why is my Ford Explorer losing power while driving?

Ford Explorer Fifth Generation (2011-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

562 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

Discover how to diagnose and fix power loss issues in Ford Explorer. 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 battery before working on electrical systems
•Allow the engine to cool before starting repairs to prevent burns

Symptoms

•Check engine light illuminated
•Engine stalling or hesitating during acceleration
•Rough idle when the engine is running
•Reduced throttle response
•Poor fuel economy
•Unusual engine noises (e.g., knocking or pinging)

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify any diagnostic trouble codes (DTCs)
2
Inspect the air filter for clogs or restrictions that may hinder airflow
3
Check fuel pressure using a fuel pressure gauge to ensure the fuel pump is delivering adequate pressure
4
Inspect the ignition system components, including spark plugs and ignition coils, for wear or damage
5
Examine the throttle body for carbon buildup or mechanical issues
6
Check for vacuum leaks in hoses and connections that could affect engine performance

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
•Torque wrench
•Throttle body cleaner
•Multimeter

Parts Required

•Air filter
•Spark plugs
•Fuel filter (if applicable)
•Ignition coils (if applicable)

Related Faults

Share this solution

Comments

No comments yet

Be the first to share your thoughts

Back to Generation

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify any diagnostic trouble codes (DTCs)
2
Inspect the air filter for clogs or restrictions that may hinder airflow
3
Check fuel pressure using a fuel pressure gauge to ensure the fuel pump is delivering adequate pressure
4
Inspect the ignition system components, including spark plugs and ignition coils, for wear or damage
5
Examine the throttle body for carbon buildup or mechanical issues
6
Check for vacuum leaks in hoses and connections that could affect engine performance

Solution

1. Preparation

Gather necessary tools and parts.
Disconnect the negative battery terminal to avoid electrical shorts during repairs.

2. Replace Clogged Air Filter

Locate the air filter housing.
Open the housing by unclipping or unscrewing it.
Remove the old air filter and inspect the housing for debris.
Install a new air filter, ensuring it is seated properly.
Reassemble the air filter housing.

3. Fuel System Inspection and Repair

Connect a fuel pressure gauge to the fuel rail test port.
Start the engine and observe the pressure reading. It should match manufacturer specifications (usually around 30-50 psi for most models).
If pressure is low, check the fuel pump relay and fuse, and inspect fuel lines for leaks.
If necessary, replace the fuel pump or any faulty components in the fuel system.

4. Ignition System Maintenance

Remove the spark plugs using a socket wrench; inspect for wear and carbon buildup.
Replace with new spark plugs that meet specifications (refer to owner's manual for part number).
Test ignition coils using a multimeter to ensure they meet resistance specifications.
Replace any faulty ignition coils.

5. Throttle Body Cleaning

Locate the throttle body and remove the intake duct connected to it.
Use a throttle body cleaner and a soft cloth or brush to clean the inside of the throttle body.
Ensure the throttle plate moves freely and is not sticking.
Reassemble the intake duct securely.