2012 Dodge Grand Caravan Heater Not Working Properly 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? Doing a DIY diesel swap? 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. A knocking noise could be another indicator of a bad blend door actuator on your Grand Caravan, although its quite rare. Did you ever come across a Problem like this? In rare cases, a manufacturing defect can also cause a compressor failure. If this is the case, the only option is to replace the broken part. Note: Dirty cabin air filter mostly only leads to reduced cooling. The sound will be most prominent for a few seconds when you turn on the air conditioning or adjust the temperature. Clearing the air from the heater core will not help until the head gasket has been replaced. . Insufficient lubricant: The compressor in Grand Caravan needs lubrication to function properly and minimize mechanical wear by reducing friction. There can also be a refrigerant leak in the evaporator, in that case the evaporator will have to be replaced. If only hot air comes out of the air vents in your Grand Caravan, then the problem probably lies somewhere else. Dodge Grand Caravan AC blowing hot air - causes and how to fix it The hot coolant is pumped through the heater core located behind the dashboard. Vehicle History's team of automotive experts brings you the most accurate and up-to-date used car information. Over time, these dust particles can builds up on the fins and block the air flow through the evaporator, resulting in poor cooling. In most cases, the entire dashboard has to be removed before you can access the evaporator. If it is blown, replacing the fuse will only solve the problem for a very limited period of time. The compressor is the heart of the air conditioning system in Dodge Grand Caravan. experience as repair shop manager and technician. In addition to the vehicle make, model, and engine type, you usually also have to type in the Vehicle Identification Number (VIN). Rear blower will not turn on. In the event of a defect, the mechanic can directly initiate the repair. If the temperature changes a little, the module may need calibration with the scan tool (StarScan, StarMobile, etc). If the liquid changes color, then there is a leak in head gasket. By filling and properly bleeding the system the heat should come back. A knocking noise from behind the dashboard could be an indicator of a bad blend door actuator in your Grand Caravan. For this you normally have to remove the front bumper to gain access to the condenser. Rear ac in Dodge Grand Caravan not blowing. 2019. 92492 - JustAnswer Since the heater core is usually slightly higher, the air will accumulate in there first. Water pumps usually last for more than 100,000 miles, but they can fail at any time. 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. Where are the 3 buttons to hold for reset? The inside of the vehicle is developing a bad moldy smell. Therefore, the filter performance will not increase significantly even after cleaning. Home Troubleshooting Dodge Grand Caravan heater not working causes and diagnosis. Rear A/C Block off Kit Air Conditioning Block Off Compatible with 2012-2016 Town/Country Dodge Caravan w/Dual Bolts. 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. 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. Due to factors beyond the control of RB The Mechanic, it cannot guarantee against unauthorized modifications of this information. The rear HVAC housing has electric stepper motors driving the temperature blend door (cool/warm) and the air mode door (side/headliner vents). The head gasket is responsible for providing the seal between the engine block and cylinder heads. The two systems are joined, so if for example you lose freon, you will lose AC in the front and rear. Insufficient amount of refrigerant in the AC system is one of the leading causes of AC not blowing cold air in Grand Caravan. DODGE CARAVAN FLASHING LIGHTS A/C AND RECIRC - Fixya The blend door actuator may require recalibration after replacement. 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. Flushing is done by pushing water through the outlet hose of the heater core and draining the gunk from the inlet hose. Check which type of refrigerant your vehicle uses. (But it bothers the wife about 10 days out of the year.) Step 1 Start the Dodge Caravan. Mechanic refilled with Freon to include dye so that he could detect a leak. Thanks for your support! Jun 14, 2017. Automatic transmission. This is mostly common in older vehicles. 3 offers from $32.73. 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. Switch the Mode Control knob to "Panel." Maybe only the condenser side fan is not working. Possible leaks or failed components in the rear. The pollen filter, also known as the cabin filter or microfilter, is a central component of the ventilation system in your Dodge Grand Caravan. It consists of moving parts that convert what is actually a gaseous coolant into liquid this is how your vehicle is cooled. Another patient said the AC is just blowing warm air. Any injury, damage or loss that may result from improper use of these tools, equipment, or the information contained in this video is the sole responsibility of the user and not RB The Mechanic Due to the complexity of the replacement job, it is not recommended as a DIY project. 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. Leak was due. It is a filter! Less common causes are clogged expansion valve or orifice tube, overcharged oil, faulty blend door actuator, or a defect in the climate control unit. Seem to be moving and so forth. 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. IMPORTANT COVID 19 SHIPPING NOTICE. Check all front HVAC fuses and relays M11 and J15 I believe, all good. Another patient said the AC is just blowing warm air. 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.) In any case, it is advisable for laypersons to visit a workshop. does not research or authenticate any of the Answers provided. Dodge Caravan Questions - Rear A/C Problems - CarGurus 2023 Vehicle History Inc. All Rights Reserved. A clogged or leaking condenser can also be the reason for air-conditioning not working properly on your Grand Caravan. This gives you a fresh start for the winter, improves defroster performance, and reduces chances of mold or mildew growth. 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. The heater in Dodge Grand Caravan ensures comfortable temperature in the passenger compartment when the weather is chilly. If found dirty, clean it using a brush. experience as repair shop manager and technician. There are several causes for AC not blowing cold air in Grand Caravan, which we will go through in this article. There is no prescribed time for changing cabin air filter, but most manufacturers recommend a change after 10,000-20,000 miles. There are 2 separate evaporators but only one compressor. Dirty evaporator can also significantly reduce AC cooling performance in Grand Caravan. If one is hot and the other is cold, you have a plugged heater core. No luck. A patient turn the temp control to warm because the air conditioner was too cold. 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. 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. 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. This is . When you purchase through links on our site, we may earn an affiliate commission, which supports our community. If you drive your vehicle in dusty or polluted environment, the filter can get dirty much sooner than manufacturers recommendation. ChryslerMinivan.net is the best forum for Chrysler Town and Country owners to discuss mileage, price, problems, towing and more. However, the high-pressure refrigerant pulls these chips back with it during operation and the next damage is inevitable. Feel both the rubber lines going in and out of the heater core after the engine has warmed up. 2016 Dodge Grand Caravan This problem may be covered under warranty. 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. Heat and air works great but if you say, switch to floor then it willbe floor and face. Locate the three leftmost buttons in the AC controls. The block off kit can be found here: www.streetrodguys.com Sometimes changing the temperature can temporarily stop the sound. No information contained in this video shall create any expressed or implied warranty or guarantee of any particular result. 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. RB The Mechanic assumes no liability for property damages or injury incurred as a result of any of the information contained in this video. There is only one small cable running to the blower fan which transmits the electricity. 92492 20+ yrs. With the tool connected, turn on the ignition. "AC unit" - what does that mean? The water pump is the heart of the cooling system in Grand Caravan responsible for pumping coolant throughout the system and cooling the engine. 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. Had front blower fan not working and rear was. The front air con works greatany ideas would could be the problem and how to fix it! We research hundreds of models each Wisconsin certified. 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. A blown head gasket can cause coolant to leak into the combustion chambers and burn off. Happened on the 2008 Dodge I drive for the company. Check fan relay. Specifically replace the condenser, evacuated, and recharge the AC system with R134 refrigerant on a 2002 Dodge Caravan minivan. Caravan fan and ac not working 1 Answer. Therefore it is important to diagnose a failing water pump at early stages to avoid expensive repairs later on. Instead of changing it directly, it is often recommended to first clean the pollen filter. Grand Caravan SXT 3.6L V6. exactly issue im not sure why people mentioned the filter or a door not closing those 2 has nothing to do with a fan not working !! 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. Two compressors for a rear air problem? Happened on the 2008 Dodge I drive for the company. As a rule, there is no avoiding a change if the filter is dirty. Air Conditioner Problems of 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 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. 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This mode is useful for clearing fog from the windows. 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. 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. Jul 18, 2012. 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. You must start the Dodge Caravan to reset the Dodge Caravan climate control. Its possible the fan is dead, and you may have to replace it. Press the top button to complete the reset. Unfortunately, this procedure does not allow you to get into the deeper layers of the filter. 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. Dirty evaporator can cause weak airflow and reduce the heating performance in Grand Caravan. If only hot air comes out of the air vents in your Grand Caravan, then the problem probably lies somewhere else. Over time, the heater core can begin to rust or mineral deposits can form in these channels, blocking the flow of the coolant. Dodge Grand Caravan won't start - causes and how to fix it For this you normally have to remove the front bumper to gain access to the condenser. 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This information is typically located under the hood and/or in the owners manual. Resetting the system is something You can do from home but it takes a few steps. The sound is most prominent right after you start the vehicle. 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. Just make sure the temp control on the upper console facing the rear seats is not turn to warm. Dodge Grand Caravan. How to Reset an Air Conditioner on a Dodge Caravan In case of severe contamination, multiple components may have to be replaced, including the condenser, the evaporator and the compressor. You dont have to remove the heater core in your Grand Caravan to check if it is clogged. A/c Blowing Hot Air: I Am a Lady and Do Not Know Alot About - 2CarPros She currently resides in South Florida. Tried the above reset, didn't work. My Dodge grand Caravan rear AC is blowing hot air while my Dodge Caravan - Looking for a Used Caravan in your area? What 3 far left buttons? 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 there is a problem with the temperature of the air conditioning system, it could be due to a bad blend door actuator. Since Dodge Grand Caravan is equipped with on-board diagnostics (OBD), a fault diagnosis can provide initial indications of where the malfunction is located in the air conditioning system. 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.
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