We earn commissions from purchases you make using links in our articles. Learn more. If your car or truck’s check engine light is on, there’s a stumble when accelerating, or if the transmission just ...

We've all been there: you're driving along, minding your own business, when all of a sudden your check engine light comes on or you begin to hear a mysterious rattle that you can't quite identify. At ...

You hear a new, disturbing noise coming from your engine, open the hood, look around, and find nothing. Now what? Before you reach for a conveniently-placed torque wrench to try the ol’ “love tap,” ...

The Harbor Freight MADDOX back-probe kit lets DIYers test automotive sensors safely. Just insert between wire and insulation, ...

This month we will be concentrating on diagnosing a clogged fuel injector using data from a can tool. Diagnosing a clogged injector is not always easy because the symptoms act similar to low ...

Ever since OBDII vehicles became the norm, anyone interested in repairing them must have a scan tool at hand. Some people refer to those devices as scan tools, diagnostic machines, or OBD dongles. In ...

Automotive repair tools can be extremely pricey, especially tools from professional brands like Snap-On, Matco, and Cornwell. These prices are understandable, as pro-tier tools are designed to last ...