my Ford F-150 13th Generation (2015-2020) won't accelerate properly, what should I do?

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

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

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

Affected Component

Fuel System

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 the air intake or fuel system.

Symptoms

•Check engine light illuminated
•Engine stalling during acceleration
•Rough or hesitant acceleration
•Loss of power when climbing hills
•Poor fuel economy
•Unusual engine noises (knocking or pinging)

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify any stored trouble codes.
2
Check fuel levels to ensure sufficient fuel supply.
3
Inspect the air filter for blockage or dirt accumulation.
4
Examine the throttle body for carbon buildup or malfunction.
5
Test the fuel pressure using a fuel pressure gauge to ensure it meets specifications.
6
Inspect the transmission fluid level and condition, looking for discoloration or burnt smell.

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
•Throttle body cleaner
•Soft cloth
•Fuel pressure gauge
•Socket set
•Torque wrench

Parts Required

•Fuel filter
•Fuel pump (if low fuel pressure is determined)
•Transmission fluid (if low)

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Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify any stored trouble codes.
2
Check fuel levels to ensure sufficient fuel supply.
3
Inspect the air filter for blockage or dirt accumulation.
4
Examine the throttle body for carbon buildup or malfunction.
5
Test the fuel pressure using a fuel pressure gauge to ensure it meets specifications.
6
Inspect the transmission fluid level and condition, looking for discoloration or burnt smell.

Solution

1. Preparation

Gather necessary tools and parts before starting.
Disconnect the battery to prevent electrical shorts.
Allow the engine to cool before beginning work.

2. Inspect and Clean Throttle Body

Remove the air intake duct connected to the throttle body.
Use throttle body cleaner and a soft cloth to clean the throttle plate and surrounding areas.
Ensure the throttle plate moves freely and is not sticking.
Reattach the air intake duct securely.

3. Fuel System Inspection

If fuel pressure is low, replace the fuel filter if it is clogged.
If needed, replace the fuel pump by removing the rear seat or accessing the fuel tank.
- Disconnect the negative battery terminal.
- Relieve fuel system pressure by removing the fuel pump relay and starting the engine until it stalls.
- Remove the fuel tank, disconnect the fuel lines, and replace the pump.
Reconnect all components and ensure no leaks.

4. Transmission Fluid Check

Check the transmission fluid level using the dipstick while the engine is running.
If low, add the appropriate transmission fluid as specified in the owner's manual.
If the fluid is burnt or discolored, consider a transmission fluid flush or consult a specialist.