my Ford Explorer Fifth Generation (2011-2019) is leaking coolant, what should I check?

Ford Explorer Fifth Generation (2011-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

554 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 2011-2019 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 working on the cooling system.
•Always wear safety glasses and gloves when handling coolant, as it is toxic.

Symptoms

•Coolant puddles under the vehicle
•Overheating engine temperature gauge
•Sweet smell of coolant in the cabin or engine bay
•Low coolant level warning light illuminated
•Steam rising from the engine compartment
•Engine performance issues (e.g., rough idle)

Diagnostic Steps

1
Inspect the coolant reservoir for cracks or leaks.
2
Check all hoses connected to the coolant system for signs of wear or damage.
3
Examine the radiator for leaks or corrosion.
4
Inspect the water pump for signs of leakage or failure.
5
Look for any leaks around the engine block and cylinder head gasket area.
6
Use a pressure tester to determine if there are any hidden leaks in the cooling system.

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

•Socket set
•Torque wrench
•Screwdrivers
•Coolant pressure tester
•Drain pan

Parts Required

•Coolant reservoir (if damaged)
•Hoses (as needed)
•Radiator (if damaged)
•Water pump (if leaking)

Related Faults

Share this solution

Comments

No comments yet

Be the first to share your thoughts

Back to Generation

Diagnostic Steps

1
Inspect the coolant reservoir for cracks or leaks.
2
Check all hoses connected to the coolant system for signs of wear or damage.
3
Examine the radiator for leaks or corrosion.
4
Inspect the water pump for signs of leakage or failure.
5
Look for any leaks around the engine block and cylinder head gasket area.
6
Use a pressure tester to determine if there are any hidden leaks in the cooling system.

Solution

1. Preparation

Gather necessary tools and parts for the repair.
Ensure the engine is cool and the vehicle is parked on a level surface.
Disconnect the battery to prevent electrical issues during repairs.

2. Locate and Repair Leaks

A. Coolant Reservoir

Inspect the reservoir for cracks.
Replace if damaged. Use a replacement part specific to the Ford Explorer.

B. Hoses

Check all hoses connected to the coolant system.
Replace any hoses that are cracked or worn using OEM or high-quality aftermarket parts.

C. Radiator

Inspect the radiator for signs of leaks or corrosion.
If leaks are found, replace the radiator. Make sure to drain the coolant before removal.

D. Water Pump

Check the water pump for any coolant leaks from the weep hole.
If leaking, remove the old water pump and install a new one. Torque bolts to manufacturer specifications (typically around 20-30 lb-ft).

E. Engine Block and Cylinder Head Gasket

If leaks are suspected around the engine block or head gasket, perform a visual inspection for any signs of coolant seeping.
If a head gasket is suspected, it may require a more extensive repair involving engine disassembly.

3. Refill and Bleed Cooling System

After repairs, refill the cooling system with the appropriate coolant mixture (usually a 50/50 mix of antifreeze and distilled water).
Bleed the cooling system by running the engine with the radiator cap off until the thermostat opens, allowing trapped air to escape.