why does my Ford Explorer Fifth Generation (2011-2019) lose power when driving

Ford Explorer Fifth Generation (2011-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

4 min read

659 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 loss of power issues in Ford Explorer Fifth Generation (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 servicing fuel components

Symptoms

•Loss of acceleration during driving
•Engine stalling or hesitation
•Check engine light illuminated
•Poor fuel economy
•Unusual noises from the engine or transmission
•Increased engine temperature

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 could affect airflow
3
Check fuel pressure using a fuel pressure gauge to ensure the fuel pump is functioning properly
4
Examine the throttle body for carbon buildup or sticking components
5
Inspect the ignition system, including spark plugs and ignition coils, for wear or failure
6
Test the mass airflow sensor (MAF) for correct readings with a multimeter

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
•Spark plug socket
•Throttle body cleaner
•Soft cloth
•Fuel line removal tool

Parts Required

•New spark plugs
•Fuel filter (if applicable)
•MAF sensor (if faulty)

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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 could affect airflow
3
Check fuel pressure using a fuel pressure gauge to ensure the fuel pump is functioning properly
4
Examine the throttle body for carbon buildup or sticking components
5
Inspect the ignition system, including spark plugs and ignition coils, for wear or failure
6
Test the mass airflow sensor (MAF) for correct readings with a multimeter

Solution

1. Preparation

Gather all tools and parts needed for the repair.
Ensure the vehicle is parked on a level surface and the engine is off.
Disconnect the battery to prevent electrical shorts.

2. Inspect and Clean Throttle Body

Sub-steps:
1. Remove the air intake duct connected to the throttle body using a socket set.
2. Use throttle body cleaner and a soft cloth to clean the inside of the throttle body.
3. Ensure the throttle plate moves freely without obstruction.
Tools Required: Socket set, throttle body cleaner, soft cloth.

3. Replace Fuel Filter (if applicable)

Sub-steps:
1. Locate the fuel filter, typically found along the fuel line or near the fuel tank.
2. Relieve fuel system pressure by removing the fuel pump fuse and starting the engine until it stalls.
3. Disconnect the fuel lines from the filter using a fuel line removal tool.
4. Install the new fuel filter, ensuring correct orientation with flow direction.
5. Reconnect the fuel lines and replace the fuel pump fuse.
Tools Required: Fuel line removal tool, socket set.

4. Inspect and Replace Spark Plugs

Sub-steps:
1. Remove the ignition coil cover (if equipped) using a socket set.
2. Disconnect the ignition coils and remove them from the spark plugs.
3. Use a spark plug socket to remove the old spark plugs and inspect them for wear or fouling.
4. Install new spark plugs, ensuring to gap them to the manufacturer's specifications.
5. Reinstall the ignition coils and cover.
Tools Required: Spark plug socket, torque wrench, socket set.

5. Check and Replace MAF Sensor (if faulty)

Sub-steps:
1. Locate the MAF sensor on the air intake duct.
2. Disconnect the electrical connector and remove the mounting screws.
3. Install a new MAF sensor and reconnect the electrical connector.
Tools Required: Screwdriver, socket set.