2018 Ford Explorer AC Isn't Working

Common Causes of AC Malfunctions in Your 2018 Ford Explorer and How to Fix Them

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Reviewed by
Bo Fader
Written by RepairPal Car Genius
Updated January 14, 2025
0%
37% chance it's the
Refrigerant Leak
0%
21% chance it's the
Climate Control Electrical Issue
0%
12% chance it's the
AC Compressor
0%
30% chance it's
Something else
The most common reasons a 2018 Ford Explorer AC isn't working are a refrigerant leak, an electrical climate control issue, or a problem with the air conditioning compressor.
  • Refrigerant Leak: A refrigerant leak can occur due to damaged hoses, seals, or connections, resulting in decreased cooling efficiency in the air conditioning system.
  • Climate Control Electrical Issue: A faulty climate control module or a blown fuse could be causing the electrical issues in the climate control system.
  • AC Compressor: A faulty AC compressor may be due to a lack of lubrication, electrical issues, or internal mechanical failure, resulting in inadequate cooling performance.
Proper diagnosis will determine the exact cause of your symptom, saving you money on unnecessary repairs. The diagnostic experts at RepairPal Certified shops have the right tools and experience to solve any symptom.

What are the initial steps to diagnose the AC issue in a 2018 Ford Explorer?

To effectively diagnose the AC issue in your 2018 Ford Explorer, start by checking the air filters, as clean filters are crucial for optimal airflow and cooling performance. Next, inspect the refrigerant levels; low refrigerant can significantly impact the system's ability to cool. Following this, examine the AC compressor for any signs of damage or leaks, as these can hinder its operation. Additionally, test the thermostat to ensure it is accurately regulating the vehicle's temperature. Finally, look for any visible leaks in the AC system, particularly around hose connections and the compressor, as these can lead to refrigerant loss. By systematically addressing these areas, you can pinpoint the problem and determine the necessary repairs to restore your AC's functionality.

What are the common problems that could cause the AC to stop working in a 2018 Ford Explorer?

When troubleshooting the air conditioning system in a 2018 Ford Explorer, it's essential to understand the common problems that may lead to a malfunction. One of the primary issues is low refrigerant levels, which can significantly hinder the system's ability to cool the air effectively. If the refrigerant is low, it may indicate a leak in the system that needs to be addressed. Another frequent culprit is a faulty compressor; if the compressor isn't functioning properly, it won't circulate the refrigerant, resulting in warm air blowing from the vents. Additionally, electrical issues such as blown fuses or damaged wiring can disrupt the AC's operation, preventing it from turning on or functioning correctly. A clogged or leaking condenser can also impede the cooling process, as it plays a crucial role in dissipating heat from the refrigerant. Lastly, a malfunctioning blower motor can lead to inadequate airflow, making it seem like the AC isn't working even if the cooling system is operational. By identifying and addressing these common problems, DIY enthusiasts can effectively diagnose and potentially resolve AC issues in their Ford Explorer.

How urgent is it to repair the non-functioning AC in a 2018 Ford Explorer?

Repairing the non-functioning AC in your 2018 Ford Explorer should be treated as a priority, especially considering the various implications of a malfunctioning system. First and foremost, a working AC is essential for maintaining comfort during hot weather, which can significantly enhance your driving experience. Beyond comfort, safety is a critical factor; a faulty AC can lead to distractions and discomfort, particularly in extreme heat, which may impair your focus on the road. Additionally, keeping your AC in good working order can positively influence your vehicle's resale value, making it a wise investment for the future. Lastly, delaying repairs can result in more severe issues that may require costly fixes down the line. Therefore, addressing AC problems promptly is not just about immediate comfort; it’s about ensuring your safety, preserving your vehicle's value, and preventing further damage.

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