How the Check Engine Light Issue is Diagnosed


Every car has a way to communicate with its user. Usually, it does it through the warning lights that flash up on the dashboard. Among all these warnings and indicative lights, the most common one that makes the user feel most worried, is the “check engine” light.

It is awarning sign that indicates there is some issue with the engine or anything that is related to the engine. The “check engine” light lit up with every other light when the car engine is key started. In usual and normal condition, the light should get turned off automatically as soon as the car starts moving. But if it stays back, or starts blinking then it is trying to let you know that something is seriously wrong with the engine or its related mechanisms explained a mechanic who serves at the Pocatello check engine light department.

He further explained that whenever the onboard diagnostics system (or OBD II) detects any impairment in the engine section or in any other system that is related to the engine, the system will automatically turn on the “check engine” light that will get displayed on the dashboard.

Decoding the Indication

The “check engine” light is usually meant to appear either in yellow or orange color. It is there to display the phrase “Check Engine” in an outline. But the light is programmed to behave a certain way to make things clearer for the car user to understand how severe the problem regarding the engine could be.

It is so because in normal times, the “check engine” light, like all other indicative lights, gets turned on every time the car engine is started. This shows everything is running in a normal and healthy condition. But when the light stays on, or keeps blinking, that is a sure shot sign of a trouble under the hood, that might lead to a costly repair.

Parts or Mechanism to be Checked

When the check engine light simply stays on but is not blinking, it is actually good news for you. this issue can be fixed back with some DIY techniques. The indication is of a problem as simple as a loose gas cap, insufficient level or contamination of engine oil or coolant, a faulty oxygen sensor, or a disconnected Spark plug. All this can be fixed back to normal without much of an effort, and only by following some simple DIY techniques.

But things will not be that lightweight if the light starts blinking. The case it could be indicative of a serious issue like a worn-out radiator, or carbonator, a misfire in the ignition system, or it could also a troubled exhaust system. It is able to cause severe damages to the engine.

It is strongly recommended, that in case of a blinking light reading the check engine phrase must be treated only by a professional or at a repair center where they can examine, inspect and diagnose the reason behind that is turning on the “check engine” light explained the mechanical team who perform CEL diagnosis in Pocatello.

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