What are the most common reasons for a check engine light to come on?

What are the most common reasons for a check engine light to come on?

Here’s a list of some of the most common check engine warnings:

  1. Oxygen sensor (or O2 sensor)
  2. Catalytic converter failure.
  3. Spark plug or ignition coil failure.
  4. Airflow sensor failure.
  5. Replace the thermostat.
  6. Replace exhaust gas recirculation (EGR) valve and clean all EGR ports.

Where can I get my check engine light checked for free?

At a local auto parts store

  • Advance Auto Parts.
  • AutoZone.
  • Napa Auto Parts.
  • O’Reilly Auto Parts.
  • Pep Boys Auto Parts.

    How far can you drive on a check engine light?

    When the Check Engine light comes on, you can still drive it for 50 to 100 miles, equivalent to 80 to 160 kilometers. It would be best if you took separate trips to help your car system assess its own status.

    What should I do if my check engine light appears?

    If the check engine light comes on, here are some tips on what you should do: Look for a serious problem that requires immediate attention. Check your dashboard gauges and lights for indications of low oil pressure or overheating. Try tightening your gas cap. This can often solve the problem. Reduce speed and load. Use built-in diagnostic services, if available.

    Where can I test the Check Engine light?

    Disconnecting car battery cables In this step, you should use a wrench to remove positive and negative cables. Apply The Battery Disconnecting Technique (Source: Wikihow) Draining remaining electricity Next thing you should do is to press and hold the car horn for about 30 seconds. Waiting and reconnecting the battery

    What does the Check Engine light actually mean?

    The check engine light is a signal that the onboard diagnostics system (or OBD II) has detected a malfunction in the vehicle’s emissions, ignition, fuel or exhaust systems. It could be caused by something as simple as a loose gas cap or a faulty oxygen sensor or spark plug or something as severe as…

    How important is that check engine light?

    Check Engine Light is an essential part of a vehicle’s OBD system. The onboard diagnostic system control as well as monitor your vehicle’s performance. This system controls variable such as fuel mixture, engine speed, and transmission functions.