Check Engine Light

A flashing check engine light typically indicates a serious issue with your vehicle’s ignition, fuel, or emission systems. When this light appears, it’s crucial to address the problem promptly by visiting an auto care professional for diagnostic tests and troubleshooting. Delaying necessary engine repairs can cause your vehicle’s issues to escalate and increase repair costs. 

While it’s impossible to pinpoint the exact cause without diagnostics, common reasons for a check engine light include a failing oxygen sensor, loose or damaged gas cap, faulty spark plugs, weak battery, bad mass airflow sensor, EGR valve problem, damaged catalytic converter, or a vacuum leak.

One common issue, a failing oxygen sensor, affects the air-to-fuel ratio and can decrease fuel efficiency by up to 40%. Another frequent culprit, bad spark plugs, can lead to ignition problems, fuel waste, or even prevent the car from starting.

Regular maintenance, including scheduled battery checks and filter replacements, can help prevent these issues. For example, a weak battery can trigger the check engine light due to inadequate energy supplied to the vehicle’s computer system. Addressing these issues promptly ensures your vehicle runs smoothly and efficiently, avoiding more severe problems down the road.