Check Engine Light And O2 Sensors

It is the one thing everybody dreads when they look at their vehicle’s dashboard. The Check Engine Light! Most of the time, the dashboard is calm, quiet, not much going on unless you are making a turn, in which case you have the blinking green lights and a reassuring “click” for each iteration. However, inevitably the day arrives when the Check Engine Light is on, and you PANIC! Usually the activation of this light spells TROUBLE. And by that, we mean time and money!

Most of the time, fortunately, the check engine light doesn’t indicate anything super serious. Yes, it can be indicative that your transmission is failing or that your manifold is toast. However, the most common cause for the Check Engine light being activated is because of the O2 sensors. These little gizmos become really important as climate change has risen in prominence. The O2 sensors are a good guage as to how much excell pollution you are putting into the atmosphere. If you keep the amount of oxygen being pumped into the fuel to a minimum, your emissions are also kept to a minimum.

However, newer car engines are very complex systems and it may not be just the O2 sensor that is the problem. There are hoses and other sensors upstream and downstream of the O2 sensor that can be causing the fault. If you go to your local parts store and they run the diagnostic and tell you it is the O2 sensor, please don’t by replacements and try to do it yourself. You need a trained mechanic to look at your vehicle and determine what the real issue is.

If you live in Essex, Burlington, South Burlington, Colchester, Winooski, Williston, Shelburne and anywhere in the State of Vermont be sure to contact Handy’s Service Center for all your auto repair needs!