Ford Explorer Sixth Generation (2020-present) coolant leaking under the car

Ford Explorer Sixth Generation (2020-present)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

567 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 coolant leaks in the 2020-present Ford Explorer. Step-by-step guide with diagnostic procedures and repair instructions.

Affected Component

Cooling System

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Allow the engine to cool completely before opening the cooling system.
•Always dispose of used coolant properly, as it is toxic to pets and wildlife.

Symptoms

•Coolant puddles forming under the engine area
•Temperature gauge reading higher than normal
•Sweet smell of coolant inside or outside the vehicle
•Overheating engine warning light illuminated
•Low coolant warning light on the dashboard

Diagnostic Steps

1
Inspect the ground beneath the vehicle to confirm the presence and color of the fluid.
2
Check the coolant reservoir level and inspect for any signs of coolant contamination.
3
Use a pressure tester to pressurize the cooling system and identify the leak source.
4
Visually inspect hoses, connections, and the radiator for cracks or damage.
5
Examine the water pump for signs of leakage or corrosion.
6
Check the engine block and cylinder head for any signs of coolant seeping.

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

•Pressure tester
•Hose clamp pliers
•Socket set
•Torque wrench
•Gasket scraper

Parts Required

•Replacement hoses
•Water pump
•Coolant

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Diagnostic Steps

1
Inspect the ground beneath the vehicle to confirm the presence and color of the fluid.
2
Check the coolant reservoir level and inspect for any signs of coolant contamination.
3
Use a pressure tester to pressurize the cooling system and identify the leak source.
4
Visually inspect hoses, connections, and the radiator for cracks or damage.
5
Examine the water pump for signs of leakage or corrosion.
6
Check the engine block and cylinder head for any signs of coolant seeping.

Solution

1. Preparation

Gather all necessary tools and parts for the repair.
Ensure the engine is cool and disconnect the negative battery terminal to avoid electrical issues.

2. Locate the Leak

Use the pressure tester to pressurize the cooling system. Observe where coolant is leaking from.
Mark the area of the leak for reference.

3. Replace Damaged Hoses

Tools Required: Hose clamp pliers, socket set.
Loosen the hose clamps using the hose clamp pliers and carefully remove the damaged hose.
Install the new hose by sliding it onto the fitting and securing it with the hose clamp. Ensure it is properly seated.

4. Repair or Replace the Water Pump

Tools Required: Socket set, torque wrench, gasket scraper.
Drain the coolant from the system into a suitable container.
Remove the serpentine belt by loosening the tensioner pulley.
Unbolt the water pump from the engine block and carefully remove it.
Clean the mounting surface on the engine and install a new gasket if required.
Install the new water pump, torque bolts to manufacturer specifications (usually around 18-25 ft-lbs).
Reattach the serpentine belt.

5. Refill Cooling System

Refill the cooling system with the appropriate type of coolant as specified in the owner’s manual (typically a 50/50 mix of antifreeze and distilled water).
Bleed the cooling system to remove any trapped air by running the engine with the radiator cap off until the thermostat opens.

6. Final Assembly

Reconnect the negative battery terminal.
Check all connections and hoses to ensure they are secure.