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A Helpful Guide To A Healthy Car AC

Your car's AC is one of its most important features during the summer months. A properly functioning AC can keep you and your passengers cool and comfortable, even on the hottest days. However, if your AC isn't working correctly, it can be a massive headache.

Our experts from Glendale Nissan will explain what can go wrong with your AC and offer some handy tips. Stick with us!

What Can Go Wrong?

A few things can go wrong with your car's AC. The most common problems are:

  • A dirty air filter can cause the AC to work less efficiently, and it may even start to smell bad.
  • A blown fuse will prevent the AC from working at all.
  • Leaking refrigerant gas can prevent the AC from working correctly and damage the car's engine.
  • A clogged condenser will prevent the AC from cooling down the vehicle.

Signs To Be Mindful Of:

Your automobile talks to you, and listening is up to you. These are two unmistakable signs of AC issues:

No Cold Air: If the temperature gauge shows no change in temperature while the AC is running on full blast, it could mean there's a leak somewhere in the system or something else has gone wrong with it altogether.

A Squealing Sound When Turning the AC On/Off: It can be caused by an issue with one of these components: compressor clutch bearing, belt tensioner bearings, idler pulleys, or blower motor bearings (if equipped). The ideal way to fix this problem would be to replace them all.

These are just some of the many things that can go wrong with your car's AC unit. But don't worry! There are plenty of ways to troubleshoot these problems yourself before taking your car in for repair.

  • Check the compressor clutch. If it's not engaging, there might be something blocking it or preventing it from turning on.
  • Ensure the belt is tight and in good shape. Loose belts can cause all sorts of problems with your AC unit.
  • Check the bearings on the tensioner, idler pulleys, and blower motor (if equipped). If they're worn out, you'll need to replace them.

Prepare Your Car In Advance:

Haven't you heard, 'prevention is better than cure'? While there are many ways to troubleshoot problems with your AC, there are also several preventive measures you can take.

Maintain a Clean Cabin Filter: The cabin filter is a small part located in the passenger side footwell that helps keep dust and other particles from getting into your car's ventilation system. Make sure this stays clean by replacing it every six months or so (depending on how often you use your AC).

Stay On Top Of Maintenance Checks: Your mechanic should be doing these for you, but sometimes they don't always get done when needed. Stay aware of what needs servicing and have someone do it before things go wrong with any part of your vehicle!


Before stressing yourself out about a non-functional AC, talk to one of our professionals. Glendale Nissan, serving Highland Park, CA, will inspect your vehicle and get you back on the road in your cool car in no time.

You can also purchase a new AC compressor through our parts department. We have a wide variety of auto parts for you to choose from.

Schedule your service today!


A Helpful Guide To A Healthy Car AC - Glendale Nissan

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