What would cause your check engine light come on?

What would cause your check engine light come on?

Spark Plugs Finally, worn spark plugs or plug wires will result in a check engine warning. Just about anything wrong with your vehicle’s ignition system will likely cause your check engine light to come on.

Why does the Check Engine light come on?

When the Check Engine Light comes on, that means that Trouble Codes, likely identifying the causes of the issue you are having, have been stored in your car’s computer. The fastest way to resolve this is to have a Check Engine Light Diagnostic performed to obtain those Codes and start to track down the possibilities.

Where can I find the code on my Check Engine light?

Do-it-yourselfers can buy inexpensive code readers from an auto parts store or online that connect to the onboard diagnostics (OBD) port and search for the code’s meaning on websites such as Engine Light Help. Modern systems will display the code in an app on your smartphone.

What should I do if my check engine light is cracked?

To fix it, you should get it tightened, or replaced if it is cracked. A fuel cap shouldn’t cost a lot and all you need is a screwdriver to fix. This should also help you MPG. The catalytic converter is part of the exhaust system, working to reduce the amount of harmful exhaust gases.

Why does my check engine light turn orange?

When it runs into an issue that the ECU cannot correct, the check engine light (CEL) starts glowing. The light is typically yellow or orange, and features an image of engine with text telling the driver to check or service the engine or powertrain. The engine computer stores a diagnostic code when the light begins glowing.

What do I do if my check engine light comes on?

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. These conditions mean you should pull over and shut off the engine as soon as you can find a safe place to do so.

What would cause the Check Engine light to come on?

A loose gas cap can cause the check engine light to come on. A problem with a spark plug can cause the check engine light to come on.

How do you check the Check Engine light?

Put your key in the ignition and switch the vehicle to “on.” Do not start the vehicle. Once the lights on the dash come on, turn off all the vehicle’s accessories, like the radio. Then, press the “read” button on the scanner to access the check engine light code.

Why does the Check Engine light keep coming on?

  • or simply missing.
  • especially with higher mileage vehicles.
  • Fouled Spark Plugs or Spark Plug Wires: Over time you will eventually need new spark plugs or spark plug wires.