2018 Ford Police Interceptor Utility Has A Check Engine Light

Check Engine Light Issues in 2018 Ford Police Interceptor Utility

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Reviewed by
Devin Cabugcal
Written by RepairPal Car Genius
Updated January 14, 2025
0%
40% chance it's the
Emissions System
0%
60% chance it's
Something else
The most common reasons a 2018 Ford Police Interceptor Utility has a check engine light are an emissions system component, a sensor, or a catalytic converter.
  • Emissions System: A faulty emissions system component, such as an oxygen sensor or EGR valve, can lead to increased emissions and trigger the check engine light.
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 2018 Ford Police Interceptor Utility has a check engine light?

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.

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.

Due to the nature of electrical systems on modern vehicles, the range of problems these can cause are nearly limitless. However, there is a way to categorize them in two ways. Permanent and intermittent problems. Permanent problems appear and remain. This may be the vehicle will not start, the radio does not work, or the door chime will not turn off among many, many others. These problems are more straight-forward to diagnose since they present themselves at all time. This means there will always be a fault to find. Intermittent electrical problems, however, can be difficult or impossible to locate, since they appear then disappear without warning. The best case scenario for an intermittent issue is when replicating the problem is easily accomplished and understood. This allows a technician to make an issue semi-permanent, allowing them to find the fault. Other issues that come and go without warning and cannot be replicated on demand must occur when the technician is servicing the vehicle, otherwise there is no problem to correct. It is most important to understand that electrical system faults always require inspection, and can include the vehicle working in any manner, or not working at all.

Like we noted in the last section, general diagnosis symptoms are the most vague of the bunch. There are several diagnostic spectrums, electrical diagnosis, drivability diagnostics, engine diagnostics, transmission diagnostics, and the list could continue for about 5 or 10 more spectrums of diagnostics. The most important take-away here, is that general diagnostics are diagnostics that have no other spectrum in which they fit, or the problem is unknown. This means that any vehicle left outside of a repair facility with the keys and an authorization to perform diagnosis will be diagnosed under the general diagnosis spectrum.

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.

What are the initial diagnostic steps to take for a check engine light on a 2018 Ford Police Interceptor Utility?

When faced with a check engine light on your 2018 Ford Police Interceptor Utility, it's essential to adopt a methodical diagnostic approach. Start by examining the dashboard for any additional warning lights, as these can offer crucial insights into the underlying issue. Next, inspect the gas cap; a loose or damaged cap is a common culprit that can easily trigger the check engine light. Utilizing an OBD-II scanner is a vital step, as it allows you to retrieve diagnostic trouble codes (DTCs) that pinpoint specific problems within the vehicle's systems. Additionally, check the battery for any signs of corrosion or loose connections, as electrical issues can also lead to the light illuminating. Don't overlook the air filter; a dirty or clogged filter can hinder engine performance and should be inspected and replaced if necessary. Finally, monitor your vehicle's performance for any irregularities such as rough idling or stalling, as these symptoms can help narrow down potential causes. By following these initial steps, you can effectively gather information to diagnose the issue and take appropriate action.

What are the common problems that could cause the check engine light to illuminate in a 2018 Ford Police Interceptor Utility?

When the check engine light comes on in a 2018 Ford Police Interceptor Utility, it can be a source of concern for any DIY mechanic. One of the most frequent culprits is a faulty oxygen sensor, which can lead to poor fuel efficiency and increased emissions. Another common issue is a loose or damaged gas cap; this seemingly minor problem can cause fuel vapors to escape, affecting the vehicle's emissions system. Additionally, problems with the catalytic converter, such as inefficiency or failure, can also trigger the light. A defective mass airflow sensor can disrupt the air-fuel mixture, leading to performance issues and the illumination of the check engine light. Furthermore, issues with spark plugs or ignition coils can result in engine misfires, which are often indicated by the check engine light. Lastly, an engine misfire itself, caused by various factors including worn-out components, can also be a reason for concern. Addressing these issues promptly is crucial for maintaining optimal vehicle performance and preventing further damage, making it essential for DIY enthusiasts to be aware of these common problems.

What are the potential risks and necessary actions for addressing the check engine light in a 2018 Ford Police Interceptor Utility?

When the check engine light illuminates in your 2018 Ford Police Interceptor Utility, it serves as a critical warning that should not be ignored. The risks associated with neglecting this indicator can escalate quickly, leading to severe mechanical failures and costly repairs. For instance, a seemingly minor issue, such as a loose gas cap, can trigger the light, but if left unaddressed, it may evolve into more significant problems affecting the engine or emissions system. This not only compromises the vehicle's performance and fuel efficiency but also poses safety risks on the road. To effectively tackle this issue, start by ensuring that the gas cap is secure and undamaged. If the light persists, utilizing an OBD-II scanner to retrieve diagnostic error codes is essential, as it will help identify the underlying problem. Once you have the codes, you can take appropriate action, whether that involves simple repairs or more complex component replacements. If the issue remains unresolved, consulting a professional mechanic is advisable to prevent further damage. Regular maintenance is also crucial in preventing future occurrences of the check engine light, ensuring your vehicle operates safely and efficiently. By taking these steps promptly, you can safeguard your vehicle's performance and longevity.

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