Whether you used a fuel pressure gauge or relied on the Fuel Rail Pressure PID on your scan tool, a reading of zero when testing fuel pressure is a bad thing. What are your next steps? Do you jump the relay to see if the pressure builds? Do you use an amp probe and a...

While diagnosing an electrical issue last week, I suspected that the battery was tired. The terminals were banged up, the case was covered in grime, and the manufacturer’s decal was peeling and faded. It barely passed a quick health check, so I started looking for a...