What Would Cause The Check Engine Light To Not Come On

No matter how many you have though a malfunctioning coil will almost certainly trigger the check engine light but remember if your car burns diesel you have neither ignition coils nor spark.

What would cause the check engine light to not come on. A malfunctioning sensor low tire pressure low transmission fluid and so much more will cause the light to come on. When the light glows it doesn t always foreshadow an expensive repair sometimes the issue can be fixed with just the turn of a wrist. A recent oil change that was done correctly. Below is a list of the top 10 reasons why your chevy check engine light may come on.

A failing oxygen sensor also known as an o2 sensor is one of the most common reasons for that jeep check engine light to come on. And the tricky thing with the o2 sensor is that the car will continue to drive well so you might want to dismiss the light. Oil changes are essential maintenance for your car but it won t do anything that could trigger your check engine light to come on. Your check engine light blinks or glows depending on what s wrong with your vehicle.

Just would like some idea of what this could be a burnt out light bulb or fuse or possibly computer ugh problem. Recently it failed a smog check due to the fact that the check engine light would not come on. It could also be a warning of a serious problem that could damage your engine components. Oxygen sensor needs to be.

Your check engine light may be indicating a simple problem that s easy to fix such as a loose gas cap that needs to be replaced. The most common reasons for the check engine light to come on are a problem with the fuel injection system a vacuum leak or. In general five common malfunctions can cause the check engine light to come on and some of them are simple to fix yourself. If you notice the light after an oil change something else is wrong.

This car runs great and in fact the emissions part of the smog test was normal no problems at all. But some reasons the check engine light comes on are much more common. Let s take a look at the most common issues. One thing that won t trigger a check engine light.

Replace thermostat 244 61 occasionally the check engine light comes on when nothing is wrong with the car said steve mazor chief automotive engineer for the auto club of southern california.