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.
To effectively diagnose the check engine light on your 2015 Dodge Challenger, start with the simplest potential issue: a loose gas cap. This common oversight can easily trigger the warning light, so ensure it is securely tightened. Next, utilize an OBD-II scanner, which you can connect to the vehicle's diagnostic port. This tool will help you retrieve any error codes stored in the system, providing insight into the underlying issues. Once you have the codes, take the time to research their meanings, either through the vehicle's manual or reputable online resources, to understand what systems may be affected. Additionally, perform a visual inspection under the hood, looking for any obvious signs of wear or damage, such as frayed wires or cracked hoses. If these steps do not lead to a resolution or if the problem appears to be more complex, it may be wise to consult a qualified mechanic for further assistance. By following this diagnostic approach, you can systematically address the check engine light and potentially save on repair costs.
When the check engine light comes on in a 2015 Dodge Challenger, it can indicate several common issues that are often manageable for DIY enthusiasts. One frequent culprit is a loose gas cap, which can easily be tightened or replaced if damaged. Another common problem is a faulty oxygen sensor, which affects fuel efficiency and can be replaced with basic tools. Additionally, issues with the catalytic converter may arise, often requiring more advanced knowledge to address. Spark plug wear is another typical issue that can lead to engine performance problems, and replacing them is a straightforward task for those familiar with engine maintenance. The mass airflow sensor can also malfunction, impacting the air-fuel mixture, while ignition coil issues may cause engine misfires, both of which can be diagnosed and repaired with some mechanical skill. Lastly, a faulty thermostat can disrupt engine temperature regulation, and while it may require more effort to access, it is still a feasible DIY project. If the check engine light remains illuminated after addressing these common issues, consulting a qualified mechanic is recommended for further diagnosis.
When the check engine light illuminates in your 2015 Dodge Challenger, it serves as a critical warning that should not be ignored. This light often signifies underlying issues with the engine or emissions system, which, if left unaddressed, can lead to diminished performance and fuel efficiency. More alarmingly, neglecting this warning can escalate minor problems into major repairs, resulting in significantly higher costs. Additionally, some issues indicated by the check engine light may compromise your vehicle's safety, particularly if they involve essential components like the engine or braking system. Therefore, for DIY enthusiasts, it is crucial to promptly diagnose and resolve the cause of the check engine light to maintain your Challenger's performance, ensure your safety on the road, and avoid the risk of incurring expensive repairs in the future. Taking immediate action not only protects your investment but also enhances your driving experience.
Read about related problems experienced by other Dodge Challenger drivers like you.
See what others are asking about their Dodge Challenger. Get answers from RepairPal's community of auto experts and enthusiasts.