why does my Ford Explorer Fifth Generation (2011-2019) have condensation on the inside of the window...

Ford Explorer Fifth Generation (2011-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

501 words

Problem Statement

Learn how to diagnose and fix condensation inside windows of Ford Explorer (2011-2019). Step-by-step guide with diagnostic procedures and repair instructions.

Affected Component

HVAC

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery if working on the HVAC system to prevent electrical shock.
•Allow the engine to cool before inspecting the heater core.

Symptoms

•Visible moisture or fog on the interior glass surfaces
•Dampness on upholstery or carpets
•Musty odor inside the vehicle
•Water pooling in footwells
•Increased fogging of windows during cold weather

Diagnostic Steps

1
Inspect for water leaks by checking door seals, window seals, and sunroof drainage.
2
Examine the cabin air filter for obstructions or moisture.
3
Check for signs of coolant leaks in the heater core.
4
Use a moisture meter to assess humidity levels inside the vehicle.
5
Inspect for any signs of mold or mildew within the cabin.
6
Test the operation of the HVAC system, ensuring proper airflow and defrost function.

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

•Vacuum
•Towels
•Moisture meter
•Screwdriver set
•Compressed air

Parts Required

•Cabin air filter
•Door/window seals (if needed)

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Diagnostic Steps

1
Inspect for water leaks by checking door seals, window seals, and sunroof drainage.
2
Examine the cabin air filter for obstructions or moisture.
3
Check for signs of coolant leaks in the heater core.
4
Use a moisture meter to assess humidity levels inside the vehicle.
5
Inspect for any signs of mold or mildew within the cabin.
6
Test the operation of the HVAC system, ensuring proper airflow and defrost function.

Solution

1. Preparation

Gather tools and materials: vacuum, towels, moisture meter, new cabin air filter, and sealant if necessary.
Ensure the vehicle is parked in a well-ventilated area.

2. Inspect and Repair Seals

Inspect Door and Window Seals:
- Check for cracks, tears, or deterioration.
- Clean the seals with a mild soap solution, then dry thoroughly.
- Replace seals if damaged.

3. Drainage System Maintenance

Check Sunroof Drains:
- Locate the drainage tubes for the sunroof.
- Clear any blockages by using compressed air or a flexible cleaning tool.

4. Cabin Air Filter Replacement

Remove and Replace Cabin Air Filter:
- Locate the cabin air filter compartment (usually behind the glove box).
- Remove the old filter and inspect for moisture.
- Install a new, dry cabin air filter.

5. HVAC System Inspection

Test and Clean HVAC System:
- Run the HVAC system on high with the windows down to reduce humidity.
- Inspect and clean the evaporator core for any mold or dirt buildup.

6. Address Any Coolant Leaks

Check Heater Core:
- Inspect for coolant leaks inside the vehicle, particularly under the dashboard.
- If coolant is leaking, replace the heater core or repair the leak as necessary.