GM AC Compressor
Have you ever experienced riding your GM vehicle on a hot humid summer day with
a defective air conditioning system? Maybe the whole time you were driving or
riding, you keep on murmuring words like how uncomfortable it is and that your
hands are already paining from fanning yourself. Don’t let this happen by checking
your GM vehicle’s AC system regularly. The air conditioning system of your GM
vehicle is composed of various components. And you must see to it that all these
components of your air conditioning system are in good working condition just
like the GM AC compressor.
The AC compressor is called the heart of the air conditioning system of your
GM vehicle as it pumps the refrigerant of the vehicle’s air conditioning system
throughout the other parts of the AC system in a closed loop. When the AC compressor
compresses the gas, it gets quite hot and when it becomes very hot, the outside
air is cooler and heat then can leave the gas. And when this gas cooled, it condenses
into a liquid and this phase change makes it hotter. As the refrigerant loses
huge amount of heat, the liquid is then sent to the evaporator, then through the
expansion valve where it finds low pressure and evaporates. a lot of heat energy
is required during evaporation so the vapor gets cold. This phase change from
liquid to gas is the one that causes the temperature to change. This cold gas
vapor chills the evaporator, and your GM vehicle's blower blows air through the
cold evaporator and into the interior. And then the refrigerant goes back through
the cycle again and again.
Basically, the GM AC compressor is a pumplike thing off to one side with large
rubber and steel hoses going to it. It often has one or two things that look like
the valve stems on a bike tire, but it will not have a filler cap on it. On the
front of the compressor, there is an outer pulley and an inner hub which turns
when an electric clutch is engaged. If the air conditioning unit is on and the
blower is on, but the center of the pulley is not turning, this means that the
GM AC compressor's clutch is not engaging. This indicates a wiring problem, a
bad fuse, a broken AC switch, or the AC system could be low on refrigerant. It
is best to have a mechanic check your AC system, and if the AC compressor is damaged,
you should purchase a replacement GM AC compressor right away.
