why does my Ford Explorer have condensation inside the windshield

Ford Explorer Fifth Generation (2011-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

481 words

Problem Statement

Learn how to diagnose and fix condensation inside the windshield of your Ford Explorer. Step-by-step guide with symptoms, diagnostic steps, and repair instructions.

Affected Component

HVAC

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical systems.

Symptoms

•Foggy or misted windshield interior
•Difficulty seeing through the windshield
•Excess moisture on interior surfaces
•Possible musty odor inside the cabin
•Water pooling in footwells (if related to leaks)

Diagnostic Steps

1
Inspect the cabin air filter for dirt or blockages.
2
Check for leaks in door seals or windshield seals.
3
Test the vehicle's HVAC system for proper operation.
4
Verify the operation of the defroster settings.
5
Look for any signs of coolant leaks in the cabin.
6
Examine the drainage channels around the sunroof (if equipped).

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

•Flathead screwdriver
•Trim removal tool
•Coolant dye kit
•UV light (if using dye)

Parts Required

•Cabin air filter
•Weatherstripping (if replacement is necessary)

Related Faults

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Diagnostic Steps

1
Inspect the cabin air filter for dirt or blockages.
2
Check for leaks in door seals or windshield seals.
3
Test the vehicle's HVAC system for proper operation.
4
Verify the operation of the defroster settings.
5
Look for any signs of coolant leaks in the cabin.
6
Examine the drainage channels around the sunroof (if equipped).

Solution

1. Preparation

Gather necessary tools and parts.
Park the vehicle on a level surface and ensure the engine is off.
Disconnect the battery if working with electrical components.

2. Inspect and Replace Cabin Air Filter

Tools Required: Flathead screwdriver, new cabin air filter.
Remove the glove compartment by loosening screws and detaching it from the hinges.
Locate the cabin air filter housing, unclip it, and remove the old filter.
Install the new cabin air filter, ensuring it is oriented correctly.
Reassemble the glove compartment.

3. Check and Repair Weatherstripping

Tools Required: Trim removal tool, silicone sealant (if necessary).
Inspect the weatherstripping around doors and the windshield for tears or wear.
Replace any damaged weatherstripping to ensure a proper seal.
Apply silicone sealant to any gaps found in the windshield seal.

4. Test HVAC System

Tools Required: None.
Start the vehicle and turn on the HVAC system.
Set the system to defrost mode and check airflow from the vents.
Listen for unusual noises indicating problems with the blower motor.

5. Inspect for Coolant Leaks

Tools Required: Coolant dye kit, UV light (if using dye).
Check the carpet and floor mats for dampness, indicating possible coolant leaks.
If fluid is present, use a coolant dye to trace the source of the leak.
Repair any identified leaks in the heater core or related hoses.