why does my Ford Explorer Fifth Generation (2011-2019) feel like it’s losing power

Ford Explorer Fifth Generation (2011-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

572 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 power loss issues in Ford Explorer 2011-2019. Step-by-step guide with diagnostic procedures 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.
•Relieve fuel system pressure before servicing the fuel system.

Symptoms

•Engine stalling or hesitation during acceleration
•Check engine light illuminated
•Poor fuel economy
•Rough idle or uneven engine performance
•Decreased responsiveness when pressing the accelerator
•Increased engine noise or vibration

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify any trouble codes.
2
Check the fuel pressure using a fuel pressure gauge to ensure the fuel system is delivering adequate pressure.
3
Inspect air intake system for blockages or leaks, including the air filter and intake manifold.
4
Test the throttle position sensor (TPS) for proper function using a multimeter.
5
Examine the condition of spark plugs and ignition coils for wear or damage.
6
Review the exhaust system for blockages or leaks that may 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
•Fuel line disconnect tool
•Socket set
•Torque wrench
•Multimeter

Parts Required

•Fuel filter
•Spark plugs
•Throttle position sensor (if necessary)
•Air filter

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Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify any trouble codes.
2
Check the fuel pressure using a fuel pressure gauge to ensure the fuel system is delivering adequate pressure.
3
Inspect air intake system for blockages or leaks, including the air filter and intake manifold.
4
Test the throttle position sensor (TPS) for proper function using a multimeter.
5
Examine the condition of spark plugs and ignition coils for wear or damage.
6
Review the exhaust system for blockages or leaks that may affect engine performance.

Solution

1. Preparation

Gather tools and parts needed for the repair.
Disconnect the battery to ensure safety while working on electrical components.

2. Replace Fuel Filter

Locate the fuel filter (usually along the fuel line).
Sub-steps:
- Relieve fuel system pressure by removing the fuel pump fuse and starting the engine until it stalls.
- Disconnect fuel lines from the filter using a fuel line disconnect tool.
- Remove the old fuel filter and install the new one, ensuring correct orientation.
- Reconnect the fuel lines securely.

3. Inspect and Replace Spark Plugs

Remove the ignition coils from the spark plug wells.
Sub-steps:
- Use a socket wrench to remove the old spark plugs.
- Inspect the spark plugs for wear; replace if needed.
- Install new spark plugs, torque to manufacturer specifications (typically around 13-15 ft-lbs).
- Reinstall the ignition coils, ensuring they are seated properly.

4. Test and Replace Throttle Position Sensor (if necessary)

Locate the throttle body and TPS.
Sub-steps:
- Disconnect the electrical connector from the TPS.
- Remove the TPS using a screwdriver.
- Install the new TPS and reconnect the electrical connector.
- Recheck the throttle operation with a multimeter to ensure proper voltage readings.

5. Inspect Air Intake System

Check the air filter and intake duct for obstructions.
Sub-steps:
- Remove the air filter and inspect for dirt or clogs; replace if necessary.
- Inspect the intake duct for cracks or loose connections and repair or replace as needed.