INFINITI FX45 Engine Is Stalling

Common Causes of Engine Stalling in Your INFINITI FX45 and How to Resolve Them

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Reviewed by
Aisha
Written by RepairPal Car Genius
Updated January 14, 2025
0%
30% chance it's the
Fuel System
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15% chance it's the
Air Intake System
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55% chance it's
Something else
The most common reasons a INFINITI FX45 engine is stalling are the fuel system, the air intake system, or the ignition system.
  • Fuel System: A clogged fuel filter or failing fuel pump can restrict fuel flow, resulting in poor engine performance and starting issues.
  • Air Intake System: A dirty or damaged air filter or a malfunctioning mass airflow sensor can restrict airflow, leading to reduced engine performance and efficiency.
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.

How much does it cost to fix a INFINITI FX45 engine is stalling?

Common Repairs

The total repair cost will vary based on the condition of your vehicle and the number of repairs needed to fix your symptom. Proper diagnosis will save you money by finding the exact repairs needed to fix your car right the first time.

If the MAF sensor sends an erroneous signal, a few things happen. The engine's computer will trigger the check engine light, and the on-board diagnostic (OBD) trouble codes will reflect the airflow discrepancy noted by the MAF sensor. Depending on the reported volume of air, the engine may try to compensate for these conditions, causing the engine to burn excessive amounts of fuel and emit black smoke from the exhaust. In this case, the OBD trouble codes would also reference faults recognized by the exhaust oxygen sensors. The engine may also have issues with idling roughly, failing to start, stalling, hesitation, power loss, misfires, and fuel consumption.

»MORE: Signs of a failing mass airflow sensor

A faulty oxygen sensor is one of the most common causes of a check engine light. Symptoms may include a decrease in fuel mileage, hesitation or misfiring from the engine, rough idling or even stalling. A faulty sensor may cause the vehicle to fail an emissions test.

Any time there is an emissions fault the check engine light will be displayed. The purpose of the check engine light is to inform the driver that an emission related fault has been found, and that there are on-board diagnostic (OBD) trouble codes stored in the powertrain or engine control module. Additionally, since the emissions systems are so intertwined into engine control and transmission control systems, symptoms may include nearly any sort of drivability concerns. This may include harsh shifting, failure to shift, hesitation on acceleration, jerking, engine failure to start or run, loss of power, or any number of other drivability issues.

When the Check Engine Light comes on, you may experience engine performance issues such as poor acceleration, rough idling, or an engine that won't start. In some cases, no abnormal symptoms will be experienced. Other systems like the transmission or ABS can cause the Check Engine Light to illuminate and lights for those systems can come on at the same time. Similar lights may say "Check Engine Soon", "Malfunction Indicator Light" or just "Check". In rare case the engine can overheat.

Troubleshooting Engine Stalling in an INFINITI FX45

When troubleshooting engine stalling in your INFINITI FX45, start by checking the simplest components first. Begin with the air filter and the Mass Air Flow (MAF) sensor, as a clogged air filter can restrict airflow, leading to stalling issues. Cleaning these parts can often resolve the problem without further intervention. Next, inspect the fuel system for any signs of blockage or malfunction, as fuel delivery issues are a common cause of stalling. Additionally, consider the electrical system; ensure that the battery is in good condition and that all connections are secure. If the stalling persists, it may be beneficial to read the diagnostic trouble codes using an OBD-II scanner, which can provide insights into any underlying issues. Lastly, if these steps do not yield results, it may be time to consult a professional mechanic for a more thorough diagnosis, as complex problems may require specialized tools and expertise. By following this structured approach, you can effectively narrow down the potential causes of engine stalling and take appropriate action to resolve the issue.

What to Do When Your INFINITI FX45 Engine is Stalling?

When your INFINITI FX45 engine begins to stall, understanding the common problems that could be at play is crucial for effective troubleshooting. One frequent culprit is a malfunctioning fuel system, which may involve a clogged fuel filter or a failing fuel pump, both of which can disrupt the flow of fuel to the engine. Additionally, electrical issues such as corroded battery terminals or loose connections can lead to intermittent power loss, causing the engine to stall unexpectedly. Airflow blockages, often due to a dirty air filter or issues with the mass airflow sensor, can also hinder engine performance. Furthermore, software glitches within the vehicle's Electronic Control Unit (ECU) may trigger stalling, making it essential to utilize a diagnostic scanner to pinpoint any error codes. Regular maintenance, including timely oil changes and inspections of the ignition system, can help prevent these issues from arising. By being proactive and addressing these common problems, you can enhance the reliability of your INFINITI FX45 and ensure a smoother driving experience.

Why is the Engine Stalling in an INFINITI FX45?

When your INFINITI FX45 experiences engine stalling, it’s crucial to act swiftly, as ignoring these symptoms can lead to serious safety risks and costly repairs. Stalling can stem from various issues, such as complications in the fuel system, which is vital for delivering fuel to the engine. If this system fails, it can disrupt combustion, leading to unexpected stops that could endanger you and others on the road. Additionally, irregular sparking can cause the engine to stall, particularly at higher speeds, increasing the risk of accidents. Starter motor failure is another common culprit, often indicated by a clicking sound without engine rotation, which can leave you stranded. Furthermore, neglected ground points in the engine bay can hinder the performance of fuel injectors, exacerbating stalling issues. Regular maintenance and prompt attention to these symptoms are essential not only for the longevity of your vehicle but also for your safety. Addressing these problems early can prevent more significant damage and ensure a smoother, safer driving experience.

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