why does my Ford Explorer Fifth Generation (2011-2019) have a delay when accelerating

Ford Explorer Fifth Generation (2011-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

567 words

Problem Statement

Learn how to diagnose and fix acceleration delay in Ford Explorer (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 components.
•Allow the engine to cool before inspecting or working on engine components.

Symptoms

•Delay in acceleration when pressing the gas pedal
•Engine revs without significant increase in speed
•Possible check engine light illuminated
•Engine stalling during acceleration
•Poor fuel economy
•Unusual noises during acceleration

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify any stored trouble codes.
2
Inspect the throttle body for carbon buildup or mechanical issues that may hinder its operation.
3
Check the transmission fluid level and condition to ensure proper transmission function.
4
Test the fuel pressure using a fuel pressure gauge to verify that the fuel pump is delivering adequate pressure.
5
Inspect the air intake system for blockages or leaks that could affect engine performance.
6
Examine the spark plugs and ignition system for wear or faults that could lead to misfires.

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
•Throttle body cleaner
•Fuel pressure gauge
•Socket set
•Torque wrench

Parts Required

•Fuel pump (if replacement is necessary)
•Spark plugs (if replacement is necessary)
•Transmission fluid (if replacement is necessary)

Related Faults

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Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify any stored trouble codes.
2
Inspect the throttle body for carbon buildup or mechanical issues that may hinder its operation.
3
Check the transmission fluid level and condition to ensure proper transmission function.
4
Test the fuel pressure using a fuel pressure gauge to verify that the fuel pump is delivering adequate pressure.
5
Inspect the air intake system for blockages or leaks that could affect engine performance.
6
Examine the spark plugs and ignition system for wear or faults that could lead to misfires.

Solution

1. Preparation

Gather necessary tools and safety equipment.
Disconnect the battery to prevent any electrical issues during repairs.

2. Clean or Replace Throttle Body

Tools Required: Throttle body cleaner, soft brush, socket set.
Remove the air intake duct leading to the throttle body.
Use throttle body cleaner and a soft brush to clean the interior surfaces of the throttle body.
Reinstall the air intake duct securely.

3. Check and Change Transmission Fluid

Tools Required: Transmission fluid pump, fluid catch pan, socket set.
Place a fluid catch pan under the transmission pan.
Remove the transmission pan bolts and carefully lower the pan.
Inspect the fluid for contamination; if dirty, replace it with the manufacturer-recommended transmission fluid.
Reinstall the transmission pan and torque the bolts to the manufacturer's specifications.

4. Test and Replace Fuel Pump (if needed)

Tools Required: Fuel pressure gauge, socket set.
Connect the fuel pressure gauge to the fuel rail.
Start the engine and check the fuel pressure reading; it should match the manufacturer specifications.
If the pressure is low, replace the fuel pump by following the specific instructions for the vehicle model.

5. Inspect and Replace Spark Plugs

Tools Required: Socket set, spark plug socket, torque wrench.
Remove the ignition coils and spark plugs from the engine.
Inspect spark plugs for wear or fouling; replace if necessary.
Install new spark plugs and torque them to the manufacturer’s specifications.