how to fix rough acceleration in my Ford F-150 13th Generation (2015-2020)

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 rough acceleration in Ford F-150 (2015-2020). Step-by-step guide with symptoms, diagnostic steps, and repair instructions.

Affected Component

Engine

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 opening components.

Symptoms

•Check engine light illuminated
•Engine misfires during acceleration
•Decreased power output
•Unusual engine noises (e.g., knocking or pinging)
•Poor fuel economy
•Hesitation or stuttering during acceleration

Diagnostic Steps

1
Scan the vehicle for error codes using an OBD-II scanner to identify any stored trouble codes.
2
Inspect the spark plugs for wear or damage, and check the ignition coils for proper function.
3
Check the fuel pressure using a fuel pressure gauge to ensure it meets manufacturer specifications.
4
Inspect the air filter for cleanliness and proper airflow.
5
Examine the throttle body for carbon buildup and proper operation.
6
Test the transmission fluid level and condition.

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
•Socket set
•Fuel pressure gauge
•Multimeter
•Basic hand tools

Parts Required

•Spark plugs
•Ignition coils
•Throttle body cleaner
•Fuel filter (if necessary)

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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 spark plugs for wear or damage, and check the ignition coils for proper function.
3
Check the fuel pressure using a fuel pressure gauge to ensure it meets manufacturer specifications.
4
Inspect the air filter for cleanliness and proper airflow.
5
Examine the throttle body for carbon buildup and proper operation.
6
Test the transmission fluid level and condition.

Solution

1. Preparation

Tools Required: OBD-II scanner, socket set, fuel pressure gauge, multimeter, basic hand tools.
Park the vehicle on a flat surface and engage the parking brake.
Disconnect the battery negative terminal to ensure safety.

2. Replace Spark Plugs and Ignition Coils

Remove Engine Cover (if applicable)
- Use a socket set to remove bolts and carefully lift off the engine cover.
Access Spark Plugs and Ignition Coils
- Disconnect electrical connectors from ignition coils.
- Remove the ignition coil bolts and pull the coils out.
Replace Spark Plugs
- Use a spark plug socket to remove old spark plugs.
- Check the gap on new spark plugs and install them to the manufacturer’s specifications (usually around 0.030-0.035 inches).
- Torque the spark plugs to recommended values (usually around 12-15 lb-ft).
Install New Ignition Coils
- Place new ignition coils onto the spark plugs and secure them with bolts.
- Reconnect electrical connectors.

3. Clean Throttle Body

Remove Air Intake Hose
- Disconnect the air intake hose from the throttle body using a flathead screwdriver.
Clean Throttle Body
- Spray throttle body cleaner onto a clean cloth and wipe the inside of the throttle body to remove carbon buildup.
- Ensure the throttle plate operates freely without sticking.

4. Check and Replace Fuel Filter (if necessary)

Locate Fuel Filter
- Find the fuel filter according to the service manual.
Depressurize Fuel System
- Remove the fuel pump relay and start the engine until it stalls to relieve pressure.
Replace Fuel Filter
- Disconnect fuel lines carefully using appropriate tools.
- Install the new fuel filter in the same orientation as the old one.

5. Reconnect Battery

Reconnect the battery negative terminal and ensure all connections are secure.