2012 Dodge Grand Caravan A/C Not Working: 4 Complaints Since then, she has launched several startups including a t-shirt business, an online marketing and advertising t-shirt distribution business, and an entertainment site. Keep in mind, an AC compressor can fail without any apparent cause, especially in older vehicles or in vehicles that have racked up too many miles. Most of the time if your AC stops working on a 2002 to 2008 Dodge Caravan it is because it lost all its refrigerent due to a faulty rear evaporator. Once you start the car back up the A/C will still be off. Leak was due. Note: If the blower motor suddenly fails from one second to the next, you must first check whether a blown fuse is responsible for the failure. Rear ac in Dodge Grand Caravan not blowing. In any case, it is advisable for laypersons to visit a workshop. DODGE CARAVAN FLASHING LIGHTS A/C AND RECIRC - Fixya The refrigerant pressure is affected by the outside atmospheric temperature. A clogged or leaking condenser can also be the reason for air-conditioning not working properly on your Grand Caravan. Don't worry, you can still start your vehicle - the battery is only used to send the signal for locking/unlocking. Eric, Automotive Repair Shop. Your air conditioning system no longer cools properly? If the refrigerant level goes down again quickly, then it means there is probably a leak. Happened on the 2008 Dodge I drive for the company. You cannot repair a broken blower motor, the part must be replaced with a new one. The two most prominent symptoms of a clogged up evaporator in Grand Caravan are: the air flow from the AC vents is choppy and not smooth, and the inside of the vehicle is developing a bad moldy smell. Therefore it is recommended to do this at a workshop. If your Grand Caravan has push start/stop button, then its possible that your vehicle may not start due to weak key fob battery. Join now! To complete the reset, press the top button. When you press the AC button in heating mode, the compressor turns on and the evaporator cools and dries the air before it enters the heater core. A knocking noise from behind the dashboard could be an indicator of a bad blend door actuator in your Grand Caravan. Tried the above reset, didn't work. The most common symptom of a faulty blend door actuator in Dodge Grand Caravan is a slight clicking sound (or other unusual noise) repeatedly coming from under the dashboard. could the drain be plug and the evaporator is freezing up? She currently resides in South Florida. If too much dirt is caked in the blower fins, it can throw off the balance of the spinning cage and cause it to wobble. In order to find leaks in the air conditioning system, a leak search is carried out in the workshop using forming gas even the smallest leaks can be detected. Next You will need to press the highest and lowest buttons on the AC control panel until the AC light begins to flash. The sound is something like a light tapping on the door and it typically happens when you turn on/off the air conditioning system or start the engine. If you have front AC that is working fine then the rear should also work if the blower is working. As soon as the light starts to flash release the two buttons and the system will reset. If the blower motor in your Grand Caravan is not spinning fast enough either due to an internal defect or due to a fault in the resistor/control module, the airflow from the AC vents will be weaker and the heating performance will be degraded. A worn out or weakened blower motor can also produce abnormal sounds when in operation. Anytime there is a problem with the temperature of the air conditioning system, it could be a problem with the blend door actuator. Therefore, the filter performance will not increase significantly even after cleaning. Low coolant level or air in the cooling system can cause the heater to stop working properly in Grand Caravan. The most common causes for AC blowing hot air in Dodge Grand Caravan are low or overcharged refrigerant, compressor malfunction, dirty condenser or evaporator coils, faulty blend door actuator, defective evaporator temperature sensor, bad AC pressure sensor, and bad fuse or relay. stop for 20 minutes and it work for 1 hour then quit. Ask your Dodge dealer. Spring and summer seasons are hard on the cabin air filter because of pollen and bugs, and in the fall they can get clogged with leaf debris. Turn the Mode Control dial to "Panel." If there is no air flow or reduced air flow from the vents on your Dodge Grand Caravan, bad blower motor could be the culprit. Find a better mechanic. The rear works fine, AC cycles on fine, but no matter what I can't get any air to come out of the front. Caravan fan and ac not working 1 Answer. The Town & Country and Grand Caravan mini vans are susceptible to rear A/C issues, especially in the rust belt. However, when you turn the A/C back on by pressing the A/C button rather than the Auto button, it will allow you to also engage the Recirc button. 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Show more. Over time, the heater core can begin to rust or mineral deposits can form in these channels, blocking the flow of the coolant. However, if you dont turn on the air conditioning on your Grand Caravan for a long time, the parts will stick. nothing. Weak key fob battery. Dodge Grand Caravan AC not working - causes and how to fix it As a rule, there is no avoiding a change. With the tool connected, turn on the ignition. The block off kit can be found here: www.streetrodguys.com A broken compressor is usually irreparable. Remove the blower motor, typically located under the passenger side dashboard, and inspect the condition of the cage. The compressor is the heart of the entire air conditioning system on Dodge Grand Caravan. Once we know what the actual charge is in the system then we can start narrowing it down to just the rear system and a possible door motor issue but if the charge is weak then we will not fix it unless we check this first. Over time, these dust particles can builds up on the fins and block the air flow through the evaporator, resulting in poor cooling. I have a 2005 . Diana Braun began her writing career as a consultant and technical writer for a software company focusing on how-to, training, white paper, and internal process documentation. Sometimes changing the temperature can temporarily stop the sound. Insert the key into the ignition and turn to the "On" position. Very common problem & they were surprised there . To improve heating efficiency, it is recommended to switch on air recirculation mode. Did you ever come across a Problem like this? When you start your Grand Caravan when the engine is cold, the thermostat cuts off flow of coolant through the radiator in order to quickly reach the optimal engine operating temperature. Click on the links below to see my videos on how to replace rear or passenger blend door actuators.This vans are equipped with \"self adjusting\" blend door actuator system. Note: Dirty cabin air filter mostly only leads to reduced cooling. What 3 far left buttons? This gives you a fresh start for the winter, improves defroster performance, and reduces chances of mold or mildew growth. Jul 13, 2012. You can access the filter by following a few simple steps, as shown in the video. This A/C Block Kit, ATMFSFD, is used to block off the rear A/C on the Ford E-Series van with #6 an.. $61.00. There are test kits available in the market in which you just have to insert a tube filled with colored liquid in the radiator (in place of the radiator cap), and then start the engine. The worst damage, however, is a failure of the AC compressor when it eats itself due to insufficient lubrication or a production error, metal chips form, which are distributed throughout the Grand Caravans AC system. Mine is 2011 and has turn knobs for fan & temp. Checking coolant level in Grand Caravan is a fairly some job. If there isnt enough oil added with the refrigerant or to the compressor itself if it was replaced, the internal components of the compressor will wear out and cease to function. The result is a defective compressor that can no longer be repaired. Check the owners manual of your vehicle or the fuse box cover to find the exact location of the AC fuses. Blend door actuator plays a role in controlling the temperature inside your Grand Caravan. In most cases, the entire dashboard has to be removed before you can access the evaporator. If only hot air comes out of the air vents in your Grand Caravan, then the problem probably lies somewhere else. Driving your Dodge Grand Caravan in warmer temperatures with a malfunctioning air conditioning system can quickly become a nuisance when sweltering heat builds up in the cabin. Its purpose is to seal the combustion gases within the cylinders and to avoid coolant or engine oil leaking into the cylinders. If one is hot and the other is cold, you have a plugged heater core. 90,000 miles. 2016 Dodge Grand Caravan A/C Does Not Perform Well There is no prescribed time for changing cabin air filter, but most manufacturers recommend a change after 10,000-20,000 miles. When you turn on the heating, air gets blown through the heater core, warming the air in the cabin.If there is air trapped inside the heater core, the coolant will not be able to flow through it properly. Clearing the air from the heater core will not help until the head gasket has been replaced. The Fora platform includes forum software by XenForo. The buttons of the air conditioning unit may start flashing due to a momentary electrical failure, in which case a reset of the AC is necessary. Although most of the dirt and other particles in the air are filtered by the cabin air filter, but some particles do escape and can cling to the fins of the blower cage. An overcharged system not only affects cooling performance but can also damage the compressor and sometimes can cause a major leak. The air conditioning is a blessing, especially in hot temperatures. Unfortunately, this procedure does not allow you to get into the deeper layers of the filter. 2010 T&C Touring, 3.8L, 6 Speed 62TE Trans. How to Reset an Air Conditioner on a Dodge Caravan Just have it refilled and you can drive with pleasant temperatures again. 92492 20+ yrs. When the heater is turned on and the AC turned off, the compressor does not turn on and the evaporator is not cooled. A knocking noise from behind the dashboard could be an indicator of a bad blend door actuator in your Grand Caravan. So, all of them must be inspected when diagnosing poor airflow. Unfortunately, this procedure does not allow you to get into the deeper layers of the filter. 1. JavaScript is disabled. Rear blower will not turn on. Refrigerant leak in Grand Caravan can be caused by leaking O-ring seals, leaking condenser or evaporator core, or a cracked hose. 10 offers from $23.29. Hope this helps. If this is the case, the only option is to replace the broken part. Dodge Grand Caravan. The sound will be most prominent for a few seconds when you turn on the air conditioning or adjust the temperature. If the cooling system is not full and bled properly, the water pump will not be able to push the coolant around the system efficiently. 0%. Just like with low refrigerant, the AC in Grand Caravan will blow warm air only if the AC system is overcharged with refrigerant. Christopher S July 30, 2020. Instead of changing it directly, it is often recommended to first clean the pollen filter. . How to Troubleshoot the Air Conditioning in Dodge Cars . A professional mechanic can swiftly diagnose the poor AC cooling issue for you. Over time dust can accumulate on the fins and reduce the air flow, which reduces cooling performance. Both of these are at risk of clogging due to contamination, for example due to metal shavings from a failing compressor. Wisconsin certified. The sound will be most prominent for a few seconds when you turn on the air conditioning or adjust the temperature. If the blower motor in your Grand Caravan is not spinning fast enough either due to an internal defect or due to a fault in the resistor/control module, the AC cooling performance will be degraded due to reduced air flow. Remove the blower fan in a Dodge Caravan by first disconnecting the battery, then waiting two minutes to disable the airbags. If you drive your vehicle in dusty or polluted environment, the filter can get dirty much sooner than manufacturers recommendation. In rare cases, a fault in the climate control unit can cause the AC to stop cooling. If the refrigerant level goes down again quickly, it means there is probably a leak. The OBDII connector is usually located under the dashboard. The lights will turn off and when they come back on press the AC button when it is blinking and that will turn it back on. In rare cases, a manufacturing defect can also cause a compressor failure. Dodge Grand Caravan Sport: 2003 Grand Caravan Sport 3.8l 128000km 2003 Grand Caravan Sport 3.8l 128000km with front- and rear-AC system. #1. Grand Caravan Blacktop Package 3.6L. So, all of them must be inspected when diagnosing poor air flow. The head gasket is responsible for providing the seal between the engine block and cylinder heads. Home Troubleshooting Dodge Grand Caravan AC not cooling causes and diagnosis. The Dodge Caravan is a minivan manufactured and sold by the Dodge division of the Chrysler Group. Leak discovered. Check all front HVAC fuses and relays M11 and J15 I believe, all good. Thermostat is a part of the cooling system in Dodge Grand Caravan which ensures that the engine reaches its optimal operating temperature as quickly as possible and maintain it under all operating conditions. In case of contamination, you may have to flush out the contaminants from the AC system of your Grand Caravan, including the condenser and the evaporator, before putting in the new part. Home Troubleshooting Dodge Grand Caravan heater not working causes and diagnosis. Instead of changing the cabin air filter in Grand Caravan, it is often recommended to first clean the filter. This can be done, for example, with a vacuum cleaner or a compressed air system, removing at least a large part of the visible dirt particles. No information contained in this video shall create any expressed or implied warranty or guarantee of any particular result. Dodge Caravan: Radiator Fan Not Working Diagnosis This setting only guides air to your face and upper body, not your legs. By filling and properly bleeding the system the heat should come back. Let us know what you find with this and we can go from there. Where are the 3 buttons to hold for reset? If the fuse is blown, replace it with a new one with the specified amp rating. rear AC, grand caravan | AnandTech Forums: Technology, Hardware Flushing is done by pushing water through the outlet hose of the heater core and draining the gunk from the inlet hose. This mode is useful for clearing fog from the windows. about the air conditioner on a new caravan | Allpar Forums