How to troubleshoot engine light issues

For those who have seen The Big Bang Theory, the engine light that always is on in penny’s old car is a common ailment that we can relate to. For some it comes and goes and for other it stays on for a while. The check engine light is not something that is to be bypassed with a slide glance, no matter what anyone else says (or Penny from The Big Bang Theory does). The reason that it comes on is because your engine is not performing as it should, and it’s a precautionary measure put in by vehicle manufacturers. The light comes on when the electronic sensors that gauge your vehicle’s engine, transmission and emission levels are off the charts and is detected by the Powertrain Control Module.

The powertrain control module (or PCM) is the checkpoint at which the transmission control system, emission control system and the vehicle engine system is checked at. This sensor system is the reason you know that your car works fine. When there is an issue it store a code that is relevant to the fault found by the PCM.

Whether it is alright to drive while the light is on

Although the vehicle will not break down on you right away, it is recommended by driving school Mosman experts to drive your vehicle straight to a mechanic. You can only drive short distances and also at low speeds. You can drive at the average speed limits if the distance to the mechanic is closer. If the engine keeps working while you are driving, then the light can also turn into a flashing one.

When your engine light starts flashing your SOS signals

But if the check engine light is flashing like an SOS sign then it means that your engine cylinders are not working properly. When the engine cylinders are out of sync (or are ‘misfiring’) then it will permanently damage the catalytic converter (a very expensive part in your vehicle). Usually reducing the speed of driving till you reach a mechanic for fixing your car is recommended by professionals at driving school Mosman.

Problem of the open gas cap

Sometimes when your gas cap is closed incorrectly, or this lid is not on properly, your engine light may start flashing. Turn your vehicle to the curb and then check your gas cap if your vehicle is one of the ones that actually start flashing the lights when your gas cap is not on correctly.

Sometimes the engine light also comes on after your vehicle gets serviced. If the light does not turn off after a few hours, take it back to the service station and have a word with the mechanic there.