Buick LeSabre AC and Heater Controls
Buick introduced its full-size vehicle, the LeSabre, for the 1959 model year. This car had a long run through eight generations until it was discontinued after the 2005 model. Even with the reliability the Buick name evokes, regular upkeep on items such as Buick LeSabre AC and heater Controls are bound to occur from time to time.
Why is air only coming out of some vents?If you have noticed that the air isnt circulating evenly through the vents in your Buick LeSabre, its likely due to a failing temperature control module. This part manages and guides the temperature and flow of air through your cars HVAC system. If it is not working through all of the LeSabres vents or settings, it is time to get it checked.
Why might the Buick LeSabres AC system overheat?Your LeSabres AC system will begin to overheat as you drive if its control switch begins to go out. This switch controls the Buicks circuitry that connects the switches to the internal workings of the system. If theres a short, then the cars AC control will start overheating. As a result, the other parts of the Buick LeSabres system may get hot as well.
Why is the Buick LeSabres heater blowing cold air?Theres a strong possibility that your vehicles blend door actuator needs be replaced. The LeSabres actuator is the motor that controls the vent doors. It combines the hot and cold air requirement it received through the temperature control and sends it out through the vents. If the air in your Buick is not calibrated correctly, the actuator is a logical place to start.
Does the LeSabre have a blower resistor or control module?That depends on the year of your Buick LeSabre. If your vehicle has the manual temperature controls, then it requires a blower motor resistor. On the other hand, if your late model Buick has digital or automatic controls, it uses a blower control module. The end result of each part is that it controls the temperature in your car; however, they are wired differently.
What does the Buick LeSabres blower control module do?Your Buicks AC pressure control switch keeps track of the coolants pressure at the high and low end of your cars unit. If you notice that the Buick LeSabres system has started turning on and off rapidly, or the compressor doesnt engage, its time to service the unit.
You can add longevity to the life of your LeSabre AC unit by keeping track of the pressure switchs maintenance. Your LeSabres system can be damaged if it doesnt have enough oil, or is running lower or higher than normal.