why is my Ford Explorer Sixth Generation (2020-present) leaking fluid under the engine

Ford Explorer Sixth Generation (2020-present)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

599 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 fluid leaks under the engine of your 2020-2023 Ford Explorer. Step-by-step guide with diagnostic procedures and repair instructions.

Affected Component

Engine

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical components.
•Allow the engine to cool completely before working on the cooling system.

Symptoms

•Fluid puddles forming under the engine area
•Unusual smell from the leaking fluid (e.g., sweet, oily, or burnt)
•Warning lights on the dashboard, such as low oil pressure or coolant temperature
•Engine overheating
•Reduced performance or stalling

Diagnostic Steps

1
Inspect the type of fluid leaking (e.g., oil, coolant, transmission fluid) to narrow down the source.
2
Use an OBD-II scanner to check for any related trouble codes.
3
Visually inspect the engine bay and undercarriage for signs of damage or wear on hoses, gaskets, and seals.
4
Check fluid levels for oil, coolant, and transmission fluid.
5
Conduct a pressure test on the cooling system to identify leaks.
6
Look for signs of oil leaks around the oil pan, valve cover, and oil filter.

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
•Torque wrench
•Screwdrivers
•Fluid catch pan
•Coolant pressure tester

Parts Required

•Replacement gaskets or seals (specific to the leak source)
•New hoses (if applicable)
•New oil filter (if oil leak is from the filter)
•Transmission fluid or coolant (as needed)

Related Faults

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Diagnostic Steps

1
Inspect the type of fluid leaking (e.g., oil, coolant, transmission fluid) to narrow down the source.
2
Use an OBD-II scanner to check for any related trouble codes.
3
Visually inspect the engine bay and undercarriage for signs of damage or wear on hoses, gaskets, and seals.
4
Check fluid levels for oil, coolant, and transmission fluid.
5
Conduct a pressure test on the cooling system to identify leaks.
6
Look for signs of oil leaks around the oil pan, valve cover, and oil filter.

Solution

1. Preparation

Gather tools and parts needed for the repair.
Make sure the engine is cool and the vehicle is parked on a level surface.
Disconnect the battery to ensure safety.

2. Identify and Repair the Leak

A. For Oil Leaks:

Locate the Source: Inspect areas around the oil filter, oil pan, and valve covers for oil residue.
Replace Gaskets/Seals:
- Remove the affected component (e.g., oil filter, valve cover).
- Clean the mating surfaces.
- Install new gaskets or seals.
- Reinstall the component and tighten to manufacturer torque specifications (typically 10-15 ft-lbs for valve covers).

B. For Coolant Leaks:

Locate the Leak: Inspect hoses, the radiator, and the water pump for leaks.
Replace Damaged Components:
- If a hose is leaking, loosen the clamps and replace the hose.
- If the radiator or water pump is leaking, drain the coolant, remove the component, and install a new one.
- Refill the cooling system with the appropriate coolant type (Motorcraft Specialty Green or equivalent).

C. For Transmission Fluid Leaks:

Locate the Leak: Check the transmission pan and lines for leaks.
Repair or Replace:
- If the pan is leaking, remove the pan, clean it, and replace the gasket.
- Torque bolts to manufacturer specifications (typically around 10-12 ft-lbs).

3. Refill Fluids

After repairs, refill the necessary fluids (engine oil, coolant, transmission fluid) to the appropriate levels.