A low refrigerant level in your Grand Caravan does not necessarily mean there is a leak. A dirty filter causes the overall ventilation of the interior to deteriorate resulting in reduced cooling and air flow. If you drive your vehicle in dusty or polluted environment, the filter can get dirty much sooner than manufacturers recommendation. Feel both the rubber lines going in and out of the heater core after the engine has warmed up. She currently resides in South Florida. A broken compressor is usually irreparable. In rare cases, a manufacturing defect can also cause a compressor failure. This hinders the condensers ability to release heat as less air passes through the mesh, which results in poor cooling in the interior. HVAC with 3 zone controls. What these are and what you can do about it, we explain in this article. Unfortunately, this procedure does not allow you to get into the deeper layers of the filter. Clogged heater core is one of the leading causes of heating not working in Dodge Grand Caravan. 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. Thanks for your support! The system is filled with forming gas (nitrogen with a little hydrogen) in the workshop. Step 1 Start the Dodge Caravan. 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. 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. My rear a/c is not working in my 2008 town and country, blowers work fine but only blow warm air. If found dirty, clean it using a brush. It will be anywhere from $1000 tp $1500 to have a garage do the work. The head gasket is responsible for providing the seal between the engine block and cylinder heads. 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. If only hot air comes out of the air vents in your Grand Caravan, then the problem probably lies somewhere else. You can use power washer for cleaning, but make sure that its at low pressure setting, as high pressure can easily damage the delicate fins on the condenser. 166. In any case, it is advisable for laypersons to visit a workshop. If you only install a new compressor here, another failure is inevitable, as the chips immediately destroy the new component. Happened on the 2008 Dodge I drive for the company. Blower not. Remove the blower fan in a Dodge Caravan by first disconnecting the battery, then waiting two minutes to disable the airbags. The blower motor is the central component of the air conditioning system in Grand Caravan, responsible for blowing cold air through the AC vents. Keep in mind, an AC compressor can fail without any apparent cause, especially in older vehicles or in vehicles that have racked up too many miles. What was replaced? This gives you a fresh start for the winter, improves defroster performance, and reduces chances of mold or mildew growth. The sound will be most prominent for a few seconds when you turn on the air conditioning or adjust the temperature. If the temperature changes a little, the module may need calibration with the scan tool (StarScan, StarMobile, etc). 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. 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. Join now! Dirty evaporator can also significantly reduce AC cooling performance in Grand Caravan. This would require a scan tool to confirm correct operation. 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. A patient turn the temp control to warm because the air conditioner was too cold. The AC will start to calibrate and reset. 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. Your air conditioning system no longer cools properly? No luck. tried different settings, defrost, floor and turn the heat on. Driving your Dodge Grand Caravan in warmer temperatures with a malfunctioning air conditioning system can quickly become a nuisance when sweltering heat builds up in the cabin. 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. In rare cases, a fault in the climate control unit can cause the AC to stop cooling. Flushing is done by pushing water through the outlet hose of the heater core and draining the gunk from the inlet hose. The sound is something like a light tapping on the door and it typically happens when you turn on/off the air conditioning system or start the engine. 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. What 3 far left buttons? Rear controls stuck and blowing high heat no matter what happens in other zones. 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. The vehicle replaced a 2013 Chevrolet Equinox. Connect the pressure gauge to the low pressure (L) port in Grand Caravan. The rear HVAC housing has electric stepper motors driving the temperature blend door (cool/warm) and the air mode door (side/headliner vents). Many - Many - Many . Dirty evaporator can cause weak airflow and reduce the heating performance in Grand Caravan. Due to the complexity of the replacement job, it is not recommended as a DIY project. Unfortunately, this procedure does not allow you to get into the deeper layers of the filter. 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. 1. After two years, Braun left to pursue her entrepreneurial dreams. Ask your Dodge dealer. If there is a problem with the temperature of the air conditioning system, it could be due to a bad blend door actuator. Eric, Automotive Repair Shop. The hot coolant is pumped through the heater core located behind the dashboard. 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. Instead of changing it directly, it is often recommended to first clean the pollen filter. 2014 Dodge Grand Caravan SXT (about 65k miles) . Blend air doors can be a problem. Check all the relevant fuses and relays related to the air-conditioning system in your Grand Caravan. The blend door actuator may require recalibration after replacement. If the blend door actuator fails to fully open the blend door towards the heater core, it will result in poor heating performance. The result is a defective compressor that can no longer be repaired. Therefore, the filter performance will not increase significantly even after cleaning. However, when you turn the A/C back on by pressing the A/C button rather than the Auto button, it will allow you to also engage the Recirc button. RB The Mechanic assumes no liability for property damages or injury incurred as a result of any of the information contained in this video. Check fan relay. Therefore it is important to diagnose a failing water pump at early stages to avoid expensive repairs later on. Step 2 Turn the Mode Control dial to "Panel." This setting only directs air to your face and upper body and not your feet. 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However, the high-pressure refrigerant pulls these chips back with it during operation and the next damage is inevitable. If only hot air comes out of the air vents in your Grand Caravan, then the problem probably lies somewhere else. A dirty filter causes the overall ventilation of the interior to deteriorate resulting in reduced cooling, heating and air flow. . The heating system in Grand Caravan uses hot coolant or antifreeze from the engine block to heat the interior of the vehicle. Your vehicle may also consume more fuel than normal. The design of the heater core is similar to the radiator, it has narrow internal channels through which hot coolant flows. 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. The wiring harness itself can go bad. 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. 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. 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. Once you start the car back up the A/C will still be off. You dont necessarily have to visit a workshop to clean or replace the pollen filter on your Grand Caravan. Just like with low refrigerant, the AC in Grand Caravan will blow warm air only if the AC system is overcharged with refrigerant. The pollen filter, also known as the cabin filter or microfilter, is a central component of the ventilation system in your Dodge Grand Caravan. 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. 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. 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. CarGurus has 52 nationwide Caravan listings starting at $3,499 . 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. Low coolant level or air in the cooling system can cause the heater to stop working properly in Grand Caravan. Remove the glove compartment, unscrew the blower fan and then unplug the electricity to it. 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. If you drive your vehicle in dusty or polluted environment, the filter can get dirty much sooner than manufacturers recommendation. In rare cases, a fault in the climate control unit can cause the heater to stop functioning. There are flush kits available in the market that can help you do the job yourself. This can have different causes. In any case, it is advisable for laypersons to visit a workshop. 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 the liquid changes color, then there is a leak in head gasket. Once again I don't have rear climate controls in this van. One is labelled H for high-pressure and the other one is labelled L for low-pressure. It is a well known problem and any Caravan I have every seen has had this problem. 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. Insert the key into the ignition and turn to the "On" position. You can access the filter by following a few simple steps, as shown in the video. As soon as the light starts to flash release the two buttons and the system will reset. 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. 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. 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. It is the sole responsibility of the viewer to assume this risk. To begin troubleshooting, you must first connect the diagnostic tool to your Grand Caravan. The most common symptom of faulty blend door actuator on Dodge Grand Caravan is a slight clicking sound repeatedly coming from under the dashboard. Doing a DIY diesel swap? In addition to the normal loss, component defects are usually responsible for the escape of the refrigerant gas on Dodge Grand Caravan. IMPORTANT COVID 19 SHIPPING NOTICE. 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. Blend door actuator plays a role in controlling the air flow and temperature inside your Grand Caravan. 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. (But it bothers the wife about 10 days out of the year.) Low coolant level or air in the heater core can sometimes cause sloshing sound from behind the dashboard when the engine is running. A blown head gasket can cause the exhaust gases from the engine to enter the cooling system and plug the heater core. Amedee is online now 24,855 miles. 56,823 Satisfied Customers 20+ yrs. Did you ever come across a Problem like this? The air conditioning is a blessing, especially in hot temperatures. 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. 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. When looking for the reason, you should always start with the most obvious cause, low refrigerant level in the system. 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 manufacturer was not notified of the failure. VehicleHistory.com Cleaning the evaporator in Grand Caravan is not a simple task. A knocking noise from behind the dashboard could be an indicator of a bad blend door actuator in your Grand Caravan. I have a 2005 . Leak was due. Since the heater core is usually slightly higher, the air will accumulate in there first. The pressure values based on ambient temperatures differ depending on the type of the refrigerant. 2016 Dodge Grand Caravan This problem may be covered under warranty. Determine if the blend door is moving. 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. This is . 3 offers from $32.73. does not research or authenticate any of the Answers provided. The blend door actuator may require recalibration after replacement. 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. Show more. In any case, it is advisable for laypersons to visit a workshop. Sometimes when a thermostat goes bad, it stays stuck open. It also puts unnecessary strain on the entire AC system which negatively impacts your Grand Caravans fuel consumption. There is no prescribed time for changing cabin air filter, but most manufacturers recommend a change after 10,000-20,000 miles. 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. 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. A clogged or leaking condenser can also be the reason for air-conditioning not working properly on your Grand Caravan. Due to the complexity of the replacement job, it is not recommended as a DIY project.
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