2012 INFINITI FX35 Is Overheating

Common Causes of Overheating in Your 2012 INFINITI FX35 and How to Resolve Them

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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 2012 INFINITI FX35 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.

What are the initial diagnostic steps to take for an overheating 2012 INFINITI FX35?

When faced with an overheating 2012 INFINITI FX35, it's essential to adopt a systematic diagnostic approach to identify the root cause effectively. Start by checking the coolant level in the radiator, as insufficient coolant can lead to overheating. If the coolant is low, refill it and monitor for any leaks. Next, inspect the cooling system for visible leaks in hoses, the radiator, or the water pump, as these can significantly impact coolant levels. Don’t overlook the radiator cap; a damaged cap can disrupt the system's pressure, leading to overheating. Additionally, verify that the cooling fans are operational, as they are crucial for maintaining airflow through the radiator. A malfunctioning thermostat can also be a culprit, so ensure it opens and closes as it should. Lastly, examine the water pump for any signs of damage or leaks, as a faulty pump can hinder coolant circulation. By following these steps, you can effectively diagnose and address the overheating issue in your vehicle, potentially saving on costly repairs.

What are the common problems that could cause a 2012 INFINITI FX35 to overheat?

When dealing with overheating issues in a 2012 INFINITI FX35, it's crucial to understand the common problems that may be at play. One of the first things to check is the coolant level; low coolant can severely hinder the engine's ability to maintain optimal temperatures. If the coolant is at the right level, inspect the cooling system for leaks, as any loss of coolant from the radiator, hoses, or water pump can lead to overheating. Another potential culprit is a faulty thermostat, which may fail to regulate the engine temperature properly. Additionally, a clogged radiator can restrict coolant flow, exacerbating overheating issues. It's also important to consider the cooling fan; if the fan motor or relay is malfunctioning, it may not provide sufficient airflow through the radiator. Lastly, a failing water pump can impede coolant circulation, leading to engine overheating. By systematically checking these components, DIYers can effectively diagnose and address the overheating problems in their INFINITI FX35, ensuring the vehicle runs smoothly and efficiently.

What immediate steps should be taken to address the overheating issue in a 2012 INFINITI FX35 to prevent potential engine damage and ensure safety?

When addressing an overheating issue in your 2012 INFINITI FX35, it is essential to recognize the urgency of the situation to prevent significant engine damage and ensure your safety. The first critical step is to pull over to a safe area as soon as you notice the temperature gauge rising or steam escaping from the engine. This immediate action can help mitigate further damage. Once parked, turn off the engine to allow it to cool down, which is vital in preventing additional overheating. After the engine has cooled, carefully check the coolant level in the reservoir; if it appears low, add coolant slowly to avoid burns, ensuring the engine is cool before opening the radiator cap. Additionally, inspect the radiator and hoses for any visible leaks or damage, as these issues can worsen the overheating problem. It is crucial to allow the engine to cool completely before attempting to drive again. If the overheating continues or if you are unsure of the cause, seeking assistance from a mechanic is highly advisable. Neglecting these symptoms can lead to severe engine damage, making it imperative to address the issue promptly.

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2012 INFINITI FX35 Overheating Causes & Repair Costs