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Posted: 07/05/2022

Top 5 Signs Your Vehicle’s AC Needs Repair or Replacement


When the weather is hot and muggy, there's nothing more refreshing than air conditioning. However, if your car's AC isn't working properly, it can be a real headache. In this blog post, we will discuss five signs that indicate that your vehicle's AC needs repair or replacement. Keep an eye out for these signs to avoid a summer of misery!


How Does an AC Work?


Before we get into the signs that your AC may need repair or replacement, let's first take a quick refresher on how air conditioning works. Air conditioners work by circulating refrigerant through a closed-loop system of evaporator coils and condenser coils. 


The refrigerant absorbs heat from the air inside your car, causing it to evaporate. The air conditioner's compressor then pumps the refrigerant to the condenser coils, where it releases the heat and condenses back into a liquid. 


This process continues until the desired temperature is reached. Now that we know how air conditioning works, let's take a look at some common signs that indicate it needs repair or replacement.


Sign Number 1: Weak or No Airflow


If you notice that the air coming from your car's vents is weak or nonexistent, this is a sign that there is a problem with the air conditioning system. There are a few potential causes of this issue, such as a clogged air filter, low refrigerant levels, or a problem with the blower motor.



blower motor





If you notice weak or no airflow, be sure to take your car to a professional technician so they can diagnose and fix the problem.


Sign Number 2: Warm Air


Another sign that there is an issue with your air conditioner is if the air coming from the vents is warm instead of cool. This could be due to a number of different issues, such as low refrigerant levels, a faulty compressor, or leaks in the air conditioning system. 



ac pro





If you notice that the air from your AC vents is warmer than usual, it's best to take your car to a technician so they can determine the cause of the problem and make the necessary repairs.


Sign Number 3: Bad Smells


If you notice bad smells coming from the air conditioning vents, this is a sign that there is mold or mildew growing inside the system. This can happen if the air conditioner isn't used often, or if it isn't properly maintained. 


If you notice musty smells coming from your car's AC, be sure to take it to a professional technician so they can clean the system and get rid of the mold or mildew.


Sign Number 4: High Humidity


Another sign that your air conditioner isn't working properly is if you notice high humidity levels inside your car. This could be due to a clogged air filter, an issue with the evaporator coils, or a problem with the drainage system.



If you notice high humidity levels inside your car, be sure to take it to a professional technician so they can diagnose and fix the problem.


Sign Number 5: Strange Noises


If you notice strange noises coming from the air conditioning system, this is a sign that there is an issue with one of the components. Common causes of noise include a loose belt, a problem with the compressor, or leaks in the system. 


If you hear any strange noises coming from your air conditioner, be sure to take your car to a professional technician so they can determine the cause of the problem and make the necessary repairs.


We hope this blog post has been helpful in identifying some common signs that indicate your vehicle's AC needs repair or replacement. Remember, if you notice any of these issues, be sure to take your car to a professional technician so they can diagnose and fix the problem. 


A Full AC Replacement


If you're considering replacing your air conditioner, your technician may recommend replacing more than just the compressor. 


Complete A/C kits, like the ones offered from Four Seasons, include all of the components necessary to do a complete compressor replacement all while extending the overall life of the new compressor: 


  • New Compressor

  • Accumulator or Receiver/Filter Drier

  • Expansion Device

  • Oil

  • All Necessary O-Rings and Gaskets

  • Tamper Evident Strap and Underhood Label



An AC replacement kit from Arnold Motor Supply can make all the difference, and they're available right now.



ac replacement kit





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Arnold Motor Supply has been a leading supplier of auto parts since 1927. Founded and based in Iowa, we have auto parts stores all over the midwest. Order auto parts online and you'll be notified via email once your purchase is ready for pickup at your local Arnold Motor Supply or Auto Value parts store. 



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