By Steve Schaeber, MACS Technical Editor Checking the Accessory Drive Belt System (ABDS) is one of the most basic preventative maintenance procedures we do as technicians. Most of the time,…
By Keith Leonard, Esq. “Necessity is the mother of invention” is an idiom at least dating back to Plato in his seminal work, Republic, and meaning necessity gives rise to…
By Steve Schaeber, MACS Technical Editor Replacing the accessory drive belt is one of those things that usually falls under the periodic maintenance category, and is something that technicians learn…
Contaminated or unknown refrigerant must be removed from a system using dedicated recovery-only equipment, and properly disposed of.
Whenever you hear the term refrigerant contamination the first thing you probably think of is mixed refrigerants. However, the most prevalent contaminant, particularly in recycled refrigerant, is air. What…
Over the last few years, due to trends in styling, many newer cars do not have conventional grills up front. Very often, a closed panel resides, or the hood extends down to where a grill would have been. But all vehicles still depend on air passing through the radiator to provide engine cooling, and also for A/C system operation.
This particular cabin air filter came from a Volvo class 8 truck and it hadn’t been changed for three years! It was retired in favor of a replacement. We wanted to share this photo with you to show you how cabin air filters do their job
The water pump is the heart of the cooling system. It circulates the coolant through the engine, radiator and heater core. These days, certain vehicles (like some SUVs, vans and most hybrids) often have more than one water pump, and the auxiliary pumps are usually run by electric motors and controlled by a computer.
The purpose of desiccant in a mobile air conditioning system is to absorb and hold
moisture. Moisture in a system (above an acceptable level) can lead to corrosion and
degradation of the lubricant.
If on a humid day, you turn on your car’s A/C system and a fine mist blows out of the vents, don’t be alarmed.
/C system odors typically result from uncontrolled growth of bacteria and other microorganisms in the evaporator part. Nasty little beasts like aspergillus, cladesporium and penicillium grow on cooling coils and other areas. How do these beasts get there?
They are naturally present in outdoor air and are drawn into the system through the evaporator during system operation.
