Common Check Engine Light Problems that Should Be Promptly Repaired by a Mechanic

When your check engine light turns on, it can be tempting to ignore it—especially if the car seems to be running fine. However, that little light is your vehicle's way of signaling that something under the hood isn’t quite right. While some issues might be minor, others can lead to big problems if not addressed promptly. If your check engine light is on, it’s important to have the problem diagnosed by a qualified mechanic as soon as possible. At All Engines & Transmissions, we provide expert check engine light repair in the greater Westminster, CO area. Here are four common check engine light issues that require professional attention.
Failing Catalytic Converter
The catalytic converter is a key part of your car’s emissions control system. It reduces harmful pollutants by converting them into less toxic gases before they exit the exhaust. A failing catalytic converter can cause your engine to lose power, reduce fuel-efficiency, and increase emissions. If the check engine light points to a catalytic converter issue, the mechanic should address it right away.
Faulty Oxygen Sensor
One of the most frequent reasons for a check engine light is a malfunctioning oxygen sensor. This sensor monitors how much unburned oxygen is in your car’s exhaust and helps regulate the air-fuel mixture to optimize performance and fuel-efficiency. A failing sensor can cause performance issues and even cause damage to the catalytic converter over time. Replacing a faulty oxygen sensor is typically straightforward for a mechanic but crucial for avoiding costlier problems.
Malfunctioning Mass Air Flow Sensor
The mass air flow (MAF) sensor measures the amount of air entering the engine to help regulate fuel delivery. If the sensor malfunctions, it can result in poor fuel-economy, rough idling, and even stalling.
Ignition System Problems
Issues such as bad spark plugs, ignition coils, or plug wires can cause engine misfires, which will trigger the check engine light. Misfires reduce performance and can lead to more serious engine problems. The mechanic can perform diagnostics to pinpoint which components are failing and replace them to restore smooth engine operation. Prompt repair of ignition system problems helps prevent costlier repairs and enables your vehicle to run efficiently.
Check Engine Light Repair in Westminster, CO
For engine repair and replacement in Westminster, CO and the surrounding area, contact All Engines & Transmissions at (720) 707-0183. At our local auto shop, we can expertly address your vehicle’s repair and maintenance needs. Feel free to give us a call to schedule an appointment!









