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Why is my AC not working in my Dodge Journey?

Most Dodge Journeys stop cooling primarily because the refrigerant has leaked out or the A/C compressor clutch isn’t engaging. Electrical faults, a clogged cabin filter, or airflow problems from a bad blower can also keep the system from cooling. A few quick checks can help you determine whether it’s a simple fix or a job for a shop.

Understanding what the A/C system does in a Dodge Journey

The Dodge Journey’s air conditioning relies on a closed loop of refrigerant, a belt-driven compressor, a condenser, an evaporator, and a set of sensors and blend doors that regulate temperature and airflow. When any part fails—such as a refrigerant leak, a failed compressor clutch, clogged components, or an electrical fault—the system may fail to produce cold air or stop cooling altogether. Knowing these parts helps in diagnosing whether the issue is mechanical, electrical, or related to airflow.

Common causes of no-cooling in a Dodge Journey

The following list covers the most frequent reasons a Journey won’t blow cold air. Some causes are easy DIY checks, while others require professional service.

Refrigerant leak or low refrigerant charge: Low pressure can prevent the compressor from cycling and cooling properly. Look for oily residue at service ports or hissing sounds from the lines.

Faulty A/C compressor clutch or compressor itself: If the clutch won’t engage when you turn on A/C, the compressor may be faulty or electrically controlled.

Blown fuses or failed relays: A blown A/C fuse or faulty relay can disable the compressor or blower circuit. Check the vehicle’s fuse box and replace as needed.

Bad blower motor or blower resistor: If you have little or no air from the vents, the blower motor or its resistor could be failing.

Electrical or control-module issues: The climate control unit, wiring harnesses, or blend door actuators can malfunction, preventing proper cooling or airflow.

High- or low-pressure sensor problems: Sensors that protect the system can prevent the compressor from running if they detect abnormal pressure.

Condenser fan or airflow problems: A non-working condenser fan or blocked condenser fins reduce heat rejection and cooling efficiency.

Blocked or restricted expansion device (orifice tube): A clogged expansion device limits refrigerant flow and cooling capacity.

Clogged cabin air filter or restricted ducts: Dirty filters reduce airflow and can make the system feel like it isn’t cooling.

If any of these issues are suspected, a proper diagnosis will often require professional tools to confirm refrigerant pressures and electrical integrity, especially for leaks and pressure switches.

DIY checks you can perform safely

Before you head to a shop, you can run a few basic checks. Do not attempt to recharge refrigerant yourself unless you are trained and legally certified to handle refrigerant; improper charging can be dangerous and illegal in many areas.

Verify A/C settings and airflow: Ensure the system is set to cold, with the A/C option on and the fan at a reasonable speed. Check different modes (face vents, feet, defrost) to gauge airflow reliability.

Check fuses and relays: Locate the A/C fuse and associated relays in the under-dash or engine compartment fuse panels. If a fuse is blown or a relay feels stuck, replace it with the same rating.

Inspect the cabin air filter: A clogged filter can drastically reduce airflow. Locate the filter (usually behind the glove box) and replace if dirty or discolored.

Test the blower operation: Set the fan to high and listen for the blower motor. If there’s no or weak airflow, the blower resistor or motor may be at fault.

Check for compressor engagement: With the engine running and A/C on, listen for a click from the compressor clutch and observe the belt pulley. If the clutch does not engage, the compressor or its electrical circuit may be faulty.

Inspect for obvious leaks and debris: Look at exposed lines for oily residue near connections and ensure the condenser is clear of leaves, dirt, and debris that could obstruct airflow.

Inspect the serpentine belt condition: A worn or broken belt can prevent the compressor from turning. Replace if frayed, cracked, or showed signs of glazing.

These steps help narrow down whether the issue is electrical, airflow-related, or a potential refrigerant problem. If you don’t see a simple fix, or you’re uncomfortable with any step, proceed to professional service.

When to seek professional help

Many A/C problems in a Dodge Journey involve refrigerant handling, sealed-system diagnosis, or components that require specialized tools. If you notice no cooling, a hissing sound, oily residue around lines, or you suspect a refrigerant leak, contact a licensed technician. Here’s what a shop will typically do:

Perform a pressure test with calibrated gauges to verify the refrigerant charge and detect leaks.

Use leak detection methods (UV dye, electronic sniffer) to locate the source of a leak.

Inspect the compressor clutch and electrical circuits, including fuses, relays, and control modules.

Check the condenser fan operation and airflow through the condenser and evaporator.

Evaluate cabin air components, such as the blower motor and blend doors, and replace failing parts as needed.

Recharge refrigerant only after leaks have been repaired and all components are confirmed sound.

Note that refrigerant work is regulated in many jurisdictions and should be performed by a certified technician to prevent environmental harm and ensure proper system performance.

What to expect at the repair shop

A technician will typically start with a diagnostic scan and a pressure test, then visually inspect the A/C belt, hoses, and connections. If a leak is found, repairs may involve replacing seals, hoses, the condenser, or the compressor. After repairs, the system will be evacuated and recharged to the correct specification, and a final performance test will confirm cooling efficiency and proper cycling.

Summary

Most Dodge Journey A/C failures stem from refrigerant leaks, compressor/clutch issues, electrical faults, or airflow restrictions. Start with basic checks of fuses, blower operation, cabin filter, and visible leaks, while respecting safety and environmental rules around refrigerant. If DIY steps don’t restore cooling or you detect leaks, seek a qualified technician to diagnose pressures, repair leaks, and restore proper performance.

What is the most common problem with Dodge Journeys?

The most common problems with the Dodge Journey include electrical system failures (especially with the keyless entry and remote start), engine overheating due to coolant issues, and premature brake wear. Other frequent complaints involve water leaks, particularly in the interior, and transmission problems like slipping or hard shifting, particularly in certain model years.

This video discusses common Dodge Journey problems, including electrical, engine, and transmission issues: 52sOBD InsightsYouTube · Aug 2, 2024
Electrical problems

Remote keyless entry: Intermittent or complete failure of the keyless entry system is a frequently reported nuisance.
General electrical issues: Owners report problems with the Totally Integrated Power Module (TIPM), dead batteries, and malfunctioning power accessories.
Airbag malfunctions: This can include spontaneous deployment or failures, often indicated by a flashing airbag light.

Engine and cooling system issues

Overheating: Particularly in models from 2009-2016, the engine can overheat due to a clogged coolant port in the thermostat housing.
Oil consumption: The 2.4-liter engine can consume a significant amount of oil.
Other engine complaints: Some models have experienced stalling, and the 3.6L engine can have issues with the oil cooler or radiator neck.

Brake problems

Premature wear: Owners report that brake pads and rotors wear out faster than expected.
Other issues: Problems include noisy brakes, sticking brake pedals, and ABS or ESC warning lights.

Why is my AC not working in my 2019 Dodge Journey?

The most common reasons a 2019 Dodge Journey AC isn't working are a refrigerant leak, an electrical climate control issue, or a problem with the air conditioning compressor.

Why is the AC in my car not working all of a sudden?

The most likely reason the air-conditioning isn't working is the car's air-conditioning is leaking. Your car's AC system uses freon to cool the ambient air temperature which creates some refreshing cold air. Whenever there is a freon leak on your car there is no way to cool the air.

How to reset Dodge AC?

Press and hold the topmost and the bottom buttons. While the top AC button regulates the rear wiper, the bottom one regulates the washer fluid of the rear wiper. Now check the AC light; it should illuminate and flash. Your job is almost done if you see the flash.

Kevin Bennett

Company Owner

Kevin Bennet is the founder and owner of Kevin's Autos, a leading automotive service provider in Australia. With a deep commitment to customer satisfaction and years of industry expertise, Kevin uses his blog to answer the most common questions posed by his customers. From maintenance tips to troubleshooting advice, Kevin's articles are designed to empower drivers with the knowledge they need to keep their vehicles running smoothly and safely.