The sound will be most prominent for a few seconds when you turn on the air conditioning or adjust the temperature. What to do? 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. If fans arent coming on, you should have engine overheating issues. Connect the pressure gauge to the low pressure (L) port in Grand Caravan. 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. If your Grand Caravan is losing coolant, that means there is a leak somewhere or it is getting burned up inside the engine. Heat and air works great but if you say, switch to floor then it willbe floor and face. Christopher S July 30, 2020. It will be anywhere from $1000 tp $1500 to have a garage do the work. Both should be hot. stop for 20 minutes and it work for 1 hour then quit. 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. Check your vehicles owners manual or look under the hood to find the type of the refrigerant your vehicle uses. There are two ports in the air conditioning system of Grand Caravan. 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. Due to factors beyond the control of RB The Mechanic, it cannot guarantee against unauthorized modifications of this information. It also puts unnecessary strain on the entire AC system which negatively impacts your Grand Caravans fuel consumption. If the temperature changes a little, the module may need calibration with the scan tool (StarScan, StarMobile, etc). 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. Release the buttons once you see the light flash. 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. We research hundreds of models each 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. Jun 14, 2017. Just have it refilled and you can drive with pleasant temperatures again. 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. 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. The rear works fine, AC cycles on fine, but no matter what I can't get any air to come out of the front. 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Mine is 2011 and has turn knobs for fan & temp. 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 design of the heater core is similar to the radiator, it has narrow internal channels through which hot coolant flows. 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? Rear A/C Block off Kit Air Conditioning Block Off Compatible with 2012-2016 Town/Country Dodge Caravan w/Dual Bolts. This is an illustration of the normal repair that we see in the shop. You dont necessarily have to visit a workshop to clean or replace the pollen filter on your Grand Caravan. If the compressor fails, the AC will only blow warm air. The OBDII connector is usually located under the dashboard. For a better experience, please enable JavaScript in your browser before proceeding. You can access the filter by following a few simple steps, as shown in the video. Water pumps usually last for more than 100,000 miles, but they can fail at any time. Blower not. This would require a scan tool to confirm correct operation. A bad water pump will not only cause poor heating, but can also result in engine damage due to overheating. So, all of them must be inspected when diagnosing poor air flow. If one is hot and the other is cold, you have a plugged heater core. When the heater is turned on and the AC turned off, the compressor does not turn on and the evaporator is not cooled. . A low refrigerant level in your Grand Caravan does not necessarily mean there is a leak. The AC stopped working a while ago. Find a better mechanic. Turn on the AC and set it to the coldest setting, and the fan speed to maximum. The Town & Country and Grand Caravan mini vans are susceptible to rear A/C issues, especially in the rust belt. Thanks Therefore, the filter performance will not increase significantly even after cleaning. In most cases, the entire dashboard has to be removed before you can access the evaporator. Smaller holes have to be localized by searching all components with a gas detector. Jul 18, 2012. Warning: Wear gloves and safety glasses before recharging the AC to avoid accidental exposure to harmful chemicals in the refrigerant. The only thing that helps is swapping with a new one. Place the key into the ignition and switch it to the "On" position. After cleaning, reconnect the terminals. What was replaced? Just make sure the temp control on the upper console facing the rear seats is not turn to warm. A dirty filter causes the overall ventilation of the interior to deteriorate resulting in reduced cooling, heating and air flow. Tried the above reset, didn't work. The sound will be most prominent for a few seconds when you turn on the air conditioning or adjust the temperature. 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. 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. does not research or authenticate any of the Answers provided. 2016 Dodge Grand Caravan This problem may be covered under warranty. 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. You cannot repair a broken blower motor, the part must be replaced 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. 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. 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. The procedure, commonly called calibration, initiates the self diagnostic test and system reset for the vehicle's air conditioning. I have air in front of the van but my back is only blowing out hot air. 18,300 miles. If Your climate control is not working properly in Your Dodge Caravan then You may want to reset it. 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. Over time, grime, bugs and other small particles can build up on its surface and in the gaps of its mesh. The sound will be most prominent for a few seconds when you turn on the air conditioning or adjust the temperature. It's fake /inaccurate, What high and low buttons? Most diagnostic devices then ask for some information about the vehicle. If the condenser is dirty on your Grand Caravan, the simplest solution is to clean it. After two years, Braun left to pursue her entrepreneurial dreams. Insufficient amount of refrigerant is still the main cause of a non-functioning AC system. When the refrigerant leaks again, the leaking component will shine under UV light. Once you start the car back up the A/C will still be off. Dodge Grand Caravan. Bought brand new in March 2012. 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. I have a 2005 . Another patient said the AC is just blowing warm air. Over time, the heater core can begin to rust or mineral deposits can form in these channels, blocking the flow of the coolant. Instead of changing the cabin air filter in Grand Caravan, it is often recommended to first clean the filter. 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 pressure values based on ambient temperatures differ depending on the type of the refrigerant. Hope this helps. Start the Dodge Caravan. I have a 2005 . 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. The Fora platform includes forum software by XenForo. dash and headlights RESET PROCEDURE With the ignition off, press the TRIP and RESET buttons at the same time you turn on the ignition. The water pump is the heart of the cooling system in Grand Caravan responsible for pumping coolant throughout the system and cooling the engine. Rear AC not working Rear AC not working 2016 Dodge Grand Caravan Asked by Visitor in Englewood, CO on September 05, 2021 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. I have a 1994 Dodge Caravan with 130,000 miles on it. 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. 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. A knocking noise from behind the dashboard could be an indicator of a bad blend door actuator in your Grand Caravan. A blown head gasket can cause the exhaust gases from the engine to enter the cooling system and plug the heater core. 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. #1. 1. Insufficient lubricant: The compressor in Grand Caravan needs lubrication to function properly and minimize mechanical wear by reducing friction. Home Troubleshooting Dodge Grand Caravan AC not cooling causes and diagnosis. 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. 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. How to Repair a Dodge Caravan Air Conditioning System Jonesy's 24.8K subscribers Subscribe 436 262K views 10 years ago #AmazonAssociate In this video we show you How To Repair a Dodge Caravan. In the event of a defect, the mechanic can directly initiate the repair. Grand Caravan Blacktop Package 3.6L. If the temperature doesn't change at all, the door may be stuck or broken. Determine if the blend door is moving. Over time, these dust particles can builds up on the fins and block the air flow through the evaporator, resulting in poor cooling. There is only one compressor so the freon must travel to the rear evaporator. If only hot air comes out of the air vents in your Grand Caravan, then the problem probably lies somewhere else. With the tool connected, turn on the ignition. Clogged heater core is one of the leading causes of heating not working in Dodge Grand Caravan. The air conditioning is a blessing, especially in hot temperatures. 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) Happened on the 2008 Dodge I drive for the company. A dirty filter causes the overall ventilation of the interior to deteriorate resulting in reduced cooling, heating and air flow. Check the owners manual of your vehicle or the fuse box cover to find the exact location of the AC fuses. Refrigerant leak in Grand Caravan can be caused by leaking O-ring seals, leaking condenser or evaporator core, or a cracked hose. 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.) Blend door actuator plays a role in controlling the temperature inside your Grand Caravan. If the condenser is dirty on your Grand Caravan, the simplest solution is to clean it. In that case driving at high speed should blow some cold air from the AC. A patient turn the temp control to warm because the air conditioner was too cold. Insufficient amount of refrigerant in the AC system is one of the leading causes of AC not blowing cold air in Grand Caravan. 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. Dirty evaporator can also significantly reduce AC cooling performance in Grand Caravan. 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. 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. This is . As a rule, there is no avoiding a change if the filter is dirty. 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. The compressor is the heart of the entire air conditioning system on Dodge Grand Caravan. My rear a/c is not working in my 2008 town and country, blowers work fine but only blow warm air. 90,000 miles. 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. It is a well known problem and any Caravan I have every seen has had this problem. It consists of moving parts that convert what is actually a gaseous coolant into liquid this is how your vehicle is cooled. However, if you dont turn on the air conditioning on your Grand Caravan for a long time, the parts will stick. 166. . 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. In rare cases, a fault in the climate control unit can cause the AC to stop cooling. This mode is useful for clearing fog from the windows. Press and hold the top one and bottom one. CarGurus has 52 nationwide Caravan listings starting at $3,499 . Remove the cap from the low pressure service port labelled L, and connect the AC recharge kit. You dont have to go to a workshop to check for a leaking head gasket in your Grand Caravan. 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Rear blower will not turn on. 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. 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 pressure is higher than the recommended pressure, let some refrigerant out preferably into a rag to avoid exposure. The front air con works greatany ideas would could be the problem and how to fix it! "AC unit" - what does that mean? Rear AC Block Kit Ford E-Series Van. Wisconsin certified. Insert the key into the ignition and turn to the "On" position. The Dodge Caravan AC is known for one thing.. Locate two rubber hoses that connect to the heater core through the firewall area. In this video we show you How To Repair a Dodge Caravan Air Conditioning System. 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. Just like with low refrigerant, the AC in Grand Caravan will blow warm air only if the AC system is overcharged with refrigerant. Dirty cabin air filter is the leading cause of weak heater airflow in Dodge Grand Caravan. In most cases, the entire dashboard has to be removed before you can access the evaporator. Dirty evaporator can cause weak airflow and reduce the heating performance in Grand Caravan. 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. Feel both the rubber lines going in and out of the heater core after the engine has warmed up. The refrigerant pressure is affected by the outside atmospheric temperature. Leak discovered. Amedee is online now Just have it refilled and you can drive with pleasant temperatures again. 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 on your Grand Caravan are: Cleaning the evaporator on Grand Caravan is not a simple task. Leaks in the head gasket can cause all sorts of problems in your Grand Caravan including poor heater performance. Seem to be moving and so forth. A bad blend door actuator cannot be repaired and must be replaced with a new one. 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. . 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. You need a pro that specializes in AC systems to troubleshoot what the issues are. 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. There are many reasons why your Dodge Grand Caravan AC is not cooling properly. Happened on the 2008 Dodge I drive for the company. It doesn't bother me. A family member purchased a new 2017 Grand Caravan SXT with the rear heat / ac. A knocking noise could be another indicator of a bad blend door actuator on your Grand Caravan, although its quite rare. Once the leak has been found, this must be closed again by replacing the respective component. 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. Unfortunately, this procedure does not allow you to get into the deeper layers of the filter. 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. Another patient said the AC is just blowing warm air. 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. The pollen filter, also known as the cabin filter or microfilter, is a central component of the ventilation system in your Dodge Grand Caravan. 3 offers from $32.73. Home Troubleshooting Dodge Grand Caravan heater not working causes and diagnosis. Although most of the dirt and other particles in the air are filtered by the cabin air filter, but some particles do escape and can cling to the fins of the blower cage. 2014 caravan. If you drive your vehicle in dusty or polluted environment, the filter can get dirty much sooner than manufacturers recommendation. To improve heating efficiency, it is recommended to switch on air recirculation mode. Step 1 Start the Dodge Caravan. It is also cryogenic and can cause severe frostbite when it comes in contact with the skin. A worn out or weakened blower motor can also produce abnormal sounds when in operation.
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