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Lessons in BMW Variable Capacity A/C Systems

Despite the many advances in A/C systems during the past 10 years, it’s important for technicians to understand basic theories of operation. Understanding how a system moves heat from the confined space of the passenger compartment and dissipates it into the atmosphere will assist the technician in analyzing system failures and performing the required maintenance

Restoring Engine-Computer Communications

For this month’s Real World case, we will attempt to provide a plan of attack for communication issues on General Motors products with the Class 2 Protocol. Our diagnostic journey begins with a 2004 Chevrolet Tahoe. This vehicle was tested at the EPA test facility in our area and it was determined that there is

Automotive Definitions

The following are key words and phrases used in articles that have run in Tomorrow’s Technician magazine. This helpful reference guide can be printed out and added to your class notes. We will continue to update this list.

Instructor Insight: Checking Out The Causes of Check Engine Lights

Replacing O2 sensors when replacing spark plugs is a good habit

Under the Hood: Hybrid Engine Technology Interchange

Toyota’s Synergy Drive System Under a Nissan Hood

GM Smart Charge

Review older GM systems and keep your voltage levels out of the red and your profits in the green.

Duramax Diesel Diagnostics

Tony Salas, an ADS endorsed instructor, gives you a complete overview of the Duramax diesel engine and components from a technicians point of view.

FRED on Evap Tip Clip

In this Tip Clip Dave Hobbs talks about EVAP and FREDS, you know Frustrating Ridiculous Electronic Devices, things like PCM’s and ECM’s. He talks about the logic of how these devices control the operation of the vehicle’s evap system. He discusses how the ‘brain’ of the evap system handles things like the operational nature of the evap system such as purge. He also goes into detail regarding how the FRED also handles the regulatory side of things such as EPA guidelines and leak tests.

Quick Quiz: Duramax Diesel

Do you know everything you need to know about Duramax engines? Do you know about the sensors, cooling systesm, ECM and FICM? Well this quick quiz does not cover everything you need to know but it does get you thinking.

Hybrid-Electric Supercar with Microturbine Technology Debuts at LA Auto Show

The Capstone microturbine is essentially an ultra-clean and quiet jet engine under the hood. This prototype hybrid-electric supercar with microturbine technology will debut at the LA Auto Show Dec. 2-13.