2017 Mitsubishi Outlander Sport AC Isn't Working

Common Causes of AC Malfunctions in Your 2017 Mitsubishi Outlander Sport 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 2017 Mitsubishi Outlander Sport 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 steps should I take to diagnose the AC issue in my 2017 Mitsubishi Outlander Sport?

To effectively diagnose the AC issue in your 2017 Mitsubishi Outlander Sport, start with the simplest checks before moving on to more complex diagnostics. Begin by inspecting the air filters, as dirty or clogged filters can significantly restrict airflow and diminish AC performance. Next, assess the refrigerant levels; low levels may indicate a leak in the system that needs addressing. Following this, examine the compressor to ensure it is functioning properly, as it plays a vital role in the cooling process. Look for any visible leaks in the AC system, as these can severely impact cooling efficiency. Additionally, test the thermostat to confirm it is operating correctly, since a malfunctioning thermostat can lead to inconsistent cooling. Don’t overlook the electrical components; issues with connections can also contribute to AC problems. If, after these checks, you are still unable to pinpoint the issue, it may be wise to consult a professional mechanic or AC specialist for further assistance. By systematically following these steps, you can effectively diagnose and potentially resolve the AC issues in your vehicle.

What are the common problems that could cause the AC system to stop working in a 2017 Mitsubishi Outlander Sport?

When your 2017 Mitsubishi Outlander Sport's AC system fails to cool, it's crucial to understand the common problems that could be at play. One of the first things to check is the refrigerant level; low refrigerant can significantly hinder the system's ability to cool the air. If the refrigerant is adequate, the next step is to inspect the compressor, as a faulty compressor can prevent the system from functioning altogether. Additionally, electrical issues such as blown fuses or damaged wiring can disrupt the AC's operation, so examining these components is essential. Another area to consider is the condenser; if it is clogged or leaking, it can severely impact cooling performance. Lastly, ensure that the blower motor is functioning correctly, as a malfunction here can lead to poor airflow from the vents. By systematically checking these common issues, you can diagnose the problem more effectively and determine whether a DIY fix is possible or if professional assistance is needed.

How urgent is it to address the non-functioning AC in my 2017 Mitsubishi Outlander Sport?

When your 2017 Mitsubishi Outlander Sport's air conditioning system fails, the urgency to address the issue cannot be overstated. Driving without a functioning AC in sweltering heat can lead to severe discomfort and even health risks, particularly during the peak summer months. The inability to regulate cabin temperature not only detracts from your driving experience but can also distract you, making it harder to focus on the road. Moreover, a malfunctioning AC may indicate deeper problems within the vehicle's cooling system, which could escalate into more serious and costly repairs if left unattended. By prioritizing the repair of your AC, you not only enhance your comfort and safety but also potentially save yourself from incurring higher repair costs in the future. Therefore, it is advisable to address any AC issues promptly to ensure a pleasant and safe driving experience.

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