Technical Editor
Servicing European Brakes

Rotors for high-performance vehicles are more likely to be drilled, slotted and treated with a coating. Be sure you know how to handle them.

Tips for Replacing U-Joints

It’s better use finesse when replacing u-joints, otherwise, you may see it again when the customer complains of a vibration.

u-joint
Spark Plug Failures & Replacement Challenges

While many spark plug failures stem from improperly applying torque to the plugs when they are installed, there are a variety of reasons why they may fail.

Diagnosing Throttle-By-Wire Problems

Sophisticated electronic control modules, sensors and actuators make up throttle-by-wire systems, with plenty of advantages, but diagnosing trouble takes a bit more sleuthing than in the old days.

Brake Pad & Rotor Matching

There are a few things a shop can do to keep the dreaded comeback from happening. Start by making a policy that all of your techs must check for runout after installing any rotor.

brake pad and rotor matching
Wideband Sensors vs. Narrowband — Understanding the Differences

One of the main reason’s manufacturers are going to wideband AFR sensors is because the heater channel comes up to operating temperature quicker — as fast as 10 seconds, in some cases. However, wideband sensors also need to be heated to higher operating temperatures to function effectively.

Cranky Crankshaft Position Sensors

A crank position sensor is an electronic device used to monitor the position and speed of the crankshaft. Without these sensors working correctly, there’s little chance the engine will run, let alone fire up at all. When there’s a problem, it’s not always apparent where it lies, so some basic understanding of how the crank sensor works can go a long way toward solving the issue.

Diagnosing Turbo Boost and Leak Problems

If you get a vehicle in that is not generating enough boost, don’t automatically assume it is the turbocharger. Modern turbochargers rarely fail due to problems with the internal clearance or with the turbines and shafts. Here’s what to look for when diagnosing vehicles with turbocharged engines.

Oxygen Sensors: What Happens When O2 Sensors Age or Die?

Oxygen sensors are one of the most critical components of a modern engine because of their role in controlling the fuel-injection system and emissions coming from the tailpipe. Here’s a primer to help understand these sensors and their functions.

Inspecting Brake Hoses to Help Prevent Failure

Most hydraulic brake hoses are made to handle extreme conditions, but sometimes they do fail. After all, most brake hoses live in a tough environment. The best way to prevent failures is by performing a thorough physical inspection with your hands and eyes (and sometimes even your feet).

Alternator Ripple Testing: The Ghost in the Machine

Excessive ripple voltage can cause communication issues with networks and communication DTCs in multiple modules. Here’s what you need to know.

Finding Hidden Suspension Damage

Worn or damaged tie rod ends, ball joints, upper and lower control arm bushings, and other steering components can cause steering-related issues. A worn or bent steering rack can also create alignment headaches. But, most of these are due to wear and tear, not bent or broken components.