Mitsubishi Galant Is Overheating

Common Causes of Overheating in Your Mitsubishi Galant and How to Resolve Them Effectively

Find Repair Location
Reviewed by
Bo Fader
Written by RepairPal Car Genius
Updated January 14, 2025
0%
24% chance it's the
Thermostat
0%
41% chance it's the
Coolant leak (water pump, radiator, hose etc.)
0%
32% chance it's the
Radiator Fan
0%
3% chance it's
Something else
The most common reasons a Mitsubishi Galant is overheating are a coolant leak (water pump, radiator, hose etc.), the radiator fan, or a failed thermostat.
  • Thermostat: A faulty thermostat can cause the engine to overheat or run too cool by failing to regulate the flow of coolant properly.
  • Coolant leak (water pump, radiator, hose etc.): A coolant leak can occur due to a damaged hose, a failing water pump, or a compromised radiator, leading to loss of coolant and potential engine overheating.
  • Radiator Fan: A faulty radiator fan can lead to engine overheating due to insufficient airflow over the radiator.
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.

Troubleshooting Overheating Issues in a Mitsubishi Galant

When troubleshooting overheating issues in a Mitsubishi Galant, it's important to adopt a systematic diagnostic approach that prioritizes simpler fixes before delving into more complex problems. Begin by checking the coolant levels in both the radiator and the reservoir, as low coolant is a common culprit for overheating. If the coolant is adequate, inspect the thermostat to ensure it is functioning properly; a stuck thermostat can prevent coolant from circulating effectively. Next, examine the water pump for any signs of leaks or failure, as this component is crucial for maintaining coolant flow. Additionally, verify that the electric fans are operational, as they play a vital role in regulating engine temperature. If these initial checks do not reveal the issue, consider external factors such as driving conditions or ambient temperatures that may be contributing to the overheating. By following this structured approach, you can efficiently diagnose and address the overheating problem, helping to maintain your vehicle's performance and prevent potential engine damage.

What to Check When Your Mitsubishi Galant is Overheating?

When your Mitsubishi Galant is experiencing overheating, it's essential to understand the common problems that could be at play. One of the first areas to investigate is the coolant level; low coolant can lead to insufficient cooling, causing the engine to overheat. If the coolant is at an appropriate level, the next step is to examine the water pump, as a malfunctioning pump can prevent coolant circulation, leading to overheating. Additionally, the thermostat should be checked; if it fails to open, it can trap coolant in the engine, resulting in elevated temperatures. The radiator also warrants inspection, as blockages or leaks can hinder its ability to dissipate heat effectively. External conditions, such as extreme weather or stop-and-go traffic, can exacerbate overheating issues, so consider these factors as well. Furthermore, ensure that the electric fans are operational; these fans are crucial for maintaining optimal engine temperatures, especially when idling or in slow-moving traffic. Lastly, be vigilant for warning signs like dashboard alerts or steam from the hood, as these can indicate serious problems that require immediate attention. By systematically checking these common issues, you can effectively diagnose and address the overheating problem in your Mitsubishi Galant.

Why is My Mitsubishi Galant Overheating and What Should I Do?

When your Mitsubishi Galant begins to overheat, it is crucial to act swiftly to prevent severe damage to your engine. Overheating can lead to catastrophic failures, such as a blown head gasket, which not only compromises the vehicle's performance but can also result in costly repairs. Symptoms like smoke emanating from under the hood or a temperature gauge in the red zone signal that immediate action is necessary. Continuing to drive an overheating vehicle can exacerbate the problem, leading to engine failure and safety hazards on the road. To mitigate these risks, regularly check your coolant levels, inspect for leaks, and ensure that components like the thermostat and water pump are functioning correctly. By addressing these issues promptly, you can maintain your Galant's performance and longevity, ensuring a safer 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.