why does my Ford Explorer Fifth Generation (2011-2019) have a delay in acceleration

Ford Explorer Fifth Generation (2011-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

4 min read

602 words

Problem Statement

Learn how to diagnose and fix delay in acceleration issues in Ford Explorer Fifth Generation (2011-2019). 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.
•Relieve fuel pressure before disconnecting fuel lines to prevent fuel spray.

Symptoms

•Delayed throttle response when pressing the accelerator
•Engine stalling during acceleration
•Poor acceleration performance
•Jerking or hesitation during acceleration
•Check engine light illuminated (possible)

Diagnostic Steps

1
Scan the vehicle's onboard diagnostic system using an OBD-II scanner to check for error codes.
2
Inspect the throttle body for carbon build-up or damage that may impede airflow.
3
Check the air filter for clogging or excessive dirt that could restrict airflow.
4
Examine the fuel system for issues, including fuel pressure and fuel filter condition.
5
Review the transmission fluid level and condition, looking for signs of contamination or low levels.
6
Test the mass airflow sensor (MAF) for proper operation using 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
•Socket set
•Throttle body cleaner
•Soft brush
•Clean rags
•Fuel line disconnect tool
•Catch basin for fuel
•Dipstick or fluid level gauge
•Funnel

Parts Required

•Throttle body (if damaged)
•Air filter
•Fuel filter
•Transmission fluid (if required)

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Diagnostic Steps

1
Scan the vehicle's onboard diagnostic system using an OBD-II scanner to check for error codes.
2
Inspect the throttle body for carbon build-up or damage that may impede airflow.
3
Check the air filter for clogging or excessive dirt that could restrict airflow.
4
Examine the fuel system for issues, including fuel pressure and fuel filter condition.
5
Review the transmission fluid level and condition, looking for signs of contamination or low levels.
6
Test the mass airflow sensor (MAF) for proper operation using a multimeter.

Solution

1. Preparation

Gather necessary tools and parts.
Disconnect the battery to ensure safety while working on electrical components.
Allow the engine to cool before starting work.

2. Clean or Replace Throttle Body

Tools Required: Socket set, throttle body cleaner, soft brush, clean rags.
Remove the air intake duct to access the throttle body.
Disconnect the electrical connector from the throttle body.
Remove the throttle body mounting bolts using the socket set.
Clean the throttle body with throttle body cleaner and a soft brush.
If the throttle body is damaged, replace it with a new unit.
Reinstall the throttle body and reconnect the electrical connector.

3. Inspect and Replace Air Filter

Tools Required: None (may require a screwdriver depending on housing).
Open the air filter housing and remove the old air filter.
Inspect for dirt and debris; replace if needed.
Install a new air filter, ensuring a proper seal in the housing.

4. Check and Replace Fuel Filter

Tools Required: Fuel line disconnect tool, socket set, catch basin for fuel.
Relieve fuel pressure from the system by removing the fuel pump fuse and starting the engine until it stalls.
Disconnect the fuel lines using the fuel line disconnect tool.
Remove the fuel filter from its mounting bracket.
Install a new fuel filter and reconnect the fuel lines securely.

5. Check Transmission Fluid

Tools Required: Dipstick or fluid level gauge, funnel.
With the engine running, check the transmission fluid level using the dipstick.
If low, add the appropriate type of transmission fluid as specified in the owner's manual.
If the fluid is dark or smells burnt, consider a transmission fluid change.