why does my Ford Explorer Fifth Generation (2011-2019) exhibit turbo lag during acceleration

Ford Explorer Fifth Generation (2011-2019)

Error Codes

4-8 hours

Time

hard

Difficulty

high

Severity

3 min read

553 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 turbo lag issues in Ford Explorer Fifth Generation (2011-2019). Step-by-step guide with symptoms, diagnostic steps, and repair instructions.

Affected Component

Engine

Estimated Time

4-8 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical systems.
•Allow the engine to cool before opening any components to avoid burns.

Symptoms

•Noticeable delay in acceleration when pressing the gas pedal
•Engine RPMs increase slowly despite a fully depressed accelerator
•Engine stalling or hesitating when attempting to accelerate quickly
•Poor throttle response during low-speed driving
•Increased fuel consumption compared to normal driving conditions

Diagnostic Steps

1
Scan the vehicle's onboard computer using an OBD-II scanner for any trouble codes related to the turbocharger or engine performance.
2
Inspect the turbocharger for any visible signs of damage, oil leaks, or foreign objects obstructing the compressor or turbine.
3
Check the integrity of the intercooler and associated piping for leaks or damage.
4
Test the wastegate operation to ensure it is functioning correctly and not stuck.
5
Measure boost pressure with a boost gauge to verify whether the turbocharger is producing the correct amount of boost.
6
Inspect the air intake system for restrictions, including the air filter and intake ducts.

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
•Torque wrench
•Boost gauge
•Vacuum pump

Parts Required

•Turbocharger (if damaged)
•Wastegate actuator (if faulty)
•Intercooler (if damaged)
•Air filter (if dirty)

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Symptoms

•Noticeable delay in acceleration when pressing the gas pedal

•Engine RPMs increase slowly despite a fully depressed accelerator

•Engine stalling or hesitating when attempting to accelerate quickly

•Poor throttle response during low-speed driving

•Increased fuel consumption compared to normal driving conditions

Diagnostic Steps

1
Scan the vehicle's onboard computer using an OBD-II scanner for any trouble codes related to the turbocharger or engine performance.
2
Inspect the turbocharger for any visible signs of damage, oil leaks, or foreign objects obstructing the compressor or turbine.
3
Check the integrity of the intercooler and associated piping for leaks or damage.
4
Test the wastegate operation to ensure it is functioning correctly and not stuck.
5
Measure boost pressure with a boost gauge to verify whether the turbocharger is producing the correct amount of boost.
6
Inspect the air intake system for restrictions, including the air filter and intake ducts.

Solution

1. Preparation

Gather necessary tools and parts.
Disconnect the battery to ensure safety.
Allow the engine to cool before starting work.

2. Inspect and Replace Turbocharger Components

Turbocharger Inspection
- Remove any components obstructing access to the turbocharger (e.g., heat shields, intake piping).
- Inspect the turbo for play in the shaft and signs of oil leakage.
- If damaged, replace the turbocharger with a new one.
Wastegate Testing and Replacement
- Check the wastegate actuator for proper movement by applying vacuum or pressure.
- If the wastegate is malfunctioning, remove the wastegate actuator and replace it.

3. Repair Intercooler and Piping

Visual Inspection
- Inspect the intercooler for cracks or leaks.
- Check all connecting pipes for any signs of damage or loose connections.
Replacement or Sealing
- If leaks are found, either replace the intercooler or use appropriate sealant for minor damage.
- Ensure all connections are tight and secure.

4. Clean or Replace Air Filter

Remove the air filter from the intake system.
Inspect for clogging or dirt accumulation.
Replace the air filter if necessary.

5. Reconnect Components

Reattach all components removed during inspection and repair.
Ensure all clamps and bolts are tightened to manufacturer specifications.

Tools Required:

OBD-II scanner
Socket set
Torque wrench
Boost gauge
Vacuum pump

Parts Required:

Turbocharger (if damaged)
Wastegate actuator (if faulty)
Intercooler (if damaged)
Air filter (if dirty)

Estimated Repair Time: 4-8 hours

Safety Warnings:

Disconnect the battery before working on electrical systems.
Allow the engine to cool before opening any components to avoid burns.