As you head out for the day, or even a family road trip, you encounter all types of weather. The factory HVAC system in your Lexus car or SUV cools, heats, and ventilates your passenger space during that drive, keeping you comfortable no matter the outside temperature.
How HVAC Systems Work
Heating is simple. Hot coolant gets drawn from the engine into a heater core. A front-mounted fan blows over the core, sending the warm air into the cabin.
Cooling is more involved. Refrigerant gets pressurized in a compressor and turns into hot gas. A condenser cools that gas and transforms it back into a liquid. That liquid then flows through the expansion valve where it's converted back into a gas, but a low pressure one at this point. Lastly, an evaporator cools the gas down and a fan blows that chilled air through the air vents and into the passenger space.
How to Spot AC System Issues
You'll likely be able to tell when you're having trouble with your HVAC system once things get bad enough. Signs of failure include:
- A steamy cabin atmosphere
- You detect the syrupy sweet smell of coolant
- You're unable to maintain a consistent cabin temperature
- You hear a whistling sound coming from the air vents
Buy Genuine Honda AC System Parts Online
Some of these symptoms can also be attributed to a bad cabin air filter, so check that first. If it's in good shape, examine your entire HVAC system Ð including the hoses. When you do find the source of the problems, you'll want to replace them with the best components for your vehicle. Those are the ones that are made by Lexus, since they're the only ones that are guaranteed to be compatible with your model. Our online auto parts store has everything you need for the job. Buy now and we'll ship your order directly to your home!
No results found for "ac, air conditioning, hvac, heating, cooling". Here are some helpful search tips:
- Search by a part name. Example: water pump.
- Be less specific. Example: brake instead of ceramic brake.
- Remove information such as make, year or model.
- Can't find the part you are looking for? Contact us and we'll find it for you!