2019 Chrysler Pacifica Has A Check Engine Light

Resolve Check Engine Light Issues in 2019 Chrysler Pacifica

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Reviewed by
Bo Fader
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 2019 Chrysler Pacifica 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 2019 Chrysler Pacifica 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 2019 Chrysler Pacifica?

When faced with a check engine light on your 2019 Chrysler Pacifica, it's essential to adopt a systematic diagnostic approach. Start by checking the gas cap; a loose or damaged cap is a common culprit that can easily trigger the light. Next, take a moment to inspect your dashboard gauges for any additional warning lights or unusual readings, as these can provide further insights into the vehicle's condition. Utilizing an OBD-II scanner is a crucial step in this process; by connecting it to your vehicle's diagnostic port, you can retrieve specific error codes that will help identify the underlying issue. Additionally, researching common problems associated with the 2019 Pacifica can reveal known issues that may be relevant to your situation. Finally, consulting your owner's manual can offer valuable information regarding the check engine light and recommended troubleshooting steps. By following this methodical approach, you can effectively diagnose and address the cause of the check engine light, potentially saving time and money on repairs.

What are the common problems that could cause the check engine light to illuminate in a 2019 Chrysler Pacifica?

When the check engine light comes on in a 2019 Chrysler Pacifica, it can indicate a range of issues that may require attention. One of the most straightforward problems to check is a loose gas cap, which can lead to fuel vapor leaks and is easily remedied by ensuring the cap is securely fastened. More complex issues may involve the oxygen sensor, which plays a crucial role in monitoring fuel efficiency and emissions; a faulty sensor can significantly impact vehicle performance. Additionally, problems with the catalytic converter can arise, affecting exhaust flow and emissions, while issues with spark plugs or ignition coils can lead to engine misfires, resulting in poor performance and increased emissions. The mass airflow sensor is another critical component that, if malfunctioning, can disrupt the air-fuel mixture, causing the check engine light to illuminate. Other potential culprits include a faulty thermostat, which can affect engine temperature regulation, and issues with the EGR valve, which can lead to increased emissions. Transmission troubles, such as low fluid levels or failing components, can also trigger the warning light, as can malfunctions in the electronic control module (ECM) that oversees various engine functions. Understanding these common problems can empower DIY enthusiasts to diagnose and address issues effectively, ensuring their Pacifica runs smoothly.

How urgent is it to address the check engine light in a 2019 Chrysler Pacifica?

When the check engine light illuminates in your 2019 Chrysler Pacifica, it is crucial to act swiftly to prevent further complications. This warning signal can indicate a range of issues, from minor sensor malfunctions to serious engine problems that could compromise your vehicle's performance and safety. Ignoring this light not only risks decreased fuel efficiency but can also lead to costly repairs if the underlying issue worsens. For DIY enthusiasts, the first step is to use an OBD-II scanner to retrieve diagnostic trouble codes, which can provide insight into the specific problem. However, it’s essential to remember that some issues may require professional expertise, especially those related to the emissions system or engine mechanics. By addressing the check engine light promptly, you can ensure your Pacifica remains reliable and safe on the road, while also potentially saving yourself from more significant repair costs in the future.

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