1998 Mitsubishi Galant AC Isn't Working

Common Causes of AC Failure in Your 1998 Mitsubishi Galant and How to Fix Them

Find Repair Location
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 1998 Mitsubishi Galant 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 1998 Mitsubishi Galant?

When diagnosing an AC issue in a 1998 Mitsubishi Galant, it's essential to adopt a systematic diagnostic approach. Begin by checking the AC controls to ensure they are set correctly, as improper settings can often be the root of the problem. Next, inspect the AC compressor to see if it engages when the system is activated; a lack of engagement may indicate a malfunction. Look for any visible leaks around the AC components, as oily residue can signal refrigerant loss. It's also crucial to check the refrigerant level using a pressure gauge, since low levels can lead to inadequate cooling. While the AC is running, observe the airflow and temperature from the vents; inconsistent performance can highlight underlying issues. Finally, listen for any unusual noises, such as squealing or grinding, which may suggest mechanical problems. By following these steps, you can effectively narrow down the potential causes of AC issues in your vehicle, making it easier to address the problem.

What are the common problems that could cause the AC to stop working in a 1998 Mitsubishi Galant?

When troubleshooting the air conditioning system in a 1998 Mitsubishi Galant, it's essential to understand the common problems that could lead to its failure. One prevalent issue is a refrigerant leak, which can occur due to damaged components or seals, resulting in insufficient cooling. Another critical component to check is the compressor; if it is faulty, the system will struggle to pressurize the refrigerant, leading to a lack of cool air. Additionally, electrical issues such as blown fuses or faulty wiring can disrupt the AC's functionality, so inspecting these elements is crucial. A clogged or blocked condenser can also impede airflow, preventing effective cooling, often caused by dirt and debris accumulation. Lastly, a malfunctioning thermostat may fail to signal the system to cool properly, further complicating the issue. By identifying and addressing these common problems, DIY enthusiasts can effectively restore the AC system's functionality in their Mitsubishi Galant.

How urgent is it to repair the non-functioning AC in a 1998 Mitsubishi Galant?

When it comes to the urgency of repairing a non-functioning AC in a 1998 Mitsubishi Galant, several critical factors underscore the need for immediate attention. First and foremost, the comfort of both the driver and passengers is significantly compromised without a functioning AC, especially during sweltering summer months or on long road trips. High interior temperatures can lead to discomfort and even distract the driver, posing safety risks. Additionally, for those who frequently transport vulnerable individuals, such as children or the elderly, the absence of a working AC can escalate the risk of heat-related illnesses. Beyond comfort and safety, neglecting AC repairs can adversely affect the vehicle's resale value; potential buyers are often deterred by the prospect of costly repairs, which can lead to a lower selling price. Furthermore, a malfunctioning AC system may signal deeper mechanical issues within the vehicle, potentially leading to more extensive and expensive repairs if left unaddressed. Therefore, for DIY enthusiasts, it is crucial to prioritize AC repairs not only for immediate comfort and safety but also to maintain the vehicle's overall health and value. Taking action sooner rather than later can save time, money, and ensure a more pleasant driving experience.

You’ve got options with RepairPal

Whether you need a more accurate auto repair estimate or help finding a reputable shop in your area, we’ve got you covered.

1998 Mitsubishi Galant AC Issues: Causes & Repair Costs