why does my Ford Explorer Sixth Generation (2020-present) lose power when accelerating?

Ford Explorer Sixth Generation (2020-present)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

532 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 during acceleration in Ford Explorer (2020-present). 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 the battery before working on electrical systems.
•Allow engine to cool before opening any components.

Symptoms

•Check engine light illuminated
•Engine stalling during acceleration
•Hesitation or lag when pressing the accelerator
•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 engine fault codes.
2
Inspect the air intake system for blockages or leaks.
3
Check fuel pressure using a fuel pressure gauge to ensure proper fuel delivery.
4
Examine the throttle body for carbon buildup or malfunction.
5
Test the ignition system components including spark plugs and ignition coils.
6
Assess the transmission for proper operation and fluid levels.

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

•Throttle body gasket (if applicable)
•Fuel filter (if applicable)
•Ignition coils (if applicable)
•Spark plugs (if applicable)

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Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify any engine fault codes.
2
Inspect the air intake system for blockages or leaks.
3
Check fuel pressure using a fuel pressure gauge to ensure proper fuel delivery.
4
Examine the throttle body for carbon buildup or malfunction.
5
Test the ignition system components including spark plugs and ignition coils.
6
Assess the transmission for proper operation and fluid levels.

Solution

1. Preparation

Gather tools and parts.
Disconnect the negative battery terminal to prevent electrical shorts.
Allow the engine to cool if it has been running.

2. Inspect and Clean the Throttle Body

Remove the throttle body assembly from the intake manifold.
Use throttle body cleaner and a soft brush to clean the interior surfaces.
Inspect the throttle position sensor (TPS) for damage and replace if necessary.
Reinstall the throttle body and tighten to manufacturer's torque specifications.

3. Fuel System Inspection

Remove the fuel pressure test port cap and attach a fuel pressure gauge.
Start the engine and monitor the fuel pressure; it should match the manufacturer's specifications.
If pressure is low, inspect the fuel pump, fuel filter, and fuel lines for blockages or leaks.
Replace the fuel filter if necessary and ensure the fuel pump is functioning correctly.

4. Ignition System Service

Remove the ignition coils and inspect for cracks or damage.
Replace any faulty ignition coils and ensure they are seated properly.
Remove spark plugs and inspect for wear, carbon buildup, or oil fouling; replace as needed.
Reinstall ignition coils and reconnect electrical connectors.

5. Transmission Fluid Check

Check the transmission fluid level with the engine running to ensure it is at the correct level.
Inspect for any signs of fluid contamination or burnt smell; if needed, replace the transmission fluid and filter.