Shake the canister briefly and release the refrigerant into the system until the recommended pressure has been achieved. Place the key into the ignition and switch it to the "On" position. Rear AC not working Rear AC not working 2016 Dodge Grand Caravan Asked by Visitor in Englewood, CO on September 05, 2021 I had the AC unit replaced when I brought the van however, there is no AC blowing in the rear and my van doesn't have the rear controls, needing to see what is the issue as to why my AC isn't blowing in rear. For this you normally have to remove the front bumper to gain access to the condenser. Place the key into the ignition and switch it to the "On" position. Note: Dirty cabin air filter mostly only leads to reduced cooling. Start by inspecting the condition of the cabin air filter on your Grand Caravan. RB The Mechanic assumes no liability for property damages or injury incurred as a result of any of the information contained in this video. IMPORTANT COVID 19 SHIPPING NOTICE. Eric is online now Continue Related Dodge Questions My Dodge grand Caravan rear AC is blowing hot air while my Resetting the system is something You can do from home but it takes a few steps. Mine is 2011 and has turn knobs for fan & temp. The rear HVAC housing has electric stepper motors driving the temperature blend door (cool/warm) and the air mode door (side/headliner vents). The most common reasons a Dodge Caravan ac isn't working are a refrigerant leak, an electrical climate control issue, or a problem with the air conditioning compressor. Most modern vehicles use R-134a refrigerant, but newer vehicles are increasingly using R-1234yf as a more environmentally friendly replacement. Home Troubleshooting Dodge Grand Caravan AC not cooling causes and diagnosis. An overcharged system not only affects cooling performance but can also damage the compressor and sometimes can cause a major leak. All do-it-yourself projects entail some risk. Its purpose is to seal the combustion gases within the cylinders and to avoid coolant or engine oil leaking into the cylinders. Heat and air works great but if you say, switch to floor then it willbe floor and face. Dodge Grand Caravan. It will be anywhere from $1000 tp $1500 to have a garage do the work. 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. Dirty evaporator can also be the reason for AC problems on your Dodge Grand Caravan. 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. Keep in mind that the front AC will not cool the van as good as having a twin system. The minivan was first manufactured in 1983 and remains in production as of 2011. Before you consider replacing the heater core in your Grand Caravan, it is recommended to flush the existing heater core. HVAC with 3 zone controls. There is no prescribed time for changing cabin air filter, but most manufacturers recommend a change after 10,000-20,000 miles. 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 such a case, almost the entire air conditioning system has to be replaced. Pulled the glovebox down and looked at the blower motor area for a baffle, didn't see one but got up under the glove box and banged on the bottom of the blower motor housing and the fan kicked on and has continued working. 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. 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. If one fails the test, you get the blinking rear defroster.Problem is a bit deeper because if you replace the failed blend door actuators with replacement parts (such as Dorman), the new actuator will work, but still fail the self adjustment test. If you only install a new compressor here, another failure is inevitable, as the chips immediately destroy the new component. YOU HAVE TO GO WITH DODGE OEM BLEND DOOR ACTUATOR (MOPAR).Part #: M8679001Watch my video for the full explanation.Rear temperature blend door actuator replacement:https://youtu.be/F3QhRBu5AvgPassenger side blend door actuator replacement:https://youtu.be/CYTsrmHK9uUGive me your support and join the channel:https://www.youtube.com/channel/UCvyScrAKiK8NL66K4yrQTnA/joinThanks for watching.Don't forget to Like the video / SUBSCRIBE to the channel! DISCLAIMER:While QuiteAlright strives to make the information provided in this video as accurate as possible, it makes no claims, promises, or guarantees about the accuracy, completeness or applicability of the content. If the blend door actuator fails to fully open the blend door towards the heater core, it will result in poor heating performance. 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. Your vehicles air conditioning system has an expansion vale or an orifice tube, depending on the model. As a rule, there is no avoiding a change if the filter is dirty. It does this by allowing water to enter the engine when it is getting hot, and by keeping coolant from entering while the vehicle warms up. This is . The cabin air filter captures most of the dirt or other airborne particles, but some particles escape and can get lodged on to the evaporator. No luck. 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. 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. 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. ChryslerMinivan.net is the best forum for Chrysler Town and Country owners to discuss mileage, price, problems, towing and more. JavaScript is disabled. Leak was due. Unfortunately, this procedure does not allow you to get into the deeper layers of the filter. Vehicle: 2000 Dodge Grand Caravan LE; Engine 3.8L, automaticDual heaters (front and rear)Front heater has Driver Passenger controlsAbout 3 days ago the heat stopped coming out of the drivers. Climate control module is the brain of the air-conditioning system in your Dodge Grand Caravan, responsible for controlling all the components in the system. Had a similar issue with a blend door on a 2009 Honda Civic and those blend doors are VERY easy to get to, so I checked them both and the passenger side was sticky, sprayed some lube on the actuator arm and dusted the gunk off and it's been working since. It is important that you enter this 100% correctly, otherwise the result of the search may be inaccurate. There is only one small cable running to the blower fan which transmits the electricity. What to do? Insufficient amount of refrigerant in the AC system is one of the leading causes of AC not blowing cold air in Grand Caravan. Grand Caravan Blacktop Package 3.6L. 90,000 miles. Locate two rubber hoses that connect to the heater core through the firewall area. 18,300 miles. But if the weather is too cold, the engine may never reach its optimal operating temperature with a stuck open thermostat. 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. 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. SOURCE: Front Blower ok, missed the part about the rear ac working, the part that causes this is called the air temperature control blend door actuator motor, it is an electric motor driven gear drive that moves the plastic door inside the air ducking to mix or shut off the hot or cold air from the ac evaporator core or the heater core, you will need to replace it. This hinders the condensers ability to release heat as less air passes through the mesh, which results in poor cooling in the interior. By filling and properly bleeding the system the heat should come back. A defective sealing ring, a worn line or a condenser that has been damaged by a stone chip are the most common causes. front air stop blowing. Low coolant or air in the cooling system Low coolant level or air in the cooling system can cause the heater to stop working properly in Grand Caravan. The cabin air filter captures most of the dirt or other airborne particles, but some particles escape and can get lodged on to the evaporator. The design of the heater core is similar to the radiator, it has narrow internal channels through which hot coolant flows. The rear works fine, AC cycles on fine, but no matter what I can't get any air to come out of the front. 2014 Dodge Grand Caravan SXT, 3.6, 1000 miles, the warm air works in the back all winter, the front has cold air, dont really understand why only half the air con works, is it too seperate systems, do I have to recharge somewhere in the back too. The Dodge Caravan AC is known for one thing.. So, even if you recharged your Grand Caravan AC at the recommended pressure, the system could still over pressurize when the ambient temperatures get warmer. What was replaced? If the temperature changes a little, the module may need calibration with the scan tool (StarScan, StarMobile, etc). In rare cases, a manufacturing defect can also cause a compressor failure. The vehicle has an air conditioning system (AC) to cool passengers during warm weather and hot drives. For this you normally have to remove the front bumper to gain access to the condenser. The refrigerant pressure is affected by the outside atmospheric temperature. The function of both expansion valve and orifice tube is the same, to restrict the flow and reduce pressure of the refrigerant before it enters the evaporator coil. 37 % of the time it's the. The pollen filter, also known as the cabin filter or microfilter, is a central component of the ventilation system in your Dodge Grand Caravan. A blown head gasket can cause the exhaust gases from the engine to enter the cooling system and plug the heater core. A dirty filter causes the overall ventilation of the interior to deteriorate resulting in reduced cooling and air flow. Automatic transmission. Check your vehicles owners manual or look under the hood to find the type of the refrigerant your vehicle uses. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. 1. Inspect the cabin air filter (if equipped) to verify that it is not clogged. Remove the blower motor, typically located under the passenger side dashboard, and inspect the condition of the cage. If you drive your vehicle in dusty or polluted environment, the filter can get dirty much sooner than manufacturers recommendation. If there is a problem with the temperature of the air conditioning system, it could be due to a bad blend door actuator. A professional mechanic can swiftly diagnose the heating issue for you. Over time, grime, bugs and other small particles can build up on its surface and in the gaps of its mesh. A family member purchased a new 2017 Grand Caravan SXT with the rear heat / ac. The most common causes that hinders normal operation of air conditioning system on your Dodge Grand Caravan are dirty cabin air filter, refrigerant leak, dirty or clogged condenser, dirty or clogged evaporator, bad blower motor, defective compressor, faulty blend door actuator or any fault in the electrical system. 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. 3. Cleaning the evaporator in Grand Caravan is not a simple task. The leak can be diagnosed by injecting small amount of fluorescent dye into the AC system. Mark helpful. There are many reasons why air conditioning may not be working properly on your Dodge Grand Caravan. Over time, these dust particles can builds up on the fins and block the air flow through the evaporator, resulting in poor cooling. 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. 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. 2019 Dodge Grand Caravan 35 Anniversary Model. Turn the Mode Control dial to "Panel." The two systems are joined, so if for example you lose freon, you will lose AC in the front and rear. You need a pro that specializes in AC systems to troubleshoot what the issues are. Jul 18, 2012. A dirty filter causes the overall ventilation of the interior to deteriorate resulting in reduced heating and airflow. 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. Check the owners manual of your vehicle or the fuse box cover to find the exact location of the AC fuses. 2000 Grand Caravan - drivers side heat not working - Passenger and rear are fine 2 Answers. Next You will need to press the highest and lowest buttons on the AC control panel until the AC light begins to flash. There is only one compressor so the freon must travel to the rear evaporator. The sound will be most prominent for a few seconds when you turn on the air conditioning or adjust the temperature. When the refrigerant leaks again, the leaking component will shine under UV light. Climate control module is the brain of the air-conditioning system in your Dodge Grand Caravan, responsible for controlling all the components in the system.