7 Issues that Trigger the Check Engine Light

7 Issues that Trigger the Check Engine LightWhen the check engine light comes on, the impulse is often to worry that an automotive disaster is just around the corner. However, something as trivial as a missing gas cap could potentially trigger the light. Nonetheless, when the light illuminates, it's important to get to the shop for diagnostics so that you don't risk needing major repairs that could've been nipped in the bud. Here's a look at seven reasons the check engine light turns on.

Bad Spark Plugs

Older vehicles should have their spark plugs replaced every 30,000 miles. For vehicles manufactured after 2000, you can usually go 100,000 miles before spark plug replacement. For optimal performance and gas mileage, it's important to drive with healthy spark plugs.

Failing Battery/Charging System

A failing battery can cause low voltage at the computer, which can then cause the check engine light to come on.

Faulty Catalytic Convertor

Although catalytic converter replacement can be quite spendy, it's important that it gets done because of the cat's important role, which is to turn carbon monoxide into an emission that is less harmful to the environment.

Bad Oxygen Sensor

Oxygen sensors keep tabs on how much unburned oxygen is in the exhaust system. If there is trouble with an oxygen sensor, then issues could arise with the catalytic converter.

Failing Mass Airflow Sensor

Mass airflow sensors monitor the amount of incoming air and calculate how much fuel needs to be injected with it.

Faulty Ignition Coil

Ignitions coils serve an integral role in generating the needed spark for engines to fire up. Sometimes, ignition coils will fail due to extreme weather.

Loose/Missing Gas Cap

A loose or missing gas cap can result in fuel evaporating before you get the opportunity to use it. Though it might seem strange, a poorly-fitting gas cap can actually cause the check engine light to illuminate.

If you need check engine light diagnostics, be sure to visit a reputable mechanic. For check engine light diagnostics and repair in Clawson, Royal Oak, and Birmingham, MI, contact the experts at Multistate Transmissions at (248) 712-1215. Multistate Transmissions also offers expert transmission rebuilds in Clawson, MI. Feel free to give Multistate Transmissions a call today to schedule an appointment for your repair or maintenance needs!

Multistate Transmissions Blog
Posted: July 3, 2020

Written and Published By MORBiZ

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