why does my Ford Explorer Fifth Generation (2011-2019) feel like it is losing power going uphill

Ford Explorer Fifth Generation (2011-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

4 min read

686 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 power loss issues 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 performing any electrical work.
•Ensure the vehicle is parked on a level surface and the engine is off.

Symptoms

•Engine struggles to accelerate when climbing hills
•Check engine light illuminated
•Poor fuel economy
•Engine sounds rough or labored
•Possible transmission slipping or hesitation during shifting

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify any potential issues.
2
Inspect the air filter for clogs or restrictions that could affect airflow to the engine.
3
Check fuel pressure using a fuel pressure gauge to ensure the fuel pump is functioning properly.
4
Examine the throttle body for dirt or carbon buildup that could impede airflow.
5
Test the ignition system components, including spark plugs and coils, for misfires or wear.
6
Inspect transmission fluid level and condition; low or dirty fluid can lead to performance issues.

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
•Fuel pressure gauge
•Socket set
•Torque wrench
•Cleaning supplies
•Throttle body cleaner
•Cleaning cloths

Parts Required

•Air filter
•Fuel pump (if found faulty)
•Spark plugs
•Ignition coils (if needed)
•Transmission fluid (if changing)

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Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify any potential issues.
2
Inspect the air filter for clogs or restrictions that could affect airflow to the engine.
3
Check fuel pressure using a fuel pressure gauge to ensure the fuel pump is functioning properly.
4
Examine the throttle body for dirt or carbon buildup that could impede airflow.
5
Test the ignition system components, including spark plugs and coils, for misfires or wear.
6
Inspect transmission fluid level and condition; low or dirty fluid can lead to performance issues.

Solution

1. Preparation

Gather tools: OBD-II scanner, fuel pressure gauge, socket set, torque wrench, cleaning supplies, and replacement parts if necessary.
Ensure the vehicle is parked on a level surface and the engine is off.
Disconnect the battery before performing any electrical work.

2. Replace Air Filter

Open the hood and locate the air filter housing.
Remove the screws or clips securing the housing.
Take out the old air filter and clean the housing with a damp cloth.
Install the new air filter, ensuring it is seated properly.
Secure the housing back in place.

3. Clean Throttle Body

Locate the throttle body, usually found between the air intake and the intake manifold.
Remove the intake duct connected to the throttle body (if applicable).
Use throttle body cleaner and a soft cloth or brush to clean the inside of the throttle body.
Reattach the intake duct and ensure all connections are secure.

4. Test and Replace Fuel Pump (if necessary)

Connect the fuel pressure gauge to the fuel rail test port.
Turn the ignition to the "On" position (do not start) and check the pressure reading.
If pressure is below specifications, replace the fuel pump:
1. Relieve the fuel system pressure.
2. Disconnect the battery.
3. Remove the fuel tank (if necessary) to access the fuel pump.
4. Disconnect wiring and fuel lines from the pump.
5. Remove the old pump and install the new one, following the manufacturer’s instructions.

5. Inspect and Replace Ignition Components (if needed)

Remove spark plugs using a socket wrench and inspect for wear or carbon buildup.
Replace with new plugs if necessary, ensuring the correct gap is set.
Check ignition coils for proper function; replace any faulty coils.

6. Check Transmission Fluid

Locate the transmission dipstick and check fluid level while the engine is running.
If low, add the appropriate transmission fluid. If dirty, consider a fluid change:
1. Drain the old fluid by removing the pan.
2. Replace the filter and gasket.
3. Refill with new fluid as per manufacturer specifications.