Press and hold the top one and bottom one. Follow the manufactures repair procedure and use appropriate safety procedures. "AC unit" - what does that mean? Press and hold the top one and bottom one. Insufficient amount of refrigerant is still the main cause of a non-functioning AC system. The refrigerant pressure is affected by the outside atmospheric temperature. Rear controls stuck and blowing high heat no matter what happens in other zones. The pollen filter, also known as the cabin air filter or microfilter, is responsible for filtering the air that the passengers breathe in Dodge Grand Caravan. 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. 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. It was out of warranty when it went, and the shop wanted <too much, for it to be worth it to me> to repair it (had it in for another issue & asked them to check it.) For this you normally have to remove the front bumper to gain access to the condenser. When a blower motor goes bad, it usually makes unusual noises when in operation, and the passengers may feel reduced airflow from the air vents. Mechanic refilled with Freon to include dye so that he could detect a leak. by Ed Ruelas on January 04, 2016 Heating AC Inspection Cost Service Location SELECT YOUR VEHICLE $94.99 - $114.99 Price range for all vehicles ( 68) 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. Therefore, the filter performance will not increase significantly even after cleaning. 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. It is generally recommended to replace the cabin air filter every year at the start of the winter season. Many - Many - Many . Blower not working, no air condition or heat? If it stops permanently I'll pull the carpeted cover under the glove box and see if I can pull, clean, and lube the actuator. A professional mechanic can swiftly diagnose the heating issue for you. If only hot air comes out of the air vents in your Grand Caravan, then the problem probably lies somewhere else. This can have different causes. There is only one small cable running to the blower fan which transmits the electricity. A professional mechanic can swiftly diagnose the poor AC cooling issue for you. Sometimes changing the temperature can temporarily stop the sound. A patient turn the temp control to warm because the air conditioner was too cold. To begin troubleshooting, you must first connect the diagnostic tool to your Grand Caravan. Most modern vehicles use R-134a refrigerant, but newer vehicles are increasingly using R-1234yf as a more environmentally friendly replacement. That means every time you start the van, climate controls go through self adjustment and check every blend door actuator and blend door. 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. Check the system pressure. Keep in mind that the front AC will not cool the van as good as having a twin system. The blend door actuator may require recalibration after replacement. In that case driving at high speed should blow some cold air from the AC. 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. Next You will need to press the highest and lowest buttons on the AC control panel until the AC light begins to flash. Did you ever come across a Problem like this? 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. 0%. The AC stopped working a while ago. Your vehicles air conditioning system has an expansion vale or an orifice tube, depending on the model. A maximum of the metal pipes can be rinsed here. Your air conditioning system no longer cools properly? Weak key fob battery. RB The Mechanic assumes no liability for property damages or injury incurred as a result of any of the information contained in this video. 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. An overcharged system not only affects cooling performance but can also damage the compressor and sometimes can cause a major leak. The hot coolant is pumped through the heater core located behind the dashboard. The sound is most prominent right after you start the vehicle. 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. 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. 2023 Vehicle History Inc. All Rights Reserved. The vehicle was not repaired. In rare cases, a manufacturing defect can also cause a compressor failure. 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. 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. No luck. Did you ever fix it my van has the same problem but all my blend doors ect.. A dirty filter causes the overall ventilation of the interior to deteriorate resulting in reduced cooling, heating and air flow. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. 1. Dirty evaporator can cause weak airflow and reduce the heating performance in Grand Caravan. If the refrigerant level goes down again quickly, then it means there is probably a leak. . Unfortunately, this procedure does not allow you to get into the deeper layers of the filter. Heat stops working intermittently on really cold days, the only way to fix it is to turn the car off and restart, or switch the temp controls over to . A clogged or leaking condenser can also be the reason for air-conditioning not working properly on your Grand Caravan. The videos are intended for information only. 2019 Dodge Grand Caravan 35 Anniversary Model. Happened on the 2008 Dodge I drive for the company. Therefore it is recommended to do this at a workshop. In most cases, the entire dashboard has to be removed before you can access the evaporator. Hey its possible Just on the right screen corner where it says rear climate ,Tap it and you'll find the unlock and lock air climate in rear so you can switch it back on or off whichever you like. Too much oil: If there is excessive amount of oil added with the refrigerant, it can cause compressor performance issues which reduces cooling efficiency, and can also cause premature compressor failure. 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. The Questions and Answers on this page are the statements and opinions of their respective authors and not VehicleHistory.com. If you have front AC that is working fine then the rear should also work if the blower is working. Determine if the blend door is moving. If the temperature doesn't change at all, the door may be stuck or broken. Due to the complexity of the replacement job, it is not recommended as a DIY project. This setting only directs air to your face and upper body and not your feet. Check fan relay. If the condenser is dirty on your Grand Caravan, the simplest solution is to clean it. 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 The two systems are joined, so if for example you lose freon, you will lose AC in the front and rear. Two compressors for a rear air problem? 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. The top button controls the rear wiper on constant and the bottom button controls the rear wiper washer fluid. 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. What was replaced? Switch the Mode Control knob to "Panel." This setting only guides air to your face and upper body, not your legs. Don't worry, you can still start your vehicle - the battery is only used to send the signal for locking/unlocking. In the AC settings, find the three leftmost buttons. In rare cases, a fault in the climate control unit can cause the heater to stop functioning. 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. But if the thermostat has developed a defect and is stuck to open position, the coolant will continuously flow through the radiator and the engine may take a long time to reach its optimal operating temperature. There can also be a refrigerant leak in the evaporator, in that case the evaporator will have to be replaced. Like the radiator, the air conditioning condenser on Dodge Grand Caravan sits at the front of the vehicle and is responsible for releasing the heat from the refrigerant into the ambient air. Before you consider replacing the heater core in your Grand Caravan, it is recommended to flush the existing heater core. 92492 20+ yrs. This setting only guides air to your face and upper body, not your legs. The heating system in Grand Caravan uses hot coolant or antifreeze from the engine block to heat the interior of the vehicle. A dirty filter causes the overall ventilation of the interior to deteriorate resulting in reduced cooling and air flow. If the refrigerant level goes down again quickly, it means there is probably a leak. Ditto. does not research or authenticate any of the Answers provided. When a blower motor goes bad, it usually makes unusual noises when in operation, and the passengers may feel reduced air flow from the AC vents. 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. Dirty cabin air filter The pollen filter, also known as the cabin filter or microfilter, is a central component of the ventilation system in your Dodge Grand Caravan. The blower motor is the central component of the air conditioning system in Grand Caravan, responsible for blowing cold air through the AC vents. Step 1 Start the Dodge Caravan. Therefore, the filter performance will not increase significantly even after cleaning. 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 may need recharging after every few years. If the liquid changes color, then there is a leak in head gasket. The vehicle has an air conditioning system (AC) to cool passengers during warm weather and hot drives. The procedure, commonly called calibration, initiates the self diagnostic test and system reset for the vehicle's air conditioning. 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. It also puts unnecessary strain on the entire AC system which negatively impacts your Grand Caravans fuel consumption. The vehicle replaced a 2013 Chevrolet Equinox. 8 people found this helpful. When looking for the reason, you should start with the most obvious causes: low coolant level or air in the cooling system, and clogged heater core. Jul 18, 2012. Where are the 3 buttons to hold for reset? 18,300 miles. The failure mileage was 125,393. Instead of changing the cabin air filter in Grand Caravan, it is often recommended to first clean the filter. The manufacturer was not notified of the failure. HVAC with 3 zone controls. When the heater is turned on and the AC turned off, the compressor does not turn on and the evaporator is not cooled. If the blend door actuator fails to fully open the blend door towards the heater core, it will result in poor heating performance. The air flow from the vents is choppy and not smooth. There is no fixed time for replacing the cabin air filter, but most manufacturers recommend a change after 10,000-20,000 miles. Resetting the system is something You can do from home but it takes a few steps. Once the leak has been found, this must be closed again by replacing the respective component. Note: Dirty cabin air filter mostly only leads to reduced cooling. Keep in mind that reduced air flow 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. Over time, grime, bugs and other small particles can build up on its surface and in the gaps of its mesh. Home Troubleshooting Dodge Grand Caravan heater not working causes and diagnosis. (But it bothers the wife about 10 days out of the year.) The dryer is often overlooked. A broken compressor is usually irreparable. 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. The AC will start to calibrate and reset. 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. Flushing is done by pushing water through the outlet hose of the heater core and draining the gunk from the inlet hose. dash and headlights RESET PROCEDURE With the ignition off, press the TRIP and RESET buttons at the same time you turn on the ignition. 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. The rear HVAC housing has electric stepper motors driving the temperature blend door (cool/warm) and the air mode door (side/headliner vents). could the drain be plug and the evaporator is freezing up? If Your climate control is not working properly in Your Dodge Caravan then You may want to reset it. 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. Once you start the car back up the A/C will still be off. 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. It is a well known problem and any Caravan I have every seen has had this problem. Instead of changing it directly, it is often recommended to first clean the pollen filter. 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. Remove the cap from the low pressure service port labelled L, and connect the AC recharge kit. 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. This information is typically located under the hood and/or in the owners manual. Hope this helps. Therefore, it is recommended to do this in a workshop. Or you can do it yourself for under $400 but it is a PITA and it will last a few years and just have the same problem. Blend door actuator plays a role in controlling the air flow and temperature inside your Grand Caravan. 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. 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. As a rule, there is no avoiding a change if the filter is dirty. A defective sealing ring, a worn line or a condenser that has been damaged by a stone chip are the most common causes. Christopher S July 30, 2020. Water pumps usually last for more than 100,000 miles, but they can fail at any time. This mode is useful for clearing fog from the windows. 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. Dodge Grand Caravan Sport: 2003 Grand Caravan Sport 3.8l 128000km 2003 Grand Caravan Sport 3.8l 128000km with front- and rear-AC system. It consists of moving parts that convert what is actually a gaseous coolant into liquid this is how your vehicle is cooled. Instead of changing the cabin air filter in Grand Caravan, it is often recommended to first clean the filter. If the pressure is higher than the recommended pressure, let some refrigerant out preferably into a rag to avoid exposure. Shake the canister briefly and release the refrigerant into the system until the recommended pressure has been achieved. 8.8K views 1 year ago Is rear defroster blinking on your Dodge Grand Caravan and CLIIMATE CONTROLS do not work for first 10 - 30 seconds after you have started the van? The Fora platform includes forum software by XenForo. The heater in Dodge Grand Caravan ensures comfortable temperature in the passenger compartment when the weather is chilly. Due to the complexity of the replacement job, it is not recommended as a DIY project. This is an illustration of the normal repair that we see in the shop. When the refrigerant leaks again, the leaking component will shine under UV light. If your Grand Caravan has push start/stop button, then its possible that your vehicle may not start due to weak key fob battery. Rear blower will not turn on. Over time, these dust particles can builds up on the fins and block the air flow through the evaporator, resulting in poor cooling. Insert the key into the ignition and turn to the "On" position. This can happen due to a leak or if the AC has not been recharged for a long time. Low coolant level or air in the heater core can sometimes cause sloshing sound from behind the dashboard when the engine is running. With the tool connected, turn on the ignition. As soon as the light starts to flash release the two buttons and the system will reset. Very common problem & they were surprised there . Grand Caravan Crew 3.6L V6 Automatic transmission 46,300 miles AC stopped blowing cold. The vehicle was taken to all star Dodge Chrysler Jeep ram at 11503 st charles rock rd, bridgeton, mo 63044, (314) 291-2050 where it was diagnosed that the power control module needed to be replaced. In the event of a defect, the mechanic can directly initiate the repair. Heat up and heat down?I have a 2017 Dodge Grand Caravan back AC very hit and miss - not working, Pull the M 11 fuse if you dont have the power button. Remove the blower fan in a Dodge Caravan by first disconnecting the battery, then waiting two minutes to disable the airbags. Locate the three leftmost buttons in the AC controls. Another patient said the AC is just blowing warm air. The compressor is the heart of the air conditioning system in Dodge Grand Caravan. If there is a problem with the temperature of the air conditioning system, it could be due to a bad blend door actuator. Clogged heater core is one of the leading causes of heating not working in Dodge Grand Caravan. Therefore, the filter performance will not increase significantly even after cleaning. The AC light should illuminate and then flash. In addition to the vehicle make, model, and engine type, you usually also have to type in the Vehicle Identification Number (VIN). Rear AC Block Kit Ford E-Series Van. 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. It will be anywhere from $1000 tp $1500 to have a garage do the work. There are flush kits available in the market that can help you do the job yourself. The inside of the vehicle is developing a bad moldy smell. Join now! Unfortunately, this procedure does not allow you to get into the deeper layers of the filter. 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. Switch the Mode Control knob to "Panel." The Dodge Caravan is a minivan manufactured and sold by the Dodge division of the Chrysler Group. I bought it used, but the air worked fine when I bought it in 2004. 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. 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 cooling. The air conditioning system in Dodge Grand Caravan has a condenser coil that sits at the front of the vehicle, and is responsible for releasing the heat from the refrigerant into the ambient air. Additionally, if you drive your Grand Caravan with AC system set to fresh outside air most of the time, your cabin air filter will get dirty much sooner as compared to air recirculation mode. 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. Unless the wiring issue is fixed, the fuse will blow again. If your Grand Caravan is losing coolant, that means there is a leak somewhere or it is getting burned up inside the engine. Aug 25, 2008 2003 Dodge Caravan helpful Flashing lights! 56,823 Satisfied Customers 20+ yrs. front air stop blowing. Bad Thermostat The job of your Caravan's thermostat is to regulate the temperature of the engine. 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. Thanks for your support! 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. Just like with low refrigerant, the AC in Grand Caravan will blow warm air only if the AC system is overcharged with refrigerant. It's fake /inaccurate, What high and low buttons? Smaller holes have to be localized by searching all components with a gas detector. If you dont have the system serviced for a long time on your Grand Caravan, the refrigerant level will eventually get so low that the system loses its cooling capacity. Happened on the 2008 Dodge I drive for the company. When looking for the reason, you should always start with the most obvious cause, insufficient amount of refrigerant. The front air con works greatany ideas would could be the problem and how to fix it! Remove the glove compartment, unscrew the blower fan and then unplug the electricity to it. This gives you a fresh start for the winter, improves defroster performance, and reduces chances of mold or mildew growth. Automatic transmission. A knocking noise could be another indicator of a bad blend door actuator on your Grand Caravan, although its quite rare. Jul 13, 2012. Copyright 2023 Leaf Group Ltd. / Leaf Group Media, Auto User Manual: Dodge Caravan Owner's Manual. Air should blow out of the vents at different intervals during the reset. stop for 20 minutes and it work for 1 hour then quit. 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 looking for the reason, you should always start with the most obvious cause, low refrigerant level in the system. 24,855 miles. Caravan fan and ac not working 1 Answer. What these are and what you can do about it, we explain in this article. The wiring harness itself can go bad. It is the sole responsibility of the viewer to assume this risk. The pollen filter, also known as the cabin filter or microfilter, is a central component of the ventilation system in your Dodge Grand Caravan. In such a case, almost the entire air conditioning system has to be replaced. If fans arent coming on, you should have engine overheating issues. It is important that you enter this 100% correctly, otherwise the result of the search may be inaccurate. What 3 far left buttons? Over time, grime, bugs and other small particles can build up on its surface and in the gaps of its mesh. 1. If the condenser is dirty on your Grand Caravan, the simplest solution is to clean it. . My 2003 Dodge Grand caravan blows hot air and my friends that was looking under the hood said that the fans arent coming on, not sure what fans but what do I do. Leaks in the head gasket can cause all sorts of problems in your Grand Caravan including poor heater performance. experience as repair shop manager and technician. I have a 1994 Dodge Caravan with 130,000 miles on it. Specifically replace the condenser, evacuated, and recharge the AC system with R134 refrigerant on a 2002 Dodge Caravan minivan. This vehicle was purchased in July 2014 and as of July 2015, the REAR Air Conditioning unit has stopped working. It is also cryogenic and can cause severe frostbite when it comes in contact with the skin. Amedee is online now Dirty cabin air filter is the leading cause of weak heater airflow in Dodge Grand Caravan. There are 2 separate evaporators but only one compressor. Tried all combinations of power on, rotating the know etc. Find a better mechanic. Cabin air filter captures most of the dirt or other airborne particles, but some escape and fall on to the evaporator. This puts strain on the motor and further reduces the air flow and cooling performance, and may also cause unusual noises from behind the dashboard. 3.8 out of 5 stars. 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