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. 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. The Dodge Caravan AC is known for one thing.. 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. So, all of them must be inspected when diagnosing poor airflow. This can have different causes. Insert the key into the ignition and turn to the "On" position. Jul 13, 2012. Bad Thermostat The job of your Caravan's thermostat is to regulate the temperature of the engine. Rear controls stuck and blowing high heat no matter what happens in other zones. A patient turn the temp control to warm because the air conditioner was too cold. Thanks for your support! Two compressors for a rear air problem? 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. Dirty evaporator can also be the reason for AC problems on your Dodge Grand Caravan. Check the owners manual of your vehicle or the fuse box cover to find the exact location of the AC fuses. The leak can be diagnosed by injecting small amount of fluorescent dye into the AC system. 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. The sound will be most prominent for a few seconds when you turn on the air conditioning or adjust the temperature. Doing a DIY diesel swap? 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. An overcharged system not only affects cooling performance but can also damage the compressor and sometimes can cause a major leak. Over time, these dust particles can builds up on the fins and block the air flow through the evaporator, resulting in poor cooling. A clogged or leaking condenser can also be the reason for air-conditioning not working properly on your Grand Caravan. Dodge Grand Caravan won't start - causes and how to fix it Clearing the air from the heater core will not help until the head gasket has been replaced. 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. The rear a/c works very, very well and they are very pleased with the a/c system. By filling and properly bleeding the system the heat should come back. How to Reset an Air Conditioner on a Dodge Caravan Check fan relay. The air conditioning is a blessing, especially in hot temperatures. Remove the blower fan in a Dodge Caravan by first disconnecting the battery, then waiting two minutes to disable the airbags. In case of contamination, you may have to flush out the contaminants from the AC system of your Grand Caravan, including the condenser and the evaporator, before putting in the new part. 2000 Grand Caravan - drivers side heat not working - Passenger and rear are fine 2 Answers. Below is a chart that will help with proper pressures. 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. Home Troubleshooting Dodge Grand Caravan heater not working causes and diagnosis. What was replaced? With the tool connected, turn on the ignition. I have a 1994 Dodge Caravan with 130,000 miles on it. Remove the blower motor, typically located under the passenger side dashboard, and inspect the condition of the cage. If the blend door actuator fails to fully open the blend door towards the heater core, it will result in poor heating performance. tried different settings, defrost, floor and turn the heat on. I have a 2005 . If the fuse is blown, replace it with a new one with the specified amp rating. Symptoms of a Bad or Failing Blower Motor Relay - YourMechanic 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. There are many reasons why air conditioning may not be working properly on your Dodge Grand Caravan. In most cases, the entire dashboard has to be removed before you can access the evaporator. 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. 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. 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. "AC unit" - what does that mean? 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. 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. 1. As soon as the light starts to flash release the two buttons and the system will reset. Its purpose is to seal the combustion gases within the cylinders and to avoid coolant or engine oil leaking into the cylinders. I bought it used, but the air worked fine when I bought it in 2004. 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. I have a 2005 . Find a better mechanic. 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. It consists of moving parts that convert what is actually a gaseous coolant into liquid this is how your vehicle is cooled. When looking for the reason, you should always start with the most obvious cause, insufficient amount of refrigerant. 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. 2000 Grand Caravan - drivers side heat not working - Passenger and rear are fine 2 Answers. does not research or authenticate any of the Answers provided. Once again I don't have rear climate controls in this van. 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. 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. There are 2 separate evaporators but only one compressor. Excessive oil can also reduce the performance of the compressor and can cause it to fail prematurely. The rear HVAC housing has electric stepper motors driving the temperature blend door (cool/warm) and the air mode door (side/headliner vents). If the liquid changes color, then there is a leak in head gasket. Ask your Dodge dealer. A broken compressor is usually irreparable. To complete the reset, press the top button. All do-it-yourself projects entail some risk. . Check all the relevant fuses and relays related to the air-conditioning system in your Grand Caravan. Due to the complexity of the replacement job, it is not recommended as a DIY project. Next You will need to press the highest and lowest buttons on the AC control panel until the AC light begins to flash. To begin troubleshooting, you must first connect the diagnostic tool to your Grand Caravan. Home Troubleshooting Dodge Grand Caravan AC not working causes and how to fix it. Due to factors beyond the control of RB The Mechanic, it cannot guarantee against unauthorized modifications of this information. Happened on the 2008 Dodge I drive for the company. The head gasket is responsible for providing the seal between the engine block and cylinder heads. 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. Instead of changing the cabin air filter in Grand Caravan, it is often recommended to first clean the filter. The air flow from the vents is choppy and not smooth. Insufficient amount of refrigerant in the AC system is one of the leading causes of AC not blowing cold air in Grand Caravan. You need a pro that specializes in AC systems to troubleshoot what the issues are. The front air con works greatany ideas would could be the problem and how to fix it! Over time, the heater core can begin to rust or mineral deposits can form in these channels, blocking the flow of the coolant. It is the sole responsibility of the viewer to assume this risk. Dodge Grand Caravan - REAR DEFROSTER BLINKING? NO HEAT OR A/C? 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? ChryslerMinivan.net is the best forum for Chrysler Town and Country owners to discuss mileage, price, problems, towing and more. If you dont service the AC system in your Grand Caravan for a long time, the refrigerant level will eventually get so low that the system loses its cooling capacity. Dodge Grand Caravan AC not working - causes and how to fix it The pressure values based on ambient temperatures differ depending on the type of the refrigerant. Since the heater core is usually slightly higher, the air will accumulate in there first. VehicleHistory.com Your vehicle may also consume more fuel than normal. Insert the key into the ignition and turn to the "On" position. What these are and what you can do about it, we explain in this article. 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. Very common problem & they were surprised there . stop for 20 minutes and it work for 1 hour then quit. A dirty filter causes the overall ventilation of the interior to deteriorate resulting in reduced cooling and air flow. Air should blow out of the vents at different intervals during the reset. Warning: Wear gloves and safety glasses before recharging the AC to avoid accidental exposure to harmful chemicals in the refrigerant. 3 offers from $32.73. Join now! The AC light should illuminate and then flash. The excess oil may pool in various places of the AC system and can coat the inner walls of the evaporator and condenser, diminishing their ability to absorb or dissipate heat, consequently reducing the overall cooling performance. For a better experience, please enable JavaScript in your browser before proceeding. Most modern vehicles use R-134a refrigerant, but newer vehicles are increasingly using R-1234yf as a more environmentally friendly replacement. 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. Hope this helps. The manufacturer was not notified of the failure. If you have front AC that is working fine then the rear should also work if the blower is working. There are test kits available in the market in which you just have to insert a tube filled with colored liquid in the radiator (in place of the radiator cap), and then start the engine. There are many reasons for poor heating performance in Grand Caravan, which are explained in this article. Mark helpful. Wisconsin certified. 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. For us shade tree mechanics and cheap people the best fix is to just block the rear ac off. The vehicle replaced a 2013 Chevrolet Equinox. 1. 24,855 miles. Blend door actuator plays a role in controlling the temperature inside your Grand Caravan. As a rule, there is no avoiding a change if the filter is dirty. You dont have to remove the heater core in your Grand Caravan to check if it is clogged. 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. Check which type of refrigerant your vehicle uses. The vehicle has an air conditioning system (AC) to cool passengers during warm weather and hot drives. ZIP: #1 Paul Reputation 2,020 #2 tenspeed Reputation 1,510 #3 Dan Ritz Reputation 1,480 The sound is most prominent right after you start the vehicle. 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. Rear A/C not working properly - 2CarPros It also puts unnecessary strain on the entire AC system which negatively impacts the fuel consumption. Mine is 2011 and has turn knobs for fan & temp. Dodge Grand Caravan Questions - Ac not working on passenger side - CarGurus If the refrigerant level goes down again quickly, it means there is probably a leak. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. Dodge Caravan AC Not Cooling: Why and How to Fix Turn on the AC and set it to the coldest setting, and the fan speed to maximum. This mode is useful for clearing fog from the windows. The pollen filter, also known as the cabin filter or microfilter, is a central component of the ventilation system in your Dodge Grand Caravan. 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. 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. 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. 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. #1. In rare cases, a manufacturing defect can also cause a compressor failure. The blend door actuator may require recalibration after replacement. 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. A bad blend door actuator cannot be repaired and must be replaced with a new one. A leaking condenser can lead to a loss of refrigerant and reduced cooling performance of the system. My Dodge grand Caravan rear AC is blowing hot air while my Switch the Mode Control knob to "Panel." It's an obvious rear mode door or switchology problem as stated. A knocking noise could be another indicator of a bad blend door actuator on your Grand Caravan, although its quite rare. Step 1 Start the Dodge Caravan. Resetting the system is something You can do from home but it takes a few steps. In the event of a defect, the mechanic can directly initiate the repair. Rear ac in Dodge Grand Caravan not blowing. 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. 2016 Dodge Grand Caravan - Rear AC not working - RepairPal.com A maximum of the metal pipes can be rinsed here. There are two ports in the air conditioning system of Grand Caravan. 2012 Dodge Grand Caravan A/C Not Working: 4 Complaints Did you ever come across a Problem like this? 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. 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. Keep in mind that the front AC will not cool the van as good as having a twin system. Where are the 3 buttons to hold for reset? Grand Caravan Crew 3.6L V6 Automatic transmission 46,300 miles AC stopped blowing cold. The Dodge Caravan AC is known for one thing.. The heating system in Grand Caravan uses hot coolant or antifreeze from the engine block to heat the interior of the vehicle.