The Check Engine light may indicate a serious issue with your Cummins diesel engine. Here's how to check and clear the fault codes triggering that light.

If your vehicle is throwing a check engine light, but you don't have a diagnostic scanner handy, here are three tricks to try before seeing a mechanic.

A code reader for your car can mean the difference between dropping everything and heading for the mechanic and letting that warning light ride a little bit.

It has a check engine light on and I was looking for the connector to install the jumper wire (paper clip) to retrieve the fault codes. The connector does not look like the one in my C3 Corvette.

We recently got our hands on the new GoTech mobile OBD-II diagnostic tool and put it through its paces on several trucks in our fleet. The GoTech is more than just a code reader, though.