Don't clear that check engine light—this $100 tool can save you a failed smog test

The “check engine” light is the most annoying orange icon in America. Half the time the car feels fine, and the other half ...
Fast Lane Only on MSN

Reasons your check engine light comes on and how to interpret it

When the check-engine light snaps on, it is not a suggestion, it is your car’s way of saying something in the powertrain or emissions system needs attention. I see it as an early warning system that ...
Jalopnik

You Don't Need To Be A Mechanic To Outsmart Your Check Engine Light

Sponsored Content. We may receive a commission on purchases made from links. Let's replay a scenario that is likely rather well known among the automotive inclined. You are driving your 2005 Cadillac ...