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.
When faced with a check engine light on your 1998 Mitsubishi Galant, the first step is to check the gas cap, as a loose or damaged cap is a common and easily fixable issue that can trigger the light. If the gas cap is secure, the next step is to use an OBD-II scanner to retrieve any trouble codes from the vehicle's computer. These codes are invaluable for diagnosing the specific problem. Following this, inspect the spark plugs for wear or damage, as faulty spark plugs can significantly affect engine performance and illuminate the check engine light. Additionally, examine the mass airflow sensor, which is essential for optimal engine function; a malfunction here can also cause the light to activate. Lastly, check the oxygen sensor, as it monitors exhaust oxygen levels and can lead to the check engine light being triggered if it fails. By systematically addressing these areas, you can effectively narrow down the cause of the check engine light and take appropriate action to resolve the issue.
When the check engine light comes on in a 1998 Mitsubishi Galant, it can be a source of concern for any DIY car owner. One of the simplest issues to check is the gas cap; a loose or damaged cap can easily trigger the light, so ensure it is tightened properly. If the gas cap is secure, consider inspecting the oxygen sensor, as a faulty one can lead to poor fuel efficiency and increased emissions. Another critical component to examine is the catalytic converter; if it is clogged or failing, it can also cause the check engine light to illuminate. Additionally, the mass airflow sensor plays a vital role in maintaining the correct air-fuel mixture, and any malfunction here can result in the light turning on. Don't overlook the ignition system either; issues with spark plugs can lead to engine misfires, which will trigger the warning light. Lastly, a vacuum leak can create various engine problems, including the activation of the check engine light. Addressing these common issues promptly can help maintain your vehicle's performance and prevent further complications.
Addressing the check engine light in a 1998 Mitsubishi Galant is crucial for maintaining the vehicle's overall health and safety. This warning indicator is not just a minor inconvenience; it signals potential issues with the engine or emissions system that, if ignored, could escalate into more severe and costly problems. For DIY enthusiasts, understanding the urgency of this warning is essential. Continuing to drive with the check engine light illuminated can lead to decreased fuel efficiency, compromised performance, and even safety hazards on the road. Moreover, neglecting these symptoms may result in significant damage to the engine or other critical components, which could require expensive repairs. Therefore, it is advisable to diagnose the issue as soon as possible, either through an OBD-II scanner or by consulting a qualified mechanic, to ensure that any underlying problems are addressed promptly and effectively. Taking swift action not only protects your vehicle but also enhances your driving experience and safety.
Read about related problems experienced by other Mitsubishi Galant drivers like you.
See what others are asking about their Mitsubishi Galant. Get answers from RepairPal's community of auto experts and enthusiasts.
