Using an OBD-II scanner: What it can and can't tell you

An OBD-II scan tool is an incredibly useful automotive diagnostic device, but it's not magic. Here's what it can and can't do ...

How To Clear Cummins Fault Codes (With And Without A Scanner)

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.