2018 Mitsubishi Outlander Won't Start

Common Causes for Your 2018 Mitsubishi Outlander Not Starting and How to Resolve Them

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Reviewed by
Aisha
Written by RepairPal Car Genius
Updated January 14, 2025
0%
38% chance it's the
Battery
0%
27% chance it's the
Alternator
0%
20% chance it's the
Starter
0%
15% chance it's
Something else
The most common reasons a 2018 Mitsubishi Outlander won't start are a dead battery, an alternator problem, or failed starter.
  • Battery: A weak or failing battery can result in difficulty starting the engine and electrical system malfunctions.
  • Alternator: A failing alternator can result in insufficient electrical power, leading to battery drain and electrical system malfunctions.
  • Starter: A faulty starter motor or a weak battery can prevent the engine from cranking properly, leading to starting issues.
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 when a 2018 Mitsubishi Outlander won't start?

When your 2018 Mitsubishi Outlander refuses to start, it's essential to adopt a methodical diagnostic approach to identify the root cause. Start by checking the battery, as a dead or low battery is a common culprit; you can jump-start the vehicle or use a multimeter to measure the voltage. Next, ensure that there is sufficient fuel in the tank, as running out of gas can easily lead to starting issues. If these initial checks don’t resolve the problem, inspect the ignition system, particularly the ignition switch, which can fail and prevent the engine from starting. Following this, verify the functionality of the starter motor; if it doesn’t engage when you turn the key, it may need replacement. Additionally, assess the fuel system by confirming that the fuel pump is operational, as a malfunction here can block fuel delivery to the engine. Finally, consider using an OBD-II scanner to check for any error codes that might indicate specific issues within the vehicle’s systems. By systematically working through these steps, you can effectively diagnose and address the starting problem with your Outlander.

What are the common problems that could cause a 2018 Mitsubishi Outlander to not start?

When troubleshooting starting issues with a 2018 Mitsubishi Outlander, it's essential to consider several common problems that could be at play. A dead or weak battery is often the first suspect, as it can result from age, extreme weather conditions, or simply leaving the lights on. If the battery is functioning properly, the next component to examine is the starter motor; a faulty starter can prevent the engine from turning over. Additionally, issues within the fuel system, such as a clogged fuel filter or a malfunctioning fuel pump, can hinder the vehicle's ability to start. It's also crucial to check the ignition switch, as a defect here may stop the key from turning or engaging the starter. Worn-out spark plugs can lead to ignition problems, making it difficult for the engine to start. Furthermore, any malfunctions in the ignition system, including issues with the ignition coil or distributor, can also affect the starting process. Lastly, if the vehicle's security system is not recognizing the key or is activated incorrectly, it may prevent the car from starting altogether. By systematically checking these components, you can effectively diagnose and address the starting issues with your Outlander.

How urgent is it to address the starting issue in a 2018 Mitsubishi Outlander?

When dealing with a starting issue in a 2018 Mitsubishi Outlander, it is essential to recognize the urgency of the situation to prevent further complications. If the vehicle fails to start completely, immediate action is necessary to avoid being stranded and to prevent potential damage to the engine or electrical system. Additionally, any warning lights on the dashboard should not be ignored, as they often indicate serious problems that could compromise safety or lead to more extensive repairs if left unaddressed. Even intermittent starting problems warrant prompt attention, as they may signal an underlying issue that could escalate over time. For those considering a DIY approach, it is wise to seek a professional diagnosis if the symptoms persist, as this can provide clarity on the urgency of the problem and help avoid costly repairs down the line. Ultimately, addressing starting issues promptly not only ensures the vehicle's reliability but also safeguards the driver and passengers from potential hazards.

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2018 Mitsubishi Outlander Won't Start: Causes & Solutions