why does my Ford Explorer Sixth Generation (2020-present) keep overheating during summer

Ford Explorer Sixth Generation (2020-present)

Error Codes

3-5 hours

Time

medium

Difficulty

high

Severity

3 min read

594 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 overheating issues in Ford Explorer (2020-present). Step-by-step guide with diagnostic procedures and repair instructions.

Affected Component

Cooling System

Estimated Time

3-5 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 radiator or working on the cooling system.

Symptoms

•Engine temperature gauge frequently rising above normal levels
•Coolant warning light illuminated on the dashboard
•Steam or coolant leaking from under the hood
•Engine performance issues or stalling
•Unusual smells, such as burning coolant or oil

Diagnostic Steps

1
Check coolant level by inspecting the coolant reservoir for proper fluid levels when the engine is cold.
2
Scan for error codes using an OBD-II scanner to check for any diagnostic trouble codes (DTCs) related to the cooling system.
3
Inspect radiator and hoses for signs of leaks, cracks, or blockages.
4
Test thermostat operation by removing it and testing it in boiling water to ensure it opens and closes at the correct temperature.
5
Examine water pump functionality for leaks or unusual noise, indicating failure.
6
Check radiator fan operation to ensure it is functioning properly when the engine reaches operating temperature.

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
•Multimeter
•Drain pan
•Funnel

Parts Required

•Coolant
•Thermostat
•Water pump (if defective)
•Radiator fan (if defective)

Related Faults

Share this solution

Comments

No comments yet

Be the first to share your thoughts

Back to Generation

Diagnostic Steps

1
Check coolant level by inspecting the coolant reservoir for proper fluid levels when the engine is cold.
2
Scan for error codes using an OBD-II scanner to check for any diagnostic trouble codes (DTCs) related to the cooling system.
3
Inspect radiator and hoses for signs of leaks, cracks, or blockages.
4
Test thermostat operation by removing it and testing it in boiling water to ensure it opens and closes at the correct temperature.
5
Examine water pump functionality for leaks or unusual noise, indicating failure.
6
Check radiator fan operation to ensure it is functioning properly when the engine reaches operating temperature.

Solution

1. Preparation

Gather necessary tools and parts.
Ensure the engine is cool to avoid burns.

2. Replace Coolant

Tools Required: Funnel, drain pan
Steps:
1. Drain the existing coolant from the radiator by opening the drain valve.
2. Flush the cooling system with water to remove debris.
3. Refill with the appropriate type of coolant mixed with water as per manufacturer specifications.

3. Replace Thermostat

Tools Required: Socket set, gasket scraper, new thermostat, gasket sealant
Steps:
1. Locate the thermostat housing and remove the bolts using a socket set.
2. Carefully remove the old thermostat and clean the mating surfaces.
3. Install the new thermostat and apply gasket sealant as necessary.
4. Reattach the thermostat housing and torque the bolts to the manufacturer’s specifications.

4. Replace Water Pump (if necessary)

Tools Required: Socket set, wrench set, gasket scraper, new water pump, gasket
Steps:
1. Disconnect the battery to ensure safety.
2. Remove the serpentine belt from the water pump pulley.
3. Disconnect any hoses attached to the water pump.
4. Remove the water pump mounting bolts and take out the old pump.
5. Clean the mounting surface and install the new water pump with a new gasket.
6. Reconnect hoses and serpentine belt, then reconnect the battery.

5. Inspect and Repair Radiator Fan

Tools Required: Multimeter, socket set
Steps:
1. Test the radiator fan motor with a multimeter to ensure it receives power.
2. If the fan is non-functional, remove it and replace it with a new fan assembly.
3. Reinstall the fan and reconnect the wiring.