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Due to the complexity of the replacement job, it is not recommended as a DIY project. By filling and properly bleeding the system the heat should come back. There are 2 separate evaporators but only one compressor. Although, the evaporator coil is a component of the cooling function of the air-conditioning system, but the air always first passes through the evaporator and then flows over the heater core. Your vehicles air conditioning system has an expansion vale or an orifice tube, depending on the model. Ask your Dodge dealer. One is labelled H for high-pressure and the other one is labelled L for low-pressure. The pressure values based on ambient temperatures differ depending on the type of the refrigerant. Grand Caravan SXT 3.6L V6. Home Troubleshooting Dodge Grand Caravan AC not working causes and how to fix it. dash and headlights RESET PROCEDURE With the ignition off, press the TRIP and RESET buttons at the same time you turn on the ignition. Rear A/C Block Off with Screws Gaskets Aluminium Alloy Rear Air Conditioner Block Replacement Fit for Town/Country Caravan/Grand Caravan 2012 C 2016. The vehicle has an air conditioning system (AC) to cool passengers during warm weather and hot drives. Where are the 3 buttons to hold for reset? 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. 3. 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. HOLD the buttons for 10 sec and the instrument cluster will go into a diagnostic sequence. Possible leaks or failed components in the rear. Specifically replace the condenser, evacuated, and recharge the AC system with R134 refrigerant on a 2002 Dodge Caravan minivan. The most common symptom of faulty blend door actuator on Dodge Grand Caravan is a slight clicking sound repeatedly coming from under the dashboard. The compressor is the heart of the entire air conditioning system on Dodge Grand Caravan. Therefore, the filter performance will not increase significantly even after cleaning. 8 people found this helpful. Shake the canister briefly and release the refrigerant into the system until the recommended pressure has been achieved. The two most prominent symptoms of a clogged up evaporator on your Grand Caravan are: Cleaning the evaporator on Grand Caravan is not a simple task. 2016 Dodge Grand Caravan This problem may be covered under warranty. Excessive oil can also reduce the performance of the compressor and can cause it to fail prematurely. My rear a/c is not working in my 2008 town and country, blowers work fine but only blow warm air. The leak can be diagnosed by injecting small amount of fluorescent dye into the AC system. In this way, it can be determined whether the loss of refrigerant is due to a defective condenser. The Fora platform includes forum software by XenForo. Place the key into the ignition and switch it to the "On" position. If the temperature doesn't change at all, the door may be stuck or broken. 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. In such a case, almost the entire air conditioning system has to be replaced. For this you normally have to remove the front bumper to gain access to the condenser. After the Dealer replaced 2 major Components in the AC System, the Air still comes on in Neutral and Park even when the Air is not switched on and only the Outside Vent is on. You can use pressure washer for cleaning, but make sure its at low pressure setting, as high pressure can damage the delicate fins on the condenser. Had a similar issue, no cold air and diagnosed the problem to the rear expansion valve being clogged with some small debris and fine metal shavings. First You will need to start the van and make sure the mode in the vehicle is set to panel. Air should blow out of the vents at different intervals during the reset. Sometimes changing the temperature can temporarily stop the sound. Over time, these particles build up on the fins and block the air flow through the evaporator, causing reduced air flow in the cabin and poor heating or cooling. tried different settings, defrost, floor and turn the heat on. This hinders the condensers ability to release heat as less air passes through the mesh, which results in poor cooling in the cabin. Resetting the system is something You can do from home but it takes a few steps. Ideally, the refrigerant should never leak in a properly sealed AC system, but most car AC systems do leak small amount of refrigerant over time due to minor imperfections and will need recharging after every few years. This hinders the condensers ability to release heat as less air passes through the mesh, which results in poor cooling in the interior. If there is no air flow from the air vents in the dashboard when you turn on the heater in your Dodge Grand Caravan, it means the problem is related to the fan or blower motor function. Free Dodge Grand Caravan repair estimates, See More 2016 Dodge Grand Caravan Questions, When im turning or accelerating my van makes a clicking noise, Blows cool air on 1 vent and heat from the other at the same time, The heater was blowing heat and all of the sudden it was blowing cold air and the etc light came on, Air Conditioning Expansion Valve Replacement. Automatic transmission. Dirty evaporator can cause weak airflow and reduce the heating performance in Grand Caravan. But if the weather is too cold, the engine may never reach its optimal operating temperature with a stuck open thermostat. Turn the Mode Control dial to "Panel." You need a pro that specializes in AC systems to troubleshoot what the issues are. Symptoms of a Bad or Failing Blower Motor Relay If the blower motor does not function, car fuses are blown, or relays are melting, you may have to replace the car blower motor relay. In this video we show you How To Repair a Dodge Caravan Air Conditioning System. 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. It is a well known problem and any Caravan I have every seen has had this problem. Sometimes when a thermostat goes bad, it stays stuck open. Copyright 2023 Leaf Group Ltd. / Leaf Group Media, Auto User Manual: Dodge Caravan Owner's Manual. Note: Dirty cabin air filter mostly only leads to reduced cooling. The most common causes for AC not cooling properly in Dodge Grand Caravan are low or overcharged refrigerant, compressor malfunction, clogged cabin air filter, dirty condenser or evaporator coils, dirty or sluggish blower motor, and bad fuse or relay. The dryer is often overlooked. 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. Locate two rubber hoses that connect to the heater core through the firewall area. The blend door actuator may require recalibration after replacement. QuiteAlright is not responsible or liable for any loss damage (including, but not limited to, actual, consequential, or punitive), liability, claim, or any other injury or cause related to or resulting from any information posted in this video. This van has controls for the rear at Ask an Expert Car Questions Dodge Repair This answer was rated: Amedee, Dodge Technician 37,957 Satisfied Customers ASE certified tech advanced level specialist. CarGurus has 52 nationwide Caravan listings starting at $3,499 . 2023 Vehicle History Inc. All Rights Reserved. 166. 7.5 pretty bad Typical Repair Cost: $1,500 Average Mileage: 43,900 miles Total Complaints: 4. Over last two years the front dash vents gradually lost all read more Chris Shop Foreman 8,839 satisfied customers 2001 dodge grand caravan sport: expansion valves..ac compressor..kick Dirty cabin air filter is the leading cause of weak heater airflow in Dodge Grand Caravan. It is not only responsible for pumping the refrigerant throughout the AC system but also converting the refrigerant from gaseous state to liquid state as it passes through the condenser. After cleaning, reconnect the terminals. Your vehicle may also consume more fuel than normal. Unless the wiring issue is fixed, the fuse will blow again. The hot coolant is pumped through the heater core located behind the dashboard. Unfortunately, this procedure does not allow you to get into the deeper layers of the filter. Remove the blower motor, typically located under the passenger side dashboard, and inspect the condition of the cage. Remove the blower fan in a Dodge Caravan by first disconnecting the battery, then waiting two minutes to disable the airbags. It's an obvious rear mode door or switchology problem as stated. Insufficient lubricant: The compressor in Grand Caravan needs lubrication to function properly and minimize mechanical wear by reducing friction. Warning: Wear gloves and safety glasses before recharging the AC to avoid accidental exposure to harmful chemicals in the refrigerant. "AC unit" - what does that mean? Your air conditioning system no longer cools properly? 2000 Grand Caravan - drivers side heat not working - Passenger and rear are fine 2 Answers. 2014 Dodge Grand Caravan SXT (about 65k miles) . The vehicle replaced a 2013 Chevrolet Equinox. Rear controls stuck and blowing high heat no matter what happens in other zones. For us shade tree mechanics and cheap people the best fix is to just block the rear ac off. Check your vehicles owners manual or look under the hood to find the type of the refrigerant your vehicle uses. Check which type of refrigerant your vehicle uses. 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. Since some OBD codes are manufacturer-specific, the scanner will be able to give you more accurate information if you enter more details about your Grand Caravan. To complete the reset, press the top button. 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. 1. Rear ac in Dodge Grand Caravan not blowing. Over time, the heater core can begin to rust or mineral deposits can form in these channels, blocking the flow of the coolant. Just like with low refrigerant, the AC in Grand Caravan will blow warm air only if the AC system is overcharged with refrigerant. Unfortunately, this procedure does not allow you to get into the deeper layers of the filter. 24,855 miles. The refrigerant pressure is affected by the outside atmospheric temperature. Keep in mind that reduced airflow doesnt always indicate a problem with the blower motor, as it can also happen due to a clogged cabin air filter, dirty evaporator, or a bad mode door actuator. Insufficient amount of refrigerant is still the main cause of a non-functioning AC system. Remove the glove compartment, unscrew the blower fan and then unplug the electricity to it. 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. If one is hot and the other is cold, you have a plugged heater core. There are many reasons why your Dodge Grand Caravan AC is not cooling properly. 90,000 miles. 56,823 Satisfied Customers 20+ yrs. Over time, these dust particles can builds up on the fins and block the air flow through the evaporator, resulting in poor cooling. The block off kit can be found here: www.streetrodguys.com In rare cases, a fault in the climate control unit can cause the AC to stop cooling. Dont worry, there is no risk of suffocation, as the air recirculation mode still allows up to approximately 10 percent of the air coming from the air vents to be fresh air from the outside.

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