why does my Ford Explorer hesitate when I accelerate

Ford Explorer Sixth Generation (2020-present)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

4 min read

603 words

Problem Statement

Learn how to diagnose and fix hesitation during acceleration in Ford Explorer. 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 the engine to cool before performing any maintenance

Symptoms

•Hesitation or stuttering during acceleration
•Check engine light illuminated
•Rough idle when the engine is at a standstill
•Decreased fuel efficiency
•Unusual engine noises (e.g., knocking or pinging)
•Strong fuel odor (if related to fuel delivery issues)

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify any stored diagnostic trouble codes (DTCs)
2
Inspect the air filter for clogs or obstructions that could restrict airflow to the engine
3
Check fuel pressure using a fuel pressure gauge to ensure it meets manufacturer specifications
4
Examine the spark plugs for wear or fouling that might affect engine performance
5
Inspect ignition coils for proper function and signs of damage
6
Review the throttle position sensor (TPS) readings to verify its operational status

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
•Socket set
•Fuel pressure gauge
•Multimeter
•Fuel line disconnect tools

Parts Required

•Air filter
•Spark plugs
•Ignition coils (if faulty)
•Fuel filter
•Throttle position sensor (if faulty)

Related Faults

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Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify any stored diagnostic trouble codes (DTCs)
2
Inspect the air filter for clogs or obstructions that could restrict airflow to the engine
3
Check fuel pressure using a fuel pressure gauge to ensure it meets manufacturer specifications
4
Examine the spark plugs for wear or fouling that might affect engine performance
5
Inspect ignition coils for proper function and signs of damage
6
Review the throttle position sensor (TPS) readings to verify its operational status

Solution

1. Preparation

Gather necessary tools and parts.
Ensure the vehicle is parked on a level surface and the engine is cool.
Disconnect the battery to avoid electrical shocks.

2. Replace Clogged Air Filter

Remove the air filter housing cover using a socket set.
Take out the old air filter and inspect for dirt and debris.
Install a new air filter, ensuring it is seated properly.
Reattach the air filter housing cover and tighten screws.

3. Check and Replace Spark Plugs

Remove the ignition coil bolts and disconnect the electrical connectors.
Carefully pull out the ignition coils.
Use a spark plug socket to remove the old spark plugs.
Inspect the spark plug gaps and replace with new plugs, torquing to manufacturer specifications (usually 13-15 lb-ft).
Reinstall the ignition coils and reconnect the electrical connectors.

4. Test and Replace Fuel Filter (if applicable)

Locate the fuel filter and relieve fuel pressure by removing the fuel pump fuse and running the engine until it stalls.
Disconnect the fuel lines from the filter using fuel line disconnect tools.
Replace the old fuel filter with a new one, ensuring correct orientation.
Reconnect the fuel lines and install the fuel pump fuse.

5. Inspect Throttle Position Sensor (TPS)

Locate the TPS on the throttle body.
Use a multimeter to check the resistance and voltage output of the sensor.
If readings are out of specification, remove the TPS and replace it with a new one, ensuring proper alignment.