2019 Ram 1500 Classic AC Isn't Working

Common Causes of AC Issues in Your 2019 Ram 1500 Classic and How to Fix Them

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Reviewed by
Andrew Hajjar
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 2019 Ram 1500 Classic 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 2019 Ram 1500 Classic?

When your 2019 Ram 1500 Classic's AC isn't functioning, start by checking the thermostat settings to ensure they are correctly adjusted to a cool temperature, as this is often a simple oversight. Next, inspect the air filters; dirty or clogged filters can significantly hinder airflow, so replacing them can enhance performance. After that, examine the refrigerant levels using a pressure gauge; low levels can lead to inadequate cooling, and a refill may be necessary. It's also crucial to look for any visible leaks in the AC system, as these can cause refrigerant loss and affect cooling efficiency. Additionally, test the compressor to confirm it engages when the AC is activated; if it doesn't, repairs or replacement may be required. Lastly, check the electrical connections, including fuses and relays, since faulty wiring can prevent the AC from operating properly. If these steps do not resolve the issue, seeking assistance from a professional mechanic or HVAC technician is advisable for a thorough diagnosis and repair. By following this structured approach, you can effectively troubleshoot and potentially resolve common AC issues in your vehicle.

What are the common problems that could cause the AC to stop working in a 2019 Ram 1500 Classic?

When the air conditioning system in your 2019 Ram 1500 Classic ceases to function, it can be frustrating, but understanding the common problems can help you diagnose the issue. One of the primary culprits is low refrigerant levels, which can hinder the system's ability to cool the air effectively. If the refrigerant is low, it may indicate a leak that needs to be addressed. Another potential issue is a faulty compressor; if the compressor is not operating correctly, it can prevent the system from circulating 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 impede airflow and cooling efficiency, while malfunctioning cooling fans may result in insufficient airflow through the system. By systematically checking these common issues, you can identify the root cause of your AC problems and take the necessary steps to restore comfort to your vehicle.

How urgent is it to repair the non-functioning AC in a 2019 Ram 1500 Classic?

When it comes to repairing the non-functioning AC in your 2019 Ram 1500 Classic, urgency is a key factor to consider. A malfunctioning air conditioning system can significantly impact your comfort during hot weather, making long drives unbearable and distracting you from the road. This distraction can pose safety risks, especially in extreme heat conditions where maintaining focus is crucial. Additionally, neglecting AC repairs can lead to more severe issues down the line, potentially resulting in costly repairs that could have been avoided with timely attention. Furthermore, a well-functioning AC system is an attractive feature for potential buyers, and failing to address this issue could diminish your vehicle's resale value. Therefore, it is advisable to prioritize the repair of your AC system not only for immediate comfort and safety but also to protect your investment in the long run.

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Troubleshooting AC Issues in 2019 Ram 1500 Classic