Estimate your payments

Please adjust the options below so we can estimate the most accurate monthly payments.

Your estimated credit score
Loan term
Down payment


Check Engine Light On? Could Be A Faulty O2 Sensor

According to the annual CarMD Vehicle Health Index one of the most common check engine light repairs is replacing the oxygen sensor. This relatively minor repair can be costly if neglected, leading to as much as 40 percent lower fuel efficiency, causing further damage to your vehicle's exhaust system and adversely impacting the environment.

Vehicles with faulty oxygen sensors typically seem to drive and handle well, but the malfunction can dramatically decrease fuel efficiency and lead to costlier repairs if ignored. A faulty oxygen sensor means your vehicle is emitting more pollutants and if the check engine light is illuminated, it may not pass vehicle emissions testing in those states requiring it for vehicle registration.

A vehicle's oxygen sensors are mounted in the exhaust system; they monitor the catalytic convertor's operation and the level of oxygen in exhaust gases to maintain efficient engine operation. The best way to prevent an oxygen sensor failure is to follow a regular service schedule, including routine oil changes.

Unlike the past nine years of the annual CarMD report, costly catalytic converter replacement edged out O2 sensor replacement as the most common check engine light repair. Catalytic converters do not typically fail unless maintenance and other repairs are ignored or the vehicle is older. Average vehicle age has increased from 10.6 years to 11.7 years over the past decade, contributing to this outcome.

It is important that car owners check the reason for an illuminated check engine light without delay and make necessary maintenance to avoid more costly repairs, like catalytic converter replacement, down the road. If you find your vehicle needs service, give us a call at (305) 445-8593 or to schedule a service appointment, click here as automotive repair is considered an essential service.

More Newsletter Stories For You...
A Special Gift
for Memorial Day
A New 2019 for You!
An Update to
Our Operations
This Small Change
Reduces the Risk of
Spreading Covid-19
Within Your Car
What Do You Do
When it Feels Like the
World has Stopped?
Mercedes-Benz of
Coral Gables
Salutes Moms
Check Engine
Light On?
Could Be a Faulty
O2 Sensor
How to Save up to 30%
on Service and Parts
Why You Need
to Maintain
Your Vehicle Even
If It Sits Idle