How Does Your Car Cooling and Heating Work?

May 7, 2021

 

Are you having trouble understanding cooling and heating problems in your car? You don’t need to worry because you’re on the right page. We’ll explain the many reasons why your A/C unit or heater doesn’t work – and what you can do about it. 

 

Common Car Cooling Problems:


 

If you have these problems, make sure you search for a “tire shop near me.”

 

Low Refrigerant Levels


 

Is your car blowing warm air – even if the A/C is all the way up? Is it making weird noises? Then it means that your car is suffering from low refrigerant levels. 

 


 

For this, you are going to need a coolant top-up. Our auto repair in Pasadena may recommend an R-134a top-up, depending on the vehicular model.

 

Clogged/Leaking Condenser


 

A problematic condenser may lead to leaks that affect the A/C’s function. Clogging, on the other hand, can severely restrict the flow of coolant into the air conditioning system. 

 


 

No matter what the cause may be, any of these issues could affect the cooling process in your car.

 

Faulty Compressor


 

The compressor powers your A/C unit. If it’s defective, it won’t be able to do its purpose of pumping refrigerant into the condenser. This place, after all, is where the coolant turns to gas. 

 


 

If the compressor has a worn-out belt – or one that easily slips out, it won’t be able to power your A/C as well. Likewise, your compressor can leak out refrigerant – which brings you back to the problem of low refrigerant levels. 

 

Common Car Heating Problems:


 

Does the temperature still feel nippy even if the thermostat is at maximum heat? You can refer any of these problems to our auto repair shop in Pasadena: 

 

Low Coolant Levels


 

Your vehicle keeps the interior warm by drawing heat from the coolant engine. The process starts with drawing the coolant from the engine block, which passes through the heater core. Then the generated heat is transferred into the cabin.

 


 

Essentially, if the coolant in your car is low, it will make the cabin colder because the engine can’t evacuate the heat as effectively. 

 

Air in Coolant System


 

Apart from having low coolant levels, air trapped in the system can impair the car’s warming efficiency. That’s because water – compared to air – siphons more energy from the engine block. Therefore, the air impairs the coolant system’s ability to generate warm air for the cabin. 

 

Erratic Heater Core


 

The heater core is a radiator that allows the coolant to circulate. At the same time, it also produces heat for the cabin. 

 


 

Suffice to say, problems in the area – such as an inefficient cooler or a clogged tubing – can lead to warming problems. 

 

Malfunctioning Thermostat


 

If the thermostat doesn’t work, the heater may not work accurately. That’s why understanding your car’s cooling and heating problems are just one part of the solution. 

 


 

It’s best to seek help from an actual auto repair, such as Crown City Tire Auto Care located in Pasadena. Our family-owned and community-based auto repair shop can help you with all your A/C or heater problems – and more!

 


To request an appointment, simply give us a call at  626-461-9165 .

 


 

April 2, 2025
We all love that fresh, clean feeling when we step into our cars, especially after a long day navigating the bustling streets of Pasadena. But have you ever stopped to think about the air you're actually breathing inside your vehicle? Often overlooked, the cabin air filter plays a crucial role in the quality of your in-car environment. At Crown City Tire Auto Care in Pasadena, we believe in empowering our customers with the knowledge to keep their vehicles running smoothly and their occupants healthy. So, let's dive into the often-neglected world of the cabin air filter and uncover the dirty truth about when it's time for a replacement. For many drivers in Pasadena and beyond, the engine air filter gets all the attention. It makes sense – it's directly linked to engine performance and fuel efficiency. However, the cabin air filter, while not impacting how your car runs, significantly affects the air you and your passengers breathe. Think of it as the air purifier for your vehicle's interior. It's designed to trap dust, pollen, mold spores, pet dander, and even airborne pollutants that can enter your car's ventilation system from the outside. Why Should Pasadena Drivers Care About Their Cabin Air Filter? Living in a vibrant city like Pasadena, CA, exposes our vehicles to a variety of environmental factors. From the seasonal blooms releasing pollen into the air to the everyday dust and smog of urban driving, our car interiors can become surprisingly contaminated. A clogged or dirty cabin air filter can lead to a host of issues, some you might not even realize are connected: Reduced Airflow: A blocked filter restricts the amount of air that can pass through your car's heating and cooling system. This can lead to weak airflow from your vents, making it harder to heat or cool your cabin effectively, especially during those hot Pasadena summers or cooler winter evenings. We've seen many customers at Crown City Tire Auto Care surprised at the improvement in their AC performance after a simple cabin air filter replacement. Unpleasant Odors: Over time, trapped particles and moisture in the filter can become breeding grounds for bacteria and mold, leading to musty or unpleasant odors circulating in your car. If you've noticed a persistent stale smell, even after cleaning your interior, your cabin air filter could be the culprit. Allergic Reactions and Respiratory Issues: For allergy sufferers or individuals with respiratory sensitivities living in Pasadena, a clean cabin air filter is paramount. A dirty filter recirculates allergens and irritants, potentially exacerbating symptoms like sneezing, coughing, and itchy eyes. Replacing your filter regularly can significantly improve the air quality and comfort for everyone in the vehicle. Strain on Your HVAC System: When the cabin air filter is clogged, your car's blower motor has to work harder to push air through. This increased strain can potentially shorten the lifespan of components in your heating, ventilation, and air conditioning (HVAC) system, leading to more costly repairs down the line. At Crown City Tire Auto Care in Pasadena, we always recommend preventative maintenance to avoid such issues. So, When Exactly Should Pasadena Drivers Replace Their Cabin Air Filter? While there's no one-size-fits-all answer, several factors can help you determine when it's time for a new cabin air filter in your vehicle: Manufacturer Recommendations: Your vehicle's owner's manual will typically provide a recommended replacement interval for the cabin air filter. This is a good starting point, often suggesting replacement every 12,000 to 15,000 miles or once a year. We at Crown City Tire Auto Care generally advise following these guidelines as a minimum. Visual Inspection: One of the easiest ways to check your cabin air filter is to visually inspect it. The location of the filter varies depending on your vehicle's make and model, but it's often located behind the glove compartment or under the dashboard. Consult your owner's manual for the exact location. Once you've accessed it, take a look. A clean filter will be relatively white or light gray. If it's visibly dirty, clogged with debris, or dark in color, it's definitely time for a replacement. We often show our customers in Pasadena their old filter versus a new one – the difference can be quite striking! Reduced Airflow: As mentioned earlier, a noticeable decrease in the airflow from your vents is a strong indicator of a clogged cabin air filter. If you find yourself turning the fan up higher than usual to achieve the same level of cooling or heating, have your filter checked. Unpleasant Odors: If you consistently notice musty or other unpleasant smells when your ventilation system is running, your cabin air filter is likely trapping odor-causing particles and needs to be replaced. Allergy Season and Driving Conditions in Pasadena: If you frequently drive in dusty conditions, heavy traffic with exhaust fumes, or during peak allergy seasons in Pasadena, your cabin air filter will likely need more frequent replacement. These conditions expose your filter to a higher volume of contaminants. Time Since Last Replacement: Even if you haven't driven many miles, the filter material can degrade over time and lose its effectiveness. If it's been over a year since your last cabin air filter replacement, it's a good idea to have it checked, especially considering the air quality in and around Pasadena. What Happens During a Cabin Air Filter Replacement at Crown City Tire Auto Care? When you bring your vehicle to Crown City Tire Auto Care in Pasadena for a cabin air filter replacement, our experienced technicians will: Locate the Cabin Air Filter: We'll identify the precise location of your vehicle's cabin air filter based on its make and model. Remove the Old Filter: We'll carefully remove the old, dirty filter. You'll likely be surprised at the amount of debris it has collected! Inspect the Housing: We'll check the filter housing for any signs of damage or excessive buildup. Install a New, High-Quality Filter: We use high-quality cabin air filters that meet or exceed manufacturer specifications, ensuring optimal filtration and airflow. Verify Proper Airflow: After installing the new filter, we'll test your vehicle's ventilation system to ensure proper airflow and functionality. Investing in Your In-Car Air Quality with Crown City Tire Auto Care Replacing your cabin air filter is a relatively inexpensive yet highly impactful maintenance task. It's a simple way to improve the air quality inside your vehicle, enhance the performance of your HVAC system, and contribute to a more comfortable and healthier driving experience, especially here in Pasadena. At Crown City Tire Auto Care in Pasadena, we're committed to providing comprehensive auto care services, and that includes ensuring the air you breathe in your car is clean and fresh. Don't wait until you notice strong odors or drastically reduced airflow. Make it a habit to have your cabin air filter checked regularly as part of your routine maintenance. We understand that life in Pasadena can be busy, and it's easy to overlook these smaller maintenance items. That's why we're here to help. Our friendly team at Crown City Tire Auto Care is always ready to answer your questions and provide expert advice on all your automotive needs. We believe that informed drivers make better decisions about their vehicle care, and we're here to be your trusted partner on the road. So, the next time you're thinking about your car's maintenance, remember the "dirty truth" about your cabin air filter. It's a small investment that can make a big difference in your driving comfort and well-being. Let the professionals at Crown City Tire Auto Care in Pasadena help you breathe easier on every journey.
Why Tire Rotations Matter in Pasadena, CA | Crown City Tire Auto Care
March 20, 2025
Extend tire life and improve safety with regular tire rotations at Crown City Tire Auto Care in Pasadena, CA. Visit us today for expert tire services!
How to Prevent Suspension Rust in Pasadena, CA | Crown City Tire Auto Care
February 24, 2025
Prevent rust & corrosion in your car’s suspension with expert care at Crown City Tire Auto Care in Pasadena, CA. Visit us for rust-proofing & maintenance!
When to Replace Your Brake Rotors in Pasadena, CA | Crown City Tire
February 24, 2025
Experiencing vibrations, squeaks, or long stopping distances? Get expert brake rotor replacement at Crown City Tire Auto Care in Pasadena, CA. Visit us today!
Why Proper Lubrication Matters in Pasadena, CA | Crown City Tire Auto Care
February 24, 2025
Ensure your engine runs smoothly with proper lubrication. Crown City Tire Auto Care in Pasadena, CA, offers expert oil changes and maintenance. Schedule your service today!
November 29, 2024
Crown City Tire Auto Care explains how seat positioning affects driving safety. Learn the importance of proper seat adjustment for optimal safety and comfort.
October 31, 2024
Crown City Tire Auto Care explains the hidden dangers of hitting potholes. Discover the potential damage and how to protect your vehicle.
September 30, 2024
Crown City Tire Auto Care explains what a catalytic converter is and why thieves steal it. Learn how to protect your vehicle from theft.
August 27, 2024
Crown City Tire Auto Care explains how far you can safely drive on a spare tire. Learn about the limitations and risks associated with using a spare tire.
July 29, 2024
Don't risk uneven wear and handling issues! Crown City Tire Auto Care explains how mismatched tires can hurt your car's performance and safety.
More Posts