2018 Dodge Charger AC Isn't Working

Common Causes of AC Malfunctions in Your 2018 Dodge Charger 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 Dodge Charger 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 Dodge Charger?

To effectively diagnose an AC issue in a 2018 Dodge Charger, start by checking the air filters, as dirty or clogged filters can significantly hinder airflow and reduce the system's efficiency. Next, inspect the refrigerant levels; low levels may suggest a leak, which is crucial to address for optimal cooling performance. Following this, examine the AC compressor, as a malfunctioning compressor can lead to inadequate or nonexistent cooling. Additionally, testing the thermostat is essential, as a faulty thermostat can disrupt the entire AC system's functionality. Finally, look for any visible leaks in the AC system, such as oily residue, which can indicate refrigerant loss. By systematically addressing these areas, you can effectively narrow down the source of the AC issue and take the necessary steps to resolve it.

What are the common causes of AC failure in a 2018 Dodge Charger?

When diagnosing AC failure in a 2018 Dodge Charger, it's essential to understand the common problems that can arise within the system. One prevalent issue is refrigerant leaks, which can stem from damaged seals or components, leading to insufficient cooling. Additionally, electrical problems, such as faulty fuses or wiring, can disrupt the AC's functionality, making it crucial to check these components during troubleshooting. Another significant factor is compressor failure; if the compressor is not operating correctly, the entire cooling process is compromised. Clogged or blocked condensers can also impede airflow, further exacerbating cooling issues. Lastly, ensure that the cooling fans are functioning properly, as they play a vital role in dissipating heat from the condenser. By being aware of these common causes, DIYers can take proactive steps to maintain their vehicle's AC system and address any issues before they escalate.

How urgent is it to address the AC failure in my 2018 Dodge Charger?

When your 2018 Dodge Charger experiences an AC failure, addressing the issue promptly is crucial for both your comfort and safety. Driving without a functioning air conditioning system in hot weather can lead to severe discomfort and even health risks, such as heat exhaustion. Moreover, a malfunctioning AC may indicate underlying problems within the vehicle's cooling system, which, if left unresolved, could escalate into more serious issues like engine overheating and damage. By tackling the AC failure early, you not only enhance your driving experience but also prevent further damage to the system, ultimately saving on costly repairs. Additionally, a well-functioning AC is essential for maintaining visibility in humid or cold conditions, as it aids in defogging the windshield. Therefore, it is imperative to prioritize the repair of your AC system to ensure a safe and comfortable driving environment.

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