When a mobile A/C system needs to be repaired, the first step taken is usually to recover the refrigerant from the system for reuse later. An A/C vacuum pump is used to remove unwanted air and water vapor when it
How to Vacuum an Automotive A/C
How Does a Windshield Defroster Work?
Fogged up, “unclear” windows are not just an inconvenience, they present a “clear” driving danger. When the air temperature inside a vehicle is warmer than the temperature outside, the water molecules inside the cabin can go through a process of
A Tutorial Guide to Manifold Gauges
Before servicing a vehicle, confirm system refrigerant type. Cross contamination of refrigerants can cause damage to A/C system, service tools and equipment. GENERAL MANIFOLD INFORMATION: The right (red) side of the manifold is the high side and the red gauge
Find Your Low Side Service (Charging) Port
An automotive air conditioning system is a closed loop. As the refrigerant moves through the system it is subject to pressure variations. This pressure changes the phase of the refrigerant from liquid to gas and back again. As these phase
A Layman’s Guide to Automotive A/C
Automotive air conditioning is a self-contained system which cools the cabin of a car by changing the phase of refrigerant from gas to liquid and back again by applying and releasing pressure on it. Each of the parts of the
Coolant? Refrigerant? What’s the Difference?
When you’re in the A/C business (like we are) the distinction between coolants (antifreeze) and refrigerants is abundantly clear. However, so many people ask us to distinguish between them that we’ve decided to set the record straight once and for
Tips for Charging Automotive Air Conditioners
Most people assume if their A/C is blowing warm that they are low on refrigerant. However, this is not always the case. Therefore, when charging A/C systems it is recommended to evacuate the system before adding refrigerant. This is because
Manifold Gauge Set Q & A
Manifold Gauge Set Q & A What is an A/C manifold gauge set? An A/C manifold gauge set is a service tool which enables techs to keep a close eye on the pressure in an air conditioning system and regulate