defensive driving. It is agood-lookingday as you drive down the road. You have your day plotted out and are looking ahead to checking items off your to do list. Then out of the blue, out of the blue, there it is, your check engine light has come on. In an instant your emotional state shifts from one of bliss to one of worry You begin to contemplate if you will be able to to be able to make it to your next destination. And your second deliberation is just how much is this trouble with my vehicle going to cost me.