GMC Sierra 2500 HD A C Compressor and Clutches
Nothing can replace the convenience of an air conditioning assembly thats in top shape. Here, you can pick out compressors and clutches to replace or repair your trucks A/C unit with stock from reliable manufacturers for all years of the GMC Sierra 2500 HD pickup truck.
What is a compressor, and what does it do?The compressor is the heart and soul of your Sierras A/C system, functioning to pressurize a coolant gas into a frigid liquid that absorbs ventilation heat from an exchanger. This chills the air as its passing through the ventilation ducts, blowing cold air into the vehicle cabin.
What does the compressor clutch do?In your GMC Sierra 2500HD, the A/C system utilizes a clutch thats functionally identical to the type used in manual transmission systems. It effectively works to switch engagement modes in the compressor, shifting between low and high power modes as well as on and off states. In most vehicles, the clutch will drop the power consumption or temporarily shut off the compressor when the air has reached a certain temperature or when the system needs to rest. Without this component, your Sierras A/C would not switch between high and low outputs or power on and off properly.
Does it matter if the compressor clutch is healthy?Yes. Many parts of your trucks internal system indirectly depend on the clutchs ability to stop the compressor from overexerting itself. A compressor clutch that can effectively disengage the A/C will save on diesel fuel and limit the general wearing of the engine components over time.
How should you care for your compressor clutch?By using the A/C in your Sierra 2500HD for around 15 minutes a month, you can preserve the mobility in the servos and keep the line seals intact. Stagnation will result in brittleness and sticking, which can lead to leaks. A little exercise for your A/C will prevent this by getting the clutch and other components in motion again.
Are there different kinds of A/C units?Your GMC Sierra uses only one kind of air conditioning system. This is due to the relatively simple nature of the A/C system thats employed in this truck, and all parts are designed to be used within the specifications of the Duramax flywheel. However, this also makes it quite simple to find the parts you need.