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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. The wiring harness itself can go bad. Air should blow out of the vents at different intervals during the reset. But if the weather is too cold, the engine may never reach its optimal operating temperature with a stuck open thermostat. There is no fixed time for replacing the cabin air filter, but most manufacturers recommend a change after 10,000-20,000 miles. 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. 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. Locate the three leftmost buttons in the AC controls. Determine if the blend door is moving. Turn the Mode Control dial to "Panel." 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. Step 1 Start the Dodge Caravan. Turn on the AC and set it to the coldest setting, and the fan speed to maximum. 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. Leaks in the head gasket can cause all sorts of problems in your Grand Caravan including poor heater performance. Remove the cap from the low pressure service port labelled L, and connect the AC recharge kit. The blend door actuator may require recalibration after replacement. Heat and air works great but if you say, switch to floor then it willbe floor and face. 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. Aug 25, 2008 2003 Dodge Caravan helpful Flashing lights! 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. If you drive your vehicle in dusty or polluted environment, the filter can get dirty much sooner than manufacturers recommendation. 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 . Insufficient lubricant: The compressor in Grand Caravan needs lubrication to function properly and minimize mechanical wear by reducing friction. In the event of a defect, the mechanic can directly initiate the repair. 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. 5th Generation Chrysler Minivans: 2008-2020, 4th Generation Chrysler Minivans: 2001-2007, 3rd Generation Chrysler Minivans: 1996-2000, 2nd Generation Chrysler Minivans: 1991-1995. Insufficient amount of refrigerant in the AC system is one of the leading causes of AC not blowing cold air in Grand Caravan. 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. Bought brand new in March 2012. 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. Switch the Mode Control knob to "Panel." This setting only guides air to your face and upper body, not your legs. Did you ever come across a Problem like this? This vehicle was purchased in July 2014 and as of July 2015, the REAR Air Conditioning unit has stopped working. The AC stopped working a while ago. Weak key fob battery. Step 3 Locate the three leftmost buttons in the AC controls. Low coolant level or air in the cooling system can cause the heater to stop working properly in Grand Caravan. The procedure, commonly called calibration, initiates the self diagnostic test and system reset for the vehicle's air conditioning. The front air con works greatany ideas would could be the problem and how to fix it! 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. Leak discovered. Less common causes are clogged expansion valve or orifice tube, overcharged oil, faulty blend door actuator, or a defect in the climate control unit. 2000 Grand Caravan - drivers side heat not working - Passenger and rear are fine 2 Answers. Don't even try that "method" .it's a copy of a dumb directions of a dealership website word for word And it continues to say that the left buttons are for the washer fluid and the rear defroster or something like that . 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A dirty filter causes the overall ventilation of the interior to deteriorate resulting in reduced cooling and air flow. We research hundreds of models each A knocking noise could be another indicator of a bad blend door actuator on your Grand Caravan, although its quite rare. Check the system pressure. 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. Grand Caravan Blacktop Package 3.6L. Remove the blower motor, typically located under the passenger side dashboard, and inspect the condition of the cage. 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. 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. Dodge Caravan Climate Control Air Conditioner Blows Hot A/C blowing hot air CHEWBUG2 MEMBER DODGE CARAVAN I am a lady and do not know alot about cars, but I think I got scammed when I took my car in to have the a/c fixed. An overcharged system not only affects cooling performance but can also damage the compressor and sometimes can cause a major leak. The system is filled with forming gas (nitrogen with a little hydrogen) in the workshop. By filling and properly bleeding the system the heat should come back. Vehicle History's team of automotive experts brings you the most accurate and up-to-date used car information. Copyright 2023 Leaf Group Ltd. / Leaf Group Media, Auto User Manual: Dodge Caravan Owner's Manual. If you turn it to heat, does the air get hotter? Therefore, the filter performance will not increase significantly even after cleaning. In any case, it is advisable for laypersons to visit a workshop. It consists of moving parts that convert what is actually a gaseous coolant into liquid this is how your vehicle is cooled. If it is blown, replacing the fuse will only solve the problem for a very limited period of time. Most diagnostic devices then ask for some information about the vehicle. There are several causes for AC not blowing cold air in Grand Caravan, which we will go through in this article. Very common problem & they were surprised there . Mark helpful. Release the buttons once you see the light flash. The heating system in Grand Caravan uses hot coolant or antifreeze from the engine block to heat the interior of the vehicle. You dont necessarily have to visit a workshop to clean or replace the pollen filter on your Grand Caravan. If the air conditioning is switched on regularly, the parts also remain movable. This mode is useful for clearing fog from the windows. It is a filter! The inside of the vehicle is developing a bad moldy smell. Just have it refilled and you can drive with pleasant temperatures again. Jul 13, 2012. In case of severe contamination, multiple components may have to be replaced, including the condenser, the evaporator and the compressor. Just like with low refrigerant, the AC in Grand Caravan will blow warm air only if the AC system is overcharged with refrigerant. Don't worry, you can still start your vehicle - the battery is only used to send the signal for locking/unlocking. 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 minivan was first manufactured in 1983 and remains in production as of 2011. 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 top button will flash when the reset is completed. Place the key into the ignition and switch it to the "On" position. Another patient said the AC is just blowing warm air. 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. I have a 2005 . Ask your Dodge dealer. 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. If the temperature doesn't change at all, the door may be stuck or broken. A knocking noise from behind the dashboard could be an indicator of a bad blend door actuator in your Grand Caravan. 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. Over time, grime, bugs and other small particles can build up on its surface and in the gaps of its mesh. 92492 20+ yrs. could the drain be plug and the evaporator is freezing up? You must start the Dodge Caravan to reset the Dodge Caravan climate control. Warning: Wear gloves and safety glasses before recharging the AC to avoid accidental exposure to harmful chemicals in the refrigerant. Place the key into the ignition and switch it to the "On" position. Specifically replace the condenser, evacuated, and recharge the AC system with R134 refrigerant on a 2002 Dodge Caravan minivan. 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. There can also be a refrigerant leak in the evaporator, in that case the evaporator will have to be replaced. As a rule, there is no avoiding a change if the filter is dirty. 2010 T&C Touring, 3.8L, 6 Speed 62TE Trans. Refrigerant leak in Grand Caravan can be caused by leaking O-ring seals, leaking condenser or evaporator core, or a cracked hose. If only hot air comes out of the air vents in your Grand Caravan, then the problem probably lies somewhere else. 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. Therefore, the filter performance will not increase significantly even after cleaning. stop for 20 minutes and it work for 1 hour then quit. The sound is something like a light tapping on the door and it happens when you turn on the air conditioning system or turn off the engine. Due to the complexity of the replacement job, it is not recommended as a DIY project. A patient turn the temp control to warm because the air conditioner was too cold. Low coolant level or air in the heater core can sometimes cause sloshing sound from behind the dashboard when the engine is running. 24,855 miles. A defective sealing ring, a worn line or a condenser that has been damaged by a stone chip are the most common causes. Finding these mostly very small leaks is often not easy. 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. Wisconsin certified. 56,823 Satisfied Customers 20+ yrs. Insert the key into the ignition and turn to the "On" position. In this way, it can be determined whether the loss of refrigerant is due to a defective condenser. A blown head gasket can cause the exhaust gases from the engine to enter the cooling system and plug the heater core. You dont have to remove the heater core in your Grand Caravan to check if it is clogged. Just make sure the temp control on the upper console facing the rear seats is not turn to warm. This is mostly common in older vehicles. 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. 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. A bad water pump will not only cause poor heating, but can also result in engine damage due to overheating. A bad blend door actuator usually cannot be repaired and must be replaced with a new one. The leak can be diagnosed by injecting small amount of fluorescent dye into the AC system. Unfortunately, this procedure does not allow you to get into the deeper layers of the filter. A professional mechanic can swiftly diagnose the poor AC cooling issue for you. Clearing the air from the heater core will not help until the head gasket has been replaced. The sound is most prominent right after you start the vehicle. In the AC settings, find the three leftmost buttons. If you have front AC that is working fine then the rear should also work if the blower is working. 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. VehicleHistory.com 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. Effective March 26, 2020 and until further notice, UPS, FEDEX and USPS have suspended their Service Guarantee for all shipments from any origin to any destination. The compressor is the heart of the air conditioning system in Dodge Grand Caravan. Remove the glove compartment, unscrew the blower fan and then unplug the electricity to it. The only thing that helps is swapping with a new one. . Both of these are at risk of clogging due to contamination, for example due to metal shavings from a failing compressor. Press the top button to complete the reset. If the liquid changes color, then there is a leak in head gasket. Press and hold the top one and bottom one. 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. Two compressors for a rear air problem? The dryer is often overlooked. 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. ChryslerMinivan.net is the best forum for Chrysler Town and Country owners to discuss mileage, price, problems, towing and more. . My rear a/c is not working in my 2008 town and country, blowers work fine but only blow warm air. One is labelled H for high-pressure and the other one is labelled L for low-pressure. You cannot repair a broken blower motor, the part must be replaced with a new one. Therefore it is important to diagnose a failing water pump at early stages to avoid expensive repairs later on. A worn out or weakened blower motor can also produce abnormal sounds when in operation. 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. If you drive your vehicle in dusty or polluted environment, the filter can get dirty much sooner than manufacturers recommendation. 1. Next You will need to press the highest and lowest buttons on the AC control panel until the AC light begins to flash. This hinders the condensers ability to release heat as less air passes through the mesh, which results in poor cooling in the interior. Bad Thermostat The job of your Caravan's thermostat is to regulate the temperature of the engine. FAILING. The two systems are joined, so if for example you lose freon, you will lose AC in the front and rear. Dirty evaporator can also be the reason for AC problems on your 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. There are two ports in the air conditioning system of Grand Caravan. 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 first thing that you would want to do is locate the fuse for your Caravan's radiator fan and make sure that it hasn't blown. The sound will be most prominent for a few seconds when you turn on the air conditioning or adjust the temperature. For us shade tree mechanics and cheap people the best fix is to just block the rear ac off. The Questions and Answers on this page are the statements and opinions of their respective authors and not VehicleHistory.com. Check the owners manual of your vehicle or the fuse box cover to find the exact location of the AC fuses. 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. If there is a problem with the temperature of the air conditioning system, it could be due to a bad blend door actuator. To begin troubleshooting, you must first connect the diagnostic tool to your Grand Caravan. Connect the pressure gauge to the low pressure (L) port in Grand Caravan. 166. However, if you turn the A/C completely Off, turn the ignition system off. Instead of changing the cabin air filter in Grand Caravan, it is often recommended to first clean the 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 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. 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. 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. Christopher S July 30, 2020. The vehicle replaced a 2013 Chevrolet Equinox. 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. 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. Your vehicles air conditioning system has an expansion vale or an orifice tube, depending on the model. If the water pump has worn out and the coolant is not being circulated as effectively as it used to, it can cause the heater to stop working properly because theres less coolant available to transfer heat between the engine and the heater core. Blend door actuator plays a role in controlling the temperature inside your Grand Caravan. If the refrigerant level goes down again quickly, it means there is probably a leak. If this is the case, the only option is to replace the broken part. The AC will start to calibrate and reset. However, if you dont turn on the air conditioning on your Grand Caravan for a long time, the parts will stick.