Tag Archives: Radiator

Why is my car AC blowing warm air?

Why is my car AC blowing warm air?

As things begin to heat up outside, not many things could ruin a summer quite like broken AC.   As a complex system, there can be many issues with your AC system.   Air conditioning noises, not blowing cold enough, or even not blowing any air at all.  Today we'll take a deeper look at a few reasons why your car's AC is blowing warm.  Refrigerant leak: Refrigerant circulates through your AC system, expanding and contracting, removing heat from your cabin.   It operates in a closed system and won't evaporate over time, so the only way you lose coolant is via leak.   The moment refrigerant hits the atmosphere, it evaporates, so it can be very tricky to spot leaks in the system.   An auto shop will incorporate dye into your system to find the issue.  Bad Compressor: Just like our hearts pump blood, the compressor pumps and circulates refrigerant throughout your AC system.  ... read more

How a Car Thermostat Works

How a Car Thermostat Works

How a Car Thermostat Works Coolant travels through the engine and radiator, gaining heat as it moves along. The thermostat prevents coolant flow until the engine warms up to around 195-220 degrees. The thermostat responds to changes in the engine temperature.   If the engine temperature gets too hot, the thermostat opens to allow cool air to flow and cool it down. If the engine is already cool, the thermostat remains closed to stabilize the temperature. This happens because of a special thermostatic wax that expands when it reaches a specific temperature. Once expanded, this wax pushes on a rod to open the thermostat. Even though it's such a small part of the engine, the thermostat plays a huge role in preserving it. Allowing the engine to reach its operating temperature quickly saves it from wear, carbon deposits, and emissions. The thermostat allows the engine to work at its best and can improve fuel economy and help engine longevity. There are a few ... read more