how to diagnose the fuel pump issue in my Ford Explorer Fifth Generation (2011-2019)

Ford Explorer Fifth Generation (2011-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

556 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 fuel pump issues in Ford Explorer (2011-2019). Step-by-step guide with symptoms, diagnostic steps, and repair instructions.

Affected Component

Fuel System

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical components
•Allow the fuel system to depressurize before disconnecting fuel lines
•Work in a well-ventilated area to prevent inhalation of fuel vapors

Symptoms

•Check engine light illuminated
•Engine cranks but fails to start
•Intermittent loss of power during acceleration
•Engine stalling after starting
•Unusual whining noise from the fuel tank
•Poor fuel economy

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to check for relevant diagnostic trouble codes (DTCs)
2
Inspect the fuel pump fuse and relay for any signs of damage or failure
3
Measure the fuel pressure at the fuel rail using a fuel pressure gauge to ensure it meets manufacturer specifications
4
Check the fuel pump wiring for any signs of wear, corrosion, or loose connections
5
Listen for the fuel pump operating by turning the ignition key to the 'ON' position without starting the engine
6
Inspect the fuel tank for any signs of leaks or damage

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
•Screwdrivers
•Jack and jack stands

Parts Required

•Replacement fuel pump
•Fuel filter (if applicable)
•Seals and gaskets for the fuel pump assembly

Related Faults

Share this solution

Comments

No comments yet

Be the first to share your thoughts

Back to Generation

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to check for relevant diagnostic trouble codes (DTCs)
2
Inspect the fuel pump fuse and relay for any signs of damage or failure
3
Measure the fuel pressure at the fuel rail using a fuel pressure gauge to ensure it meets manufacturer specifications
4
Check the fuel pump wiring for any signs of wear, corrosion, or loose connections
5
Listen for the fuel pump operating by turning the ignition key to the 'ON' position without starting the engine
6
Inspect the fuel tank for any signs of leaks or damage

Solution

1. Preparation

Gather all necessary tools and parts.
Disconnect the battery to prevent electrical shorts.

2. Access Fuel Pump

Lift the vehicle using a jack and secure it with jack stands.
Remove the rear seat or access panel as needed to reach the fuel pump access cover.
Unscrew and remove the access cover.

3. Remove Fuel Pump

Disconnect the fuel lines from the pump, using caution to avoid fuel spills.
Disconnect the wiring harness from the fuel pump.
Unscrew and remove the fuel pump assembly from the tank.

4. Inspect and Replace

Inspect the old fuel pump for signs of damage or wear.
If replacement is necessary, install the new fuel pump into the assembly.
Ensure that all seals and gaskets are replaced to prevent leaks.

5. Reassemble Components

Reconnect the wiring harness to the new fuel pump.
Reattach the fuel lines securely, ensuring they are not pinched or damaged.
Replace the access cover and secure it.

6. Final Checks

Reconnect the battery.
Turn the ignition key to the "ON" position to prime the fuel system and check for leaks.
Start the engine and verify proper operation.