my Ford Explorer makes a strange burning smell when I turn on the AC, what could it be?

Solution

1. Preparation

• Gather necessary tools and parts.
• Disconnect the battery to avoid electrical hazards.
• Ensure the vehicle is parked on a level surface with the engine off.

2. Inspect AC Compressor

• Tools Required: Socket set, ratchet
• Remove any covers obstructing access to the AC compressor.
• Check for physical damage or signs of overheating.
• If damaged, proceed to replace the compressor.

3. Check and Replace AC Belt

• Tools Required: Wrench set, torque wrench
• Inspect the AC belt for signs of wear.
• If frayed or loose, remove the old belt by loosening the tensioner.
• Install a new belt ensuring proper tension according to the manufacturer’s specifications.

4. Replace Cabin Air Filter

• Tools Required: None specifically
• Locate the cabin air filter compartment, usually behind the glove box.
• Remove the old filter and check for any burning debris.
• Install a new cabin air filter ensuring it is seated correctly.

5. Recharge AC System (if necessary)

• Tools Required: Refrigerant recovery kit, manifold gauge set
• Check refrigerant levels; if low, evacuate the system and recharge with the appropriate refrigerant type.
• Monitor system pressure to ensure it falls within the specified range.