What Can Cause Check Engine Light To Come On

You know there s something wrong with your vehicle but you don t know what and that results in anxiety of uncertainty.

What can cause check engine light to come on. Let s take a look at the most common issues. Here is a list of the top 10 reasons why your check engine light turns 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. While it s often assumed that the check engine light cel is an indication of a major mechanical issue this isn t always the case.

With your engine off check your spark plug wires for tiny cracks or holes especially around the ends of the wires. But why would this cause the check engine light to come on. A flashing check engine light means that you need to pull over immediately as your vehicle has a serious issue that could cause severe engine damage. If they look shabby you should replace them.

Bad or low octane fuel. If the car has run for a considerably long time say 50 000 miles with the same gas cap it s safe to say that the reason is your gas cap is old weary and exhausted. But some reasons the check engine light comes on are much more common. It will let pollutants find their way to your fuel chamber clogging the filter.

These cars will display a. Then when you least expect it it ll go off in the middle of the night because a leaf from. Once again this can cause the check engine light to come on. So this small and inexpensive plastic part is actually a crucial part of your car s fuel delivery system.

In fact according to many professional mechanics a warning light can be caused by a minor electrical glitch. It s the gas cap that keeps fumes from leaving the fuel tank and keeps the whole system under correct pressure. That being said there can be several reasons behind check engine light due to the gas cap failure. The check engine light is intimidating when it first comes on especially if you re unfamiliar with the mechanics of your vehicle.

It can drain the battery trigger the check engine light or even prevent the vehicle from starting. There are a number of cars that are very sensitive to misfires. In general five common malfunctions can cause the check engine light to come on and some of them are simple to fix yourself. Why the check engine light is scary but often neglected.