Electrical Circuit Diagnostics
Your diagnostic approach needs to be well thought out, and it starts with your equipment.

Solving Nissan Performance & Check Engine Light Issues
While we don’t see the amount of coil failures we used to, it seems that the P0171 system lean code is more prevalent than it was in the past. The ECU sets this code when the system has to add more fuel than expected to maintain the desired air/fuel level.

Brake Lathes: Change Your Mindset To Maximize Brake Service
It has often been said that you should never machine new rotors. But, what if the runout exceeds the manufacturer’s specifications? This is when it’s time to machine a new rotor with an on-the-car brake lathe.

Air Update: Maintaining Your Pneumatic Tools
Professional-grade air tools can be very expensive and represent a sizable investment. But the tools can last many years with the proper care – and a clean air supply.

Top 5 Tools: Riley Bender, Riley’s Repair
Top 5 Tools Riley Bender, Owner Riley’s Repair Brackney, PA Riley’s top 5 favorite tools are: Craftsman 27-Piece Screwdriver Set “These tools have been very useful in engine repair.” Channellock’s 12” Tongue and Groove Pliers “These pliers are helpful in removing hose clips on the tubes in cars.” Pittsburgh 40-Piece Socket Set “It is

Battery Chargers & Testers – Keeping the Charge Alive
Keeping a vehicle’s battery charged and ready to go is more important than ever.

Top 5 Tools: Steve Molnar, Suburban Auto Service
Identifix, Snap-on and Matco Tools are named as the makers of this top technician’s top five favorite tools.

Diagnosing Ford EGR System Modules
The EGR system module is one of Ford’s latest EGR systems for gasoline engines. It is an EGR valve, EVR, MAP and DPFE sensor rolled into one package. Grab your scan tool, contributing writer Glen Beanard explains how to diagnose problems in these systems.

Air Update: Buying a New Air Compressor
Routine maintenance makes a huge difference in lifecycle expectancies of our tools and equipment. But even with the best maintenance schedules, you need to replace your capital investments at some point.

Humble Mechanic: Thinking Like A Diagnostic Technician
Charles’ diagnostic processes may be very different from yours, which may be very different from the tech that works next to you. But the end goal is always the same: Fix the car right the first time, and do it as fast as possible.

Leak Detection Equipment & Tools
Get the low-down on the tools and equipment you need to help you find leaks in four main vehicle systems.

Pulled a P0171 Code? Humble Mechanic Helps Explain It
Too much air or not enough fuel at the engine. System lean is not hard to diagnose, once you understand it.
