why does my Ford Explorer Sixth Generation (2020-present) have an intermittent starting problem

Ford Explorer Sixth Generation (2020-present)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

581 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 intermittent starting problems in Ford Explorer (2020-present). Step-by-step guide with diagnostic procedures and repair instructions.

Affected Component

Electrical

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Always remove the negative terminal first to prevent short circuits.
•Disconnect the battery before working on electrical components.
•Allow the engine to cool before touching any components.

Symptoms

•Engine cranks slowly or not at all
•Dashboard warning lights may flicker or remain illuminated
•Clicking sound when the ignition is turned
•Battery seems charged but still fails to start
•Intermittent starting; sometimes starts normally, other times does not

Diagnostic Steps

1
Check the vehicle battery voltage using a multimeter.
2
Inspect battery terminals for corrosion or loose connections.
3
Scan for error codes using an OBD-II scanner to identify any related issues.
4
Test the starter motor by applying direct power to it.
5
Check the fuses associated with the starting system.
6
Inspect the ignition switch for proper operation.

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

•Multimeter
•Socket set
•OBD-II scanner
•Wire brush
•Jumper wire
•Fuse puller

Parts Required

•Replacement battery (if voltage is low)
•Starter motor (if faulty)
•Ignition switch (if defective)
•Fuses (if blown)

Related Faults

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Diagnostic Steps

1
Check the vehicle battery voltage using a multimeter.
2
Inspect battery terminals for corrosion or loose connections.
3
Scan for error codes using an OBD-II scanner to identify any related issues.
4
Test the starter motor by applying direct power to it.
5
Check the fuses associated with the starting system.
6
Inspect the ignition switch for proper operation.

Solution

1. Preparation

Gather tools and materials: multimeter, socket set, OBD-II scanner, and cleaning supplies.
Ensure the vehicle is parked on a level surface with the parking brake engaged.

2. Inspect Battery

Sub-steps:
1. Disconnect negative terminal first, followed by the positive terminal.
2. Clean battery terminals with a wire brush and a solution of baking soda and water if corrosion is present.
3. Reconnect the positive terminal first, then the negative terminal.
Tools Required: Wire brush, cleaning solution
Safety Warnings: Always remove the negative terminal first to prevent short circuits.

3. Test Battery Voltage

Sub-steps:
1. Connect the multimeter leads to the battery terminals (red to positive, black to negative).
2. Check voltage; it should read between 12.4V and 12.7V for a healthy battery.
3. If voltage is below 12.4V, consider charging or replacing the battery.
Tools Required: Multimeter

4. Inspect Starter Motor

Sub-steps:
1. Locate the starter motor (usually near the engine block).
2. Disconnect the wiring harness from the starter.
3. Use a jumper wire to apply direct battery voltage to the starter terminal.
4. If the starter engages and the engine starts, the starter may be faulty.
Tools Required: Jumper wire, socket set

5. Check Fuses

Sub-steps:
1. Locate the fuse box (consult the owner's manual for location).
2. Inspect the fuses related to the starting system (usually labeled).
3. Replace any blown fuses with the same amperage.
Tools Required: Fuse puller or pliers

6. Inspect Ignition Switch

Sub-steps:
1. Remove the steering column cover to access the ignition switch.
2. Check for continuity with a multimeter when the ignition is turned.
3. Replace the ignition switch if it does not function correctly.
Tools Required: Socket set, multimeter