why is my Ford Explorer Fifth Generation (2011-2019) losing power while driving

Ford Explorer Fifth Generation (2011-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

566 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 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.
•Relieve fuel system pressure before replacing fuel components.

Symptoms

•Engine stalling or hesitation during acceleration
•Reduced throttle response
•Check engine light illuminated
•Poor fuel economy
•Engine misfires or rough idling
•Unusual engine noises (e.g., knocking or pinging)

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify any trouble codes.
2
Inspect the fuel system, including fuel pump operation and fuel filter condition.
3
Check for vacuum leaks in the intake system and around the throttle body.
4
Inspect the air filter for clogs or restrictions.
5
Test the ignition system components, including spark plugs and coils.
6
Examine the exhaust system for blockages or restrictions 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

Parts Required

•Fuel pump (if needed)
•Fuel filter
•Vacuum hoses (if required)
•Air filter
•Spark plugs
•Ignition coils (if needed)

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Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify any trouble codes.
2
Inspect the fuel system, including fuel pump operation and fuel filter condition.
3
Check for vacuum leaks in the intake system and around the throttle body.
4
Inspect the air filter for clogs or restrictions.
5
Test the ignition system components, including spark plugs and coils.
6
Examine the exhaust system for blockages or restrictions that could affect engine performance.

Solution

1. Preparation

Gather necessary tools and materials.
Disconnect the battery to ensure safety during repairs.

2. Address Fuel System Issues

Fuel Pump Inspection
- Use a fuel pressure gauge to check fuel pressure against manufacturer specifications.
- If pressure is low, replace the fuel pump.
Fuel Filter Replacement
- Locate the fuel filter (usually along the fuel line).
- Relieve fuel system pressure, then disconnect both fuel lines.
- Replace the old filter with a new one and reconnect the lines.

3. Repair Vacuum Leaks

Inspect and Replace Hoses
- Visually inspect vacuum hoses for cracks or disconnections.
- Replace any damaged hoses with new ones, ensuring a snug fit.

4. Check Air Filter and Throttle Body

Air Filter Replacement
- Remove the air filter housing cover.
- Replace the air filter with a new one, ensuring it seals properly.
Throttle Body Cleaning
- Disconnect the throttle body from the intake manifold.
- Use throttle body cleaner and a soft cloth to clean the interior surfaces.
- Reattach the throttle body, ensuring all connections are secure.

5. Inspect and Replace Ignition Components

Spark Plug Replacement
- Remove the ignition coils to access the spark plugs.
- Replace spark plugs with OEM recommended types.
- Reinstall the ignition coils securely.

6. Examine the Exhaust System

Check for Blockages
- Inspect the exhaust system for any visible damage or clogs, especially the catalytic converter.
- If a blockage is found, replace the affected component.