how to diagnose a hard starting issue in 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

589 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 hard starting issues in Ford Explorer Fifth Generation (2011-2019). Step-by-step guide with symptoms and solutions.

Affected Component

Engine

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical systems.
•Allow the engine to cool before opening the hood or inspecting components.

Symptoms

•Check engine light illuminated
•Engine cranks but fails to start
•Extended cranking time before the engine starts
•Engine starts but stalls shortly after
•Poor fuel economy
•Unusual sounds during cranking (e.g., clicking or grinding)

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify any stored trouble codes.
2
Check the battery voltage and condition to ensure it has sufficient power.
3
Inspect all fuses related to the ignition and fuel systems.
4
Verify fuel pump operation by listening for it to engage when the ignition is turned on.
5
Check for fuel pressure using a fuel pressure gauge to ensure adequate fuel delivery.
6
Inspect ignition system components, including spark plugs, ignition coils, and wiring.
7
Test for proper air intake by inspecting the air filter and intake system for blockages.

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
•Multimeter
•Fuel pressure gauge
•Wrench set
•Torque wrench
•Spark plug socket
•Screwdriver set

Parts Required

•Battery (if necessary)
•Fuel filter
•Spark plugs
•Ignition coils (if necessary)
•Air filter

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Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify any stored trouble codes.
2
Check the battery voltage and condition to ensure it has sufficient power.
3
Inspect all fuses related to the ignition and fuel systems.
4
Verify fuel pump operation by listening for it to engage when the ignition is turned on.
5
Check for fuel pressure using a fuel pressure gauge to ensure adequate fuel delivery.
6
Inspect ignition system components, including spark plugs, ignition coils, and wiring.
7
Test for proper air intake by inspecting the air filter and intake system for blockages.

Solution

1. Preparation

Gather all necessary tools and parts.
Ensure the vehicle is parked on a level surface and the ignition is off.
Disconnect the battery negative terminal to prevent electrical shorts.

2. Battery Inspection and Replacement

Tools Required: Multimeter, wrench set
Use the multimeter to measure the battery voltage; it should be at least 12.6 volts.
If the voltage is low, charge or replace the battery.
Reconnect the battery and ensure tight connections.

3. Fuel System Inspection

Tools Required: Fuel pressure gauge, safety glasses, rags
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; it should be between 50-60 psi.
If pressure is low, inspect the fuel pump and fuel filter for blockages or failures.
Replace the fuel filter if necessary and test the fuel pump operation.

4. Ignition System Repair

Tools Required: Spark plug socket, torque wrench, multimeter
Remove the spark plugs and inspect for wear or fouling. Replace if necessary.
Check ignition coils for proper resistance using a multimeter. Replace any faulty coils.
Reinstall spark plugs using the specified torque value (typically around 13-15 ft-lbs).

5. Air Intake System Inspection

Tools Required: Screwdriver set, cleaning tools
Inspect the air filter for dirt and replace if necessary.
Check the intake tubing for cracks or leaks that could affect air flow.
Clean the throttle body if carbon buildup is present.