble codes.
2
Inspect the battery connections for corrosion or loose terminals that may cause intermittent power loss.
3
Check the fuel system for proper pressure and inspect for any leaks or blockages.
4
Examine engine and transmission mounts for damage, which could lead to misalignment when hitting bumps.
5
Inspect wiring harnesses and connectors for damage or loose connections, particularly those related to the fuel and ignition systems.
6
Test the ignition system components (spark plugs, coils) for proper functionality.

Solution

1. Preparation

Gather necessary tools and parts.
Ensure the vehicle is parked on a level surface, and the engine is turned off and cool.
Disconnect the battery to prevent any electrical shorts.

2. Inspect and Secure Battery Connections

Sub-steps:
1. Remove the battery terminals, starting with the negative (-) terminal.
2. Clean any corrosion from the terminals and battery posts using a wire brush.
3. Reattach the terminals securely, ensuring a tight fit.

3. Inspect Fuel System

Sub-steps:
1. Locate the fuel pressure test port on the fuel rail.
2. Use a fuel pressure gauge to check the fuel pressure against manufacturer specifications.
3. If pressure is low, check the fuel pump, filter, and lines for clogs or damage.
4. Replace the fuel filter if necessary.

4. Inspect Engine and Transmission Mounts

Sub-steps:
1. Visually inspect the engine and transmission mounts for cracks or wear.
2. If damaged, use a socket set to remove the bolts securing the mounts.
3. Replace with new mounts and torque to manufacturer specifications (typically around 40-60 ft-lbs).

5. Inspect Wiring Harnesses

Sub-steps:
1. Trace the wiring harnesses from the battery to the engine and fuel system.
2. Look for frayed wires, loose connectors, or signs of damage.
3. Repair or replace any damaged wiring or connectors as needed.

6. Test Ignition System

Sub-steps:
1. Remove the spark plugs using a socket wrench and inspect them for wear or carbon buildup.
2. Replace spark plugs that show signs of damage or excessive wear.
3. Check ignition coils for proper resistance using a multimeter.
4. Replace any faulty ignition coils.