Climate Control Archives - Page 13 of 13 - TechShop Magazine
Flashing Signals / Reprogramming PCMs

You don’t have to be Microsoft A+ certified to flash reprogram automotive PCMs, but the process requires a certain amount of know-how as well as special tools and access to the latest OEM software upgrades (which are not free!). What’s more, it’s not a risk-free endeavor. Certain precautions must be undertaken before you begin, and

A/C Update: Keeping the Black Death at Bay

Over time, moisture contamination in an A/C system will form corrosive acids that attack metal surfaces and break down the lubricating qualities of the compressor oil. The result is a dark-colored sludge called “Black Death” that can gum up the orifice tube or expansion valve and ruin the compressor. How does moisture get in the

A/C Service: The Heart of the Matter

The heart of the business, feel the heart beat, he has a good heart. These familiar thoughts and sayings all refer to the same thing. Whether it is a figurative or literal reference, the message is the same. There is always a central and irreplaceable part or component or, sometimes, person to all things. This

A/C Update: Bad A/C Blowers & Fuses

One component air conditioners and heaters share in common is the blower motor. The blower motor is usually located in the Heating, Ventilation and Air Conditioning (HVAC) housing under the dash. The blower motor spins a squirrel cage fan that delivers both cold and hot air. If the driver wants cold air and turns on

The Future Of Climate Control

What Role Will Alternative Refrigerants Play? There has been a lot of discussion lately about the future of automotive refrigerants and their impact on the environment. Ozone depletion is no longer the main concern. Now it’s global warming. Last year was the warmest year on record. Average temperatures all across the globe are on the

AC Update: Finding and Fixing Leaks

Finding refrigerant leaks is a major aspect of A/C service. It makes no sense to recharge a leaky system with refrigerant if it will soon leak back out. Ultraviolet dyes can make even the smallest leaks clearly visible. But not all OEMs approve of their use. The domestic OEMs (Ford, GM and Chrysler) all use