2018 Dodge Challenger AC Isn't Working

Common Causes of AC Issues in Your 2018 Dodge Challenger and How to Fix Them

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Reviewed by
Devin Cabugcal
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 Dodge Challenger 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 diagnostic steps to take when the AC isn't working in a 2018 Dodge Challenger?

When your 2018 Dodge Challenger's AC isn't functioning properly, start by checking the thermostat settings to ensure they are correctly adjusted to a cool temperature, as incorrect settings can often be the simplest explanation for the issue. Next, inspect the air filters; dirty or clogged filters can significantly restrict airflow, so replacing them can enhance the AC's performance. It's also crucial to examine the refrigerant levels, as low levels can lead to system malfunctions. You can use a pressure gauge for this task or seek professional help if you're unsure. Additionally, look for any visible signs of leaks, such as oily residue around hoses or connections, which can indicate refrigerant loss. The AC compressor is another vital component to check; listen for unusual noises and visually inspect it for any signs of damage. Lastly, ensure that all electrical connections related to the AC system are secure and functioning properly, as faulty electrical components can hinder the system's operation. By following these steps, you can effectively diagnose and potentially resolve common AC issues in your Dodge Challenger.

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

When the air conditioning system in your 2018 Dodge Challenger fails to cool, it can be frustrating, but understanding the common problems can help you diagnose the issue effectively. One of the primary culprits is low refrigerant levels, which can occur due to leaks or insufficient charging, preventing the system from achieving optimal cooling. Another frequent issue is a faulty compressor; if the compressor isn't functioning correctly, it won't circulate the refrigerant, leading to inadequate cooling. Additionally, electrical problems such as blown fuses or damaged wiring can disrupt the AC's operation, so checking these components is essential. A clogged or leaking condenser can also hinder the system's performance, as it plays a crucial role in dissipating heat. Lastly, if you're experiencing reduced airflow from the vents, a malfunctioning blower motor may be to blame, as it is responsible for pushing air through the system. By systematically checking these areas, you can identify and address the root cause of your AC problems, making it possible to restore comfort to your driving experience.

How urgent is it to address the non-functioning AC in a 2018 Dodge Challenger?

Addressing a non-functioning AC in your 2018 Dodge Challenger is not just a matter of comfort; it is crucial for your safety and the vehicle's longevity. Driving without air conditioning in hot weather can lead to severe discomfort and health risks, particularly during long trips or in extreme heat. Moreover, a malfunctioning AC system may signal deeper issues within the vehicle's cooling system, which, if left unchecked, could result in overheating and significant engine damage. Additionally, a faulty AC can negatively impact your vehicle's overall performance, including fuel efficiency and engine function. Ignoring these symptoms can lead to escalating repair costs, as minor issues can develop into major problems over time. Therefore, it is essential to prioritize the repair of your AC system to maintain both your comfort and the health of your vehicle.

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2018 Dodge Challenger AC Not Working? Causes & Repairs