When engineers came up with the idea of putting the wheel speed sensor (WSS) and tone ring inside a sealed wheel bearing hub assembly, it seemed like a great idea. The sealed environment would help protect the sensor and make it less vulnerable to damage or contamination from the outside world.
Following her graduation from high school last year, Rachel Fonseca has continued down the automotive service road.
All types of antifreeze contain corrosion-inhibiting chemicals to protect bare metal surfaces from electrolytic attack. Though automakers disagree on which chemical additives work best in their vehicles, essentially any kind of antifreeze will work in any vehicle. But, how well will it protect the cooling system? And, for how long? And will it void the OEM warranty? These are important questions that need to be answered before choosing an antifreeze for a particular vehicle application.
This month’s pop quiz addresses the chassis system. Choose the answer that best completes the following statements or questions.
(Note – Answer key provided following the Pop Quiz – answers in bold.)
Across 1. Technician’s diagnostic drive (4,4) 5. Spindle synonym, ____ axle 9. Timing-belt alternative 10. Combination-wrench section (4,3) 11. Piston’s TDC to BDC travel 12. Fuel reservoirs 14. Adjective for auto-electric current 16. Negative battery cable 19. Item in power-window system 21. Intake-system item 24. Roadster accessory, ____ cover 25. Right-angle hydraulic or fuel fitting
Aspiring auto technicians and rising seniors, Justin Dwyer and Matthew Ludwig from Faribault High School in Faribault, MN, recorded the best score in the 2009 Ford/AAA Student Auto Skills National Finals.
In school, I took physics and wondered if I would ever use any of the scientific stuff. All of that stuff is kind of important if you want to know how altitude can affect the performance of a vacuum brake booster, engine, your body and a whole lot of other devices.
— Sure, you may wear them in the auto lab, but are your disposable gloves the right ones for the job?
The interest in diesel performance has been growing. Bolt-on performance packages for diesel-powered pickup trucks can easily add 75-150 horsepower or more for everyday driving and towing. While pulling has been the traditional use for diesel-powered tractors and trucks, diesel-powered vehicles are now winning races and setting records in venues that have long been the exclusive realm of gasoline-powered engines.
Unless the chassis anti-roll bar — also called the sway bar or stabilizer — is making noise, it tends to be missed when the suspension is serviced. Here’s how to provide a proper undercar inspection to the Sway Bar components.