why does my Ford Explorer make a burning smell when running the heater?

Ford Explorer Fifth Generation (2011-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

509 words

Problem Statement

Learn how to diagnose and fix the burning smell from the heater in your Ford Explorer. 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 before working on electrical systems.
•Allow the engine to cool before inspecting the heating system.

Symptoms

•Burning smell coming from the vents
•Heater not producing warm air
•Unusual noises when the heater is activated
•Fog or smoke visible inside the vehicle
•Check engine light illuminated

Diagnostic Steps

1
Inspect the cabin air filter for debris or burning.
2
Check the heater core for leaks or damage.
3
Examine the heater hoses for signs of wear or leaks.
4
Inspect the blower motor for signs of overheating or damage.
5
Scan the vehicle's computer for diagnostic trouble codes (DTCs).

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

•Screwdriver set
•Pliers
•Socket set
•Torque wrench
•OBD-II scanner

Parts Required

•Cabin air filter
•Heater hoses (if necessary)
•Blower motor (if necessary)

Related Faults

Share this solution

Comments

No comments yet

Be the first to share your thoughts

Back to Generation

Solution

1. Preparation

Gather tools and parts required for the repair.
Disconnect the negative battery terminal to ensure safety.

2. Inspect and Replace the Cabin Air Filter

Locate the cabin air filter access panel, usually behind the glove compartment.
Remove the panel by unscrewing or unclipping it.
Take out the old cabin air filter and check for any burnt material or debris.
Install a new cabin air filter, ensuring it is oriented correctly.
Reattach the access panel.

3. Check Heater Core and Hoses

Locate the heater core hoses running from the engine to the firewall.
Inspect the hoses for leaks, cracks, or signs of overheating.
If hoses are damaged, replace them with new ones, ensuring proper hose clamps are used.
If the heater core is leaking, it may require replacement, which involves removing the dashboard.

4. Examine the Blower Motor

Locate the blower motor, usually found under the dashboard on the passenger side.
Remove any necessary panels to gain access.
Disconnect the blower motor's electrical connector.
Inspect for burnt wires or signs of overheating. If damaged, replace the blower motor.

5. Reassemble and Test

Reconnect any panels or components removed during the inspection.
Reconnect the negative battery terminal.
Start the vehicle and run the heater to check for the burning smell.