Cool 2015 Silverado Check Engine Light Flashing Then Stops 2023. If you have a chevy check engine light flashing, you’ve got problems. Web the check engine light on your 2015 chevrolet silverado 1500 will usually shut itself off if the issue or code that caused it to turn on is fixed.

There are several potential causes for a check engine light to flash briefly and then turn off: Some common causes include a misfire in the engine, a faulty oxygen sensor, a loose gas cap, or a malfunctioning catalytic converter. Plugs look good, compression are all around 150psi but now that i put the plugs back in and plugged the wires back on the plugs i have a flashing check engine light and p0300.