how to check for coolant leaks in Ford Explorer Fifth Generation (2011-2019)

Ford Explorer Fifth Generation (2011-2019)

Error Codes

1-2 hours

Time

medium

Difficulty

high

Severity

3 min read

597 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 check for coolant leaks in Ford Explorer (2011-2019). Step-by-step guide with diagnostic procedures and repair instructions.

Affected Component

Cooling System

Estimated Time

1-2 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Allow the engine to cool completely before working on the cooling system to avoid burns.

Symptoms

•Low coolant level in the reservoir
•Sweet smell of coolant inside or outside the vehicle
•Puddles or stains under the vehicle
•Overheating engine
•Steam rising from the engine bay
•Coolant warning light illuminated on the dashboard

Diagnostic Steps

1
Visual Inspection: Look for any visible signs of coolant leaks around the radiator, hoses, water pump, and engine block.
2
Check Coolant Reservoir: Inspect the coolant reservoir for cracks or damage and ensure it is at the proper level.
3
Pressure Test: Use a cooling system pressure tester to pressurize the system and observe for leaks.
4
Dye Test: Add UV dye to the coolant and use a UV light to check for leaks that may not be visible to the naked eye.
5
Inspect Hose Connections: Examine all hose clamps and connections for signs of wear or looseness that could lead to leaks.
6
Look for Signs of Corrosion: Check for corrosion around the radiator and engine components, which may indicate a coolant leak.

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

•Cooling system pressure tester
•UV dye
•UV light
•Screwdriver set
•Hose clamp pliers
•Catch pan

Parts Required

•Replacement hoses (if damaged)
•Replacement clamps (if worn)

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Diagnostic Steps

1
Visual Inspection: Look for any visible signs of coolant leaks around the radiator, hoses, water pump, and engine block.
2
Check Coolant Reservoir: Inspect the coolant reservoir for cracks or damage and ensure it is at the proper level.
3
Pressure Test: Use a cooling system pressure tester to pressurize the system and observe for leaks.
4
Dye Test: Add UV dye to the coolant and use a UV light to check for leaks that may not be visible to the naked eye.
5
Inspect Hose Connections: Examine all hose clamps and connections for signs of wear or looseness that could lead to leaks.
6
Look for Signs of Corrosion: Check for corrosion around the radiator and engine components, which may indicate a coolant leak.

Solution

1. Preparation

Tools Required: Cooling system pressure tester, UV dye, UV light, screwdriver set, hose clamp pliers, catch pan
Safety Warnings: Allow the engine to cool completely before working on the cooling system to avoid burns.

2. Perform Visual Inspection

Open the hood and visually inspect the entire cooling system, including the radiator, hoses, and connections for any signs of coolant.
Look for signs of wetness or discoloration around these areas.

3. Check Coolant Reservoir

Locate the coolant reservoir and check the coolant level.
If low, inspect for leaks and refill with the appropriate type of coolant.

4. Conduct a Pressure Test

Attach the cooling system pressure tester to the radiator fill neck.
Pump the tester to the recommended pressure (usually around 15-20 PSI for most systems) and observe for any signs of coolant leakage.
If leaks are found, note their location for repairs.

5. Perform Dye Test

If no leaks are detected, add the appropriate UV dye to the coolant.
Let the vehicle run for a while then use a UV light to check for leaks, looking for any bright spots where the dye is visible.

6. Inspect and Tighten Hose Connections

Check all hose clamps and connections for tightness.
Use hose clamp pliers to tighten any loose clamps.
Replace any damaged hoses with new ones as necessary.