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. Release the buttons once you see the light flash. That means every time you start the van, climate controls go through self adjustment and check every blend door actuator and blend door. 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 most common causes for blower motor not working in Dodge Grand Caravan are blown fuse, bad relay, resistor or control module malfunction, and faulty blower motor. But if the weather is too cold, the engine may never reach its optimal operating temperature with a stuck open thermostat. Feel both the rubber lines going in and out of the heater core after the engine has warmed up. The wiring harness itself can go bad. 2010 T&C Touring, 3.8L, 6 Speed 62TE Trans. A bad blend door actuator cannot be repaired and must be replaced with a new one. A dirty filter causes the overall ventilation of the interior to deteriorate resulting in reduced cooling, heating and air flow. A dirty filter causes the overall ventilation of the interior to deteriorate resulting in reduced heating and airflow. Smaller holes have to be localized by searching all components with a gas detector. 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. Clogged heater core is one of the leading causes of heating not working in Dodge Grand Caravan. Both should be hot. There is no prescribed time for changing cabin air filter, but most manufacturers recommend a change after 10,000-20,000 miles. Here's a good order to go about checking your van's air conditioning system: First, check the condenser to make sure it's not blocked by any debris. Insufficient lubricant: The compressor in Grand Caravan needs lubrication to function properly and minimize mechanical wear by reducing friction. front air stop blowing. Just have it refilled and you can drive with pleasant temperatures again. The most common symptom of faulty blend door actuator on Dodge Grand Caravan is a slight clicking sound repeatedly coming from under the dashboard. It is generally recommended to replace the cabin air filter every year at the start of the winter season. ( 2008 | 2009 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | SE | CVP | AMP | SXT | LIMITED | CREW | VALUE PACKAGE | EXPRESS ).This is just the explanation video. Press the top button to complete the reset. When the heater is turned on and the AC turned off, the compressor does not turn on and the evaporator is not cooled. FAILING. You cannot repair a broken blower motor, the part must be replaced with a new one. This can have different causes. No luck. If you drive your vehicle in dusty or polluted environment, the filter can get dirty much sooner than manufacturers recommendation. . As soon as the light starts to flash release the two buttons and the system will reset. The heating system in Grand Caravan uses hot coolant or antifreeze from the engine block to heat the interior of the vehicle. Remove the blower fan in a Dodge Caravan by first disconnecting the battery, then waiting two minutes to disable the airbags. 5th Generation Chrysler Minivans: 2008-2020, 4th Generation Chrysler Minivans: 2001-2007, 3rd Generation Chrysler Minivans: 1996-2000, 2nd Generation Chrysler Minivans: 1991-1995. Due to the complexity of the replacement job, it is not recommended as a DIY project. Low coolant level or air in the cooling system can cause the heater to stop working properly in Grand Caravan. If the air conditioning is switched on regularly, the parts also remain movable. Step 1 Start the Dodge Caravan. In this way, it can be determined whether the loss of refrigerant is due to a defective condenser. Locate two rubber hoses that connect to the heater core through the firewall area. It is a filter! Dirty evaporator can also significantly reduce AC cooling performance in Grand Caravan. The vehicle was not repaired. 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. Water pumps usually last for more than 100,000 miles, but they can fail at any time. In rare cases, a fault in the climate control unit can cause the heater to stop functioning. The videos are intended for information only. 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. The air flow from the vents is choppy and not smooth. 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. 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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. Dodge Caravan - Looking for a Used Caravan in your area? . If the liquid changes color, then there is a leak in head gasket. 3 offers from $32.73. Therefore, the filter performance will not increase significantly even after cleaning. Since the heating system in Grand Caravan relies on the hot coolant from the engine to heat the interior, the heater will blow cold air until the engine reaches its normal operating temperature. If one is hot and the other is cold, you have a plugged heater core. You just have to locate the coolant overflow reservoir and inspect the level of coolant in it. If you are only topping off the refrigerant in your Dodge Grand Caravan with off-the-shelf refrigerant recharge cans and not repairing the leak, you may have flooded with AC system with oil since these cans often contains added oil. Did you ever fix it my van has the same problem but all my blend doors ect.. Since the two heat exchangers (condenser and evaporator) are designed in cross-flow design, the detergent finds the path with the least resistance and leaves the chips behind. Over time dust can accumulate on the fins and reduce the air flow, which reduces cooling performance. This would require a scan tool to confirm correct operation. The AC light should illuminate and then flash. Grand Caravan Blacktop Package 3.6L. Christopher S July 30, 2020. The design of the heater core is similar to the radiator, it has narrow internal channels through which hot coolant flows. Ask your Dodge dealer. experience as repair shop manager and technician. The Dodge Caravan AC is known for one thing.. You dont have to go to a workshop to check for a leaking head gasket in your Grand Caravan. Locate the three leftmost buttons in the AC controls. The best fix is to replace the rear evaporator and hope it goes more than 2 years before the problem happens again. There are several causes for AC not blowing cold air in Grand Caravan, which we will go through in this article. Just make sure the temp control on the upper console facing the rear seats is not turn to warm. 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. . 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. Grand Caravan SXT 3.6L V6. Connect the pressure gauge to the low pressure (L) port in Grand Caravan. The compressor is the heart of the air conditioning system in Dodge Grand Caravan. FAILING. Remove the blower motor, typically located under the passenger side dashboard, and inspect the condition of the cage. Find a better mechanic. The dryer is often overlooked. Where are the 3 buttons to hold for reset? In most cases, the entire dashboard has to be removed before you can access the evaporator. A dirty filter causes the overall ventilation of the interior to deteriorate resulting in reduced cooling, heating and air flow. A common symptom of a faulty blend door actuator in vehicles with dual zone climate control system is one side blowing hot air while the other side is blowing cold air. 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. Next You will need to press the highest and lowest buttons on the AC control panel until the AC light begins to flash. AC dont work on Dodge Caravan Check FUSE & Relay RB The Mechanic 59.2K subscribers Subscribe 44K views 2 years ago Due to factors beyond the control of RB The Mechanic, it cannot guarantee. The front air con works greatany ideas would could be the problem and how to fix it! Cabin air filter captures most of the dirt or other airborne particles, but some escape and fall on to the evaporator. Excessive oil can also reduce the performance of the compressor and can cause it to fail prematurely. 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. Over time, grime, bugs and other small particles can build up on its surface and in the gaps of its mesh. Tried all combinations of power on, rotating the know etc. fan is running and no air is moving. Rear blower will not turn on. What to do? Caravan fan and ac not working 1 Answer. Over time, the heater core can begin to rust or mineral deposits can form in these channels, blocking the flow of the coolant. It will be anywhere from $1000 tp $1500 to have a garage do the work. experience as repair shop manager and technician. Both of these are at risk of clogging due to contamination, for example due to metal shavings from a failing compressor. Don't worry, you can still start your vehicle - the battery is only used to send the signal for locking/unlocking. The blend door actuator may require recalibration after replacement. Initially thought to replace the entire system, but figured it would be cheaper to replace the valve, clean the rear evaporator and replace the dryer. 166. Larger leaks may already be heard or you can find them with a leak detection spray. It is important that you enter this 100% correctly, otherwise the result of the search may be inaccurate. 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. To complete the reset, press the top button. Mark helpful. Blend door actuator plays a role in controlling the air flow and temperature inside your Grand Caravan. However, if you dont turn on the air conditioning on your Grand Caravan for a long time, the parts will stick. Unfortunately, this procedure does not allow you to get into the deeper layers of the filter. In any case, it is advisable for laypersons to visit a workshop. 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. Eric is online now Continue Related Dodge Questions My Dodge grand Caravan rear AC is blowing hot air while my Check the system pressure. Unfortunately, this procedure does not allow you to get into the deeper layers of the filter. VehicleHistory.com This vehicle was purchased in July 2014 and as of July 2015, the REAR Air Conditioning unit has stopped working. 10 offers from $23.29. 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. In addition to the vehicle make, model, and engine type, you usually also have to type in the Vehicle Identification Number (VIN). 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. Since the heater core is usually slightly higher, the air will accumulate in there first. In case of severe contamination, multiple components may have to be replaced, including the condenser, the evaporator and the compressor. Over time, these dust particles can builds up on the fins and block the air flow through the evaporator, resulting in poor cooling. 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. I have a 2005 . Bad Thermostat The job of your Caravan's thermostat is to regulate the temperature of the engine. 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. Weve got you covered!GM DIESEL CONVERSIONhttps://adventurevehiclesnw.com/shop/product-category/gm-diesel-conversion/ LAND CRUISER DIESEL CONVERSIONhttps://adventurevehiclesnw.com/shop/product-category/land-cruiser-diesel-conversion/UNIVERSAL DIESEL CONVERSIONhttps://adventurevehiclesnw.com/shop/product-category/universal-cummins-diesel-conversion/Find some of our favorite gear on our Amazon shop: https://amzn.to/3J3KihN#AmazonAssociate - We earn a small portion from qualifying purchases. 2014 Dodge Grand Caravan SXT (about 65k miles) . Keep in mind that the front AC will not cool the van as good as having a twin system. Home Troubleshooting Dodge Grand Caravan AC not working causes and how to fix it. The pressure values based on ambient temperatures differ depending on the type of the refrigerant. Switch the Mode Control knob to "Panel." This setting only guides air to your face and upper body, not your legs. 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. Let us know what you find with this and we can go from there. The rear works fine, AC cycles on fine, but no matter what I can't get any air to come out of the front. 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. A maximum of the metal pipes can be rinsed here. Very common problem & they were surprised there . ZIP: #1 Paul Reputation 2,020 #2 tenspeed Reputation 1,510 #3 Dan Ritz Reputation 1,480 Tried the above reset, didn't work. The pollen filter, also known as the cabin air filter or microfilter, is responsible for filtering the air that the passengers breathe in the cabin. There are many reasons for poor heating performance in Grand Caravan, which are explained in this article. Over time, grime, bugs and other small particles can build up on its surface and in the gaps of its mesh. In rare cases, a fault in the climate control unit can cause the AC to stop cooling. Your vehicle may also consume more fuel than normal. Leak discovered. The two systems are joined, so if for example you lose freon, you will lose AC in the front and rear. 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. Resetting the system is something You can do from home but it takes a few steps.