Dodge Ram Air Conditioning Problems – What are the Causes And Solutions?

Dodge Ram air conditioning problems are crucial to fix, especially if you live in a place with a hot climate. The most common causes of a faulty air conditioning system are a bad evaporator, blown fuse, and dirty air filter.

Dodge Ram Air Conditioning Problems - Common Causes And Solutions

However, there are several other causes of this problem, so a proper diagnosis is required. This article discusses the common causes and solutions for a Dodge Ram with AC problems.

What Are the Common Causes of Dodge Ram Air Conditioning Problems?

The common causes of Dodge Ram air conditioning problems include a bad evaporator, dirty air filters, and a faulty blower motor. The problem could also result from bad compression or a defective expansion valve. If you’re unsure of what the problem is, bring your car to an auto repair shop.

– Bad Evaporator

One of the most prevalent reasons why your AC isn’t blowing cold is because of a bad evaporator. The evaporator works by absorbing heat and humidity from the air and distributing it to the car through the blower fan.

This car part can become damaged due to a refrigerant leak, corrosion, or a clogged air filter. You’ll notice that your AC air isn’t consistent in this case. You may also notice that the air conditioner blows hot air or gives off a strange odor.

– Faulty Blower Motor

Another common reason your air conditioner doesn’t work perfectly is a faulty blower motor. Also known as the blower fan motor, it pushes cold air from your AC vent to your vehicle’s cabin.

The blower fan motor can develop a fault if it gets overheated. When there is a buildup of grime and dirt, it can cause the bearings to burn out.

What Are the Common Causes of Dodge Ram Air Conditioning Problems

Exposure to excessive moisture can also cause corrosion, damaging the blower fan motor. A common symptom of a faulty blower fan motor is little to no airflow from the AC unit. You’ll also detect a weird noise or vibration from the air conditioner.

– Blown-Out AC Fuse

A blown-out AC fuse also contributes to a defective cooling system. The AC fuse protects the condenser from excessive amperage. However, this fuse can give way to wear or get blown out due to a short-circuiting or burnt wiring connection. It can also become damaged due to an excessively high AC pressure or a defective compressor clutch.

A sign that your AC fuse is bad is that you hear a humming sound anytime you turn on the AC. You may also notice ice buildup around the coil. A burnt smell is also an obvious sign of a bad fuse.

– Refrigerant Leak

If your car AC isn’t working properly, it could be a problem with your refrigerant. The refrigerant is responsible for expelling heated air from the inside of your car outside so that cool air circulates through the vent.

However, refrigerants are not supposed to leak due to their enclosed storage system. Pinholes can cause leaking refrigerants in the AC coils. This leak can also result from worn-out AC components like rubber seals, connectors, or access fitting.

When refrigerants start leaking, you’ll notice that your AC is blowing hot air or doesn’t work. You’ll also hear an unusual hissing sound and notice water leaking from your AC unit.

– Dirty/Clogged AC Filter

A dirty or clogged AC air filter is a common reason for a faulty air conditioner. You may need to check your air filter if you notice inconsistent or warm air blowing from your AC.

The air filter is responsible for cleaning the air that goes through your cooling unit. However, these can get dirty and clogged with debris and dirt buildup.

When this air filter is damaged, it will affect the performance of the AC unit. Symptoms of a dirty/clogged AC air filter include air conditioner leaking water, AC blowing warm air, and excessive noise. You may also notice a surge in your utility bill.

– Blocked Condenser

A blocked AC condenser also contributes to a defective AC system. This component can get blocked due to debris or dirt buildup. It can also get blocked when an object is lodged in the condenser, preventing its fins from moving properly.

When this blockage happens, your car’s AC will not work properly. Symptoms of a bad condenser include abnormal noises, reduced efficiency, coolant leak, and a burning smell in some cases.

Take note that a vehicle can work without an AC condenser. However, the defrosting setting will not work well. Hence, your AC system may not function optimally, which can be uncomfortable on warm days.

– Failed Compressor

A failed compressor is also responsible for AC-related issues. It compresses the refrigerant and increases its pressure, resulting in high-pressure air. Oil pump defects or oil leaks can cause compressor failure. Dirt and corrosion are also common causes of a bad compressor.

When your compressor is damaged, it will result in diminished airflow. You’ll also notice that your AC system is increasingly noisy, and in severe cases, you won’t be able to start the AC.

– Defective Blend Door Actuator

The blend door actuator is an AC component that controls your car’s temperature or climate system . This actuator can be damaged due to wear or connector issues.

Defective Car Door Actuator

Once the actuator becomes defective, you’ll notice an inconsistency in the airflow and temperature of your car. You’ll also notice that your car’s AC makes weird noises and stops working.

– Malfunctioning Expansion Valve

A malfunctioning expansion valve is why your cooling unit might have issues. The expansion valve is the component that regulates the flow of refrigerant to the evaporator. This component will most likely malfunction if your compressor has a problem.

It can also malfunction when there’s an excessive refrigerant flow on the AC unit. The most common sign of a bad expansion valve is a loud, squealing AC system.

What Are the Solutions to Dodge Ram Air Conditioning Problems?

The solutions to Dodge Ram air conditioning problems include replacing the bad evaporator, fuse, and blower fan motor. Replacing bad compressors, sealing pinholes, and cleaning all dirty or clogged components also help to eliminate this problem. It’s important to carry out regular maintenance to avoid having this problem again.

In the meantime, while your Dodge Ram air conditioning problems are being diagnosed, you can keep your car cool without an AC by rolling down the car windows and parking under a shade. You can also get a portable AC system and place it inside your car’s cabin.

– Replace Bad Evaporator

Consider replacing your evaporator once it is diagnosed to be the cause of the problem. Replacing the AC evaporator is a gruelling process that can take hours, even for a certified mechanic. If your evaporator is defective, it’s best to leave the repairs to the right person (mechanic/auto repair shop) to handle it.

– Replace Blower Fan Motor

If your car’s AC is having issues, you may need to replace the old blower fan motor with a new one. Although replacing a blower fan motor is straightforward compared to evaporator replacement, we recommend leaving it to a professional. You don’t want to destroy other components in the repair process.

– Replace Blown-out Fuse

You should check your AC fuse to be sure it isn’t burnt out. If it is, replace it with a new one as soon as possible. The fuse can be in a box underneath your car’s dashboard or the engine bay. You need to remove the old fuse and replace it with a new one.

Also, inspect the wirings to be sure they are in good condition. If the wires look frayed, broken, or burnt, you should replace them immediately.

– Seal Pinholes

Pinholes are the cause of coolant leaks. To fix this problem, you’ll need to locate them on your AC unit and seal them immediately. There are a wide variety of leak seals you can purchase from automobile stores for these repairs.

Solutions to Dodge Ram Air Conditioning Problems


However, before using them, you must ensure they are produced by a reputable brand and have good reviews. Once you seal the leaks in your refrigerant system, your AC should start working as well as a new one.

– Clean Clogged AC Air Filter

You should also clean your air filter if it’s clogged with dirt or debris. Fortunately, cleaning an air filter is easy; you only need to locate the air filter compartment. You can check your owner’s manual if you are unsure where it’s located. Disconnect the air filter from its housing or harness and spray with an automobile cleaner.

Let the spray sit for about 15 minutes before you finish it with a garden hose or faucet. After that, let the air filter dry thoroughly and apply fresh oil if needed before installing it back in its compartment.

– Clean Clogged Condenser

You may also need to clean your AC condenser if it is clogged with dirt and grime. Cleaning a dirty condenser follows the same method as cleaning an air filter. Locate the condenser and use white vinegar or automobile cleaner to eliminate grime buildup. After cleaning it thoroughly, you can test your AC to be sure it’s working well.

– Replace Bad Compressor

If carrying out all the above recommendations doesn’t work, you may need to change your car compressor. Changing a car’s AC compressor can be pretty technical, especially if you lack the skill and the right tools.

You should bring your car to a professional mechanic to do the repairs. Once your compressor works well, your expansion valve should work perfectly.

Frequently Asked Questions

– Is It a Good Idea To Buy a Ram 1500 With AC-related Problems?

No, it is not a good idea to buy a Ram 1500 with AC-related problems. Unless you have enough cash to spare for extensive repairs and replacements, there’s no reason why you should get a vehicle with a faulty AC system.

– How Do Leaks Occur In Your Ram 1500’s AC System?

Leaks can occur in your Ram 1500’s AC system when it’s worn out from constant use. In this case, the rubber seals can break or corrode, leading to a coolant leak. This leak can damage other essential parts of your AC system if left unchecked.

Dodge Ram Air Conditioning Problems Causes and Fixes Conclusion

Can Parking Sensor Error Affect the Air Conditioning in a Dodge Ram?

Can diagnosing parking sensor errors affect the air conditioning in a Dodge Ram? It is unlikely that the process of diagnosing parking sensor errors would have any direct impact on the air conditioning system of a Dodge Ram. The two systems are separate and should not interfere with each other’s functioning. However, it is always best to consult a professional for a comprehensive evaluation.


There are several reasons why you’re dealing with AC-related problems.

Here’s a summary of the key points discussed in this article:

  • Knowing the causes and solutions of Dodge Ram air conditioning problems is essential for car owners with a problematic AC unit.
  • The main causes of AC-related problems include a bad evaporator, failed compressor, and a blown-out fuse. Clogged air filters, condensers, and a faulty expansion valve can also cause it.
  • You can fix this problem by replacing the evaporator, compressor, fuse, wires, and sealing pinholes. You should also clean your air filter and condenser as soon as possible.

Now that you know what causes Ram 1500’s AC issues, you should be able to carry out necessary repairs immediately.

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