why does my Ford Explorer hesitate when I press the gas pedal

Ford Explorer Fifth Generation (2011-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

530 words

Problem Statement

Learn how to diagnose and fix hesitation issues in Ford Explorer. 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 battery before working on electrical systems
•Allow engine to cool before performing maintenance tasks
•Fuel can be flammable; keep away from open flames

Symptoms

•Engine stalling during acceleration
•Rough or uneven acceleration
•Check engine light illuminated
•Decreased fuel economy
•Increased engine noise or vibration
•Poor throttle response

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify any diagnostic trouble codes (DTCs)
2
Inspect the throttle body for carbon buildup or obstructions
3
Check the fuel pressure using a fuel pressure gauge to ensure it meets manufacturer specifications
4
Examine the air filter for clogs or restrictions
5
Inspect the ignition system components, including spark plugs and ignition coils, for wear or failure
6
Evaluate the mass airflow sensor (MAF) for proper operation by cleaning or replacing as needed

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
•Line disconnect tool
•Fuel pressure gauge
•Throttle body cleaner
•Spark plug gap tool

Parts Required

•Fuel filter
•Spark plugs

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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 throttle body for carbon buildup or obstructions
3
Check the fuel pressure using a fuel pressure gauge to ensure it meets manufacturer specifications
4
Examine the air filter for clogs or restrictions
5
Inspect the ignition system components, including spark plugs and ignition coils, for wear or failure
6
Evaluate the mass airflow sensor (MAF) for proper operation by cleaning or replacing as needed

Solution

1. Preparation

Gather necessary tools and safety equipment.
Disconnect the battery to prevent electrical shorts.
Ensure the vehicle is parked on a level surface and the engine is cool.

2. Clean the Throttle Body

Sub-steps:
1. Remove the intake duct connected to the throttle body using a socket set.
2. Spray throttle body cleaner onto a clean cloth and gently wipe the inside of the throttle body.
3. Reassemble the intake duct and reconnect any electrical connectors.
Tools Required: Socket set, throttle body cleaner.
Safety Warnings: Ensure the engine is off and cool before cleaning.

3. Replace Fuel Filter

Sub-steps:
1. Locate the fuel filter (typically along the fuel line).
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 fuel filter using a line disconnect tool.
4. Install the new fuel filter in the same orientation as the old one, ensuring secure connections.
Tools Required: Line disconnect tool, wrench set.
Safety Warnings: Fuel can be flammable; keep away from open flames.

4. Inspect and Replace Spark Plugs

Sub-steps:
1. Remove the ignition coil covers to access the spark plugs.
2. Use a socket wrench to remove the old spark plugs.
3. Install new spark plugs, ensuring they are gapped to manufacturer's specifications (usually 0.054 inches).
4. Reattach the ignition coils and covers.
Tools Required: Socket wrench, spark plug gap tool.
Safety Warnings: Ensure the engine is cool to avoid burns.