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. Dirty cabin air filter is the leading cause of weak heater airflow in Dodge Grand Caravan. 2014 caravan. My 2003 Dodge Grand caravan blows hot air and my friends that was looking under the hood said that the fans arent coming on, not sure what fans but what do I do. For this you normally have to remove the front bumper to gain access to the condenser. 2019 Dodge Grand Caravan 35 Anniversary Model. Bad Thermostat The job of your Caravan's thermostat is to regulate the temperature of the engine. The cabin air filter captures most of the dirt or other airborne particles, but some particles escape and can get lodged on to the evaporator. 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 front air stop blowing. 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. The compressor is the heart of the air conditioning system in Dodge Grand Caravan. If the liquid changes color, then there is a leak in head gasket. A leaking condenser can lead to a loss of refrigerant and reduced cooling performance of the system. 1. Automatic transmission. 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 fans arent coming on, you should have engine overheating issues. Therefore it is important to diagnose a failing water pump at early stages to avoid expensive repairs later on. If the compressor fails, the AC will only blow warm air. Seem to be moving and so forth. The sound is most prominent right after you start the vehicle. If the pressure is higher than the recommended pressure, let some refrigerant out preferably into a rag to avoid exposure. 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. Mark helpful. A dirty filter causes the overall ventilation of the interior to deteriorate resulting in reduced cooling, heating and air flow. After two years, Braun left to pursue her entrepreneurial dreams. 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. 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. Ask your Dodge dealer. 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. Therefore, the filter performance will not increase significantly even after cleaning. 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. 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 the air conditioning is switched on regularly, the parts also remain movable. Rear ac in Dodge Grand Caravan not blowing. The OBDII connector is usually located under the dashboard. As a rule, there is no avoiding a change if the filter is dirty. 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. Maybe only the condenser side fan is not working. Unfortunately, this procedure does not allow you to get into the deeper layers of the filter. The best fix is to replace the rear evaporator and hope it goes more than 2 years before the problem happens again. Instead of changing the cabin air filter in Grand Caravan, it is often recommended to first clean the filter. I have a 2005 . Before you consider replacing the heater core in your Grand Caravan, it is recommended to flush the existing heater core. 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. There is no fixed time for replacing the cabin air filter, but most manufacturers recommend a change after 10,000-20,000 miles. VehicleHistory.com Dont worry, there is no risk of suffocation, as the air recirculation mode still allows up to approximately 10 percent of the air coming from the air vents to be fresh air from the outside. 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. Locate the three leftmost buttons in the AC controls. 3.8 out of 5 stars. 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. Remove the cap from the low pressure service port labelled L, and connect the AC recharge kit. Excessive oil can also reduce the performance of the compressor and can cause it to fail prematurely. There are many reasons why air conditioning may not be working properly on your Dodge Grand Caravan. Turn the Mode Control dial to "Panel." JavaScript is disabled. 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. Remove the glove compartment, unscrew the blower fan and then unplug the electricity to it. This setting only directs air to your face and upper body and not your feet. Switch the Mode Control knob to "Panel." Its possible the fan is dead, and you may have to replace it. For a better experience, please enable JavaScript in your browser before proceeding. Over time, the heater core can begin to rust or mineral deposits can form in these channels, blocking the flow of the coolant. In case of severe contamination, multiple components may have to be replaced, including the condenser, the evaporator and the compressor. Due to factors beyond the control of RB The Mechanic, no information contained in this video shall create any express or implied warranty or guarantee of any particular result. In the AC settings, find the three leftmost buttons. However, if you dont turn on the air conditioning on your Grand Caravan for a long time, the parts will stick. Home Troubleshooting Dodge Grand Caravan AC not working causes and how to fix it. It will be anywhere from $1000 tp $1500 to have a garage do the work. The cabin air filter captures most of the dirt or other airborne particles, but some particles escape and can get lodged on to the evaporator. 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. The compressor is the heart of the entire air conditioning system on Dodge Grand Caravan. Bought brand new in March 2012. 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 front air con works greatany ideas would could be the problem and how to fix it! 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. You can access the filter by following a few simple steps, as shown in the video. stop for 20 minutes and it work for 1 hour then quit. Had front blower fan not working and rear was. The system is filled with forming gas (nitrogen with a little hydrogen) in the workshop. But if the weather is too cold, the engine may never reach its optimal operating temperature with a stuck open thermostat. Anytime there is a problem with the temperature of the air conditioning system, it could be a problem with the blend door actuator. 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. The AC light should illuminate and then flash. Clogged heater core is one of the leading causes of heating not working in Dodge Grand Caravan. In that case driving at high speed should blow some cold air from the AC. Leak discovered. 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. A maximum of the metal pipes can be rinsed here. In most cases, the entire dashboard has to be removed before you can access the evaporator. A defective sealing ring, a worn line or a condenser that has been damaged by a stone chip are the most common causes. The sound will be most prominent for a few seconds when you turn on the air conditioning or adjust the temperature. Check the owners manual of your vehicle or the fuse box cover to find the exact location of the AC fuses. Eric, Automotive Repair Shop. There are many reasons why your Dodge Grand Caravan AC is not cooling properly. Blend door actuator plays a role in controlling the air flow and temperature inside 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. ( 2008 | 2009 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | SE | CVP | AMP | SXT | LIMITED | CREW | VALUE PACKAGE | EXPRESS ).This is just the explanation video. 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. However, a bad electrical connector or broken wire, or a defect in the climate control unit can also cause the blower motor to stop working. 24,855 miles. An overcharged system not only affects cooling performance but can also damage the compressor and sometimes can cause a major leak. A patient turn the temp control to warm because the air conditioner was too cold. Dirty evaporator can also significantly reduce AC cooling performance in Grand Caravan. Low coolant level or air in the heater core can sometimes cause sloshing sound from behind the dashboard when the engine is running. 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. 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. 3 offers from $32.73. Cleaning the evaporator in Grand Caravan is not a simple task. Over last two years the front dash vents gradually lost all read more Chris Shop Foreman 8,839 satisfied customers 2001 dodge grand caravan sport: expansion valves..ac compressor..kick Dodge Grand Caravan Sport: 2003 Grand Caravan Sport 3.8l 128000km 2003 Grand Caravan Sport 3.8l 128000km with front- and rear-AC system. In rare cases, a fault in the climate control unit can cause the AC to stop cooling. It is a filter! 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. This vehicle was purchased in July 2014 and as of July 2015, the REAR Air Conditioning unit has stopped working. 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) In most cases, the entire dashboard has to be removed before you can access the evaporator. 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. 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. Once the leak has been found, this must be closed again by replacing the respective component. 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. This is an illustration of the normal repair that we see in the shop. Do you still sweat while driving your Dodge Grand Caravan? This information is typically located under the hood and/or in the owners manual. Automatic transmission. The vehicle has an air conditioning system (AC) to cool passengers during warm weather and hot drives. 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. The heating system in Grand Caravan uses hot coolant or antifreeze from the engine block to heat the interior of the vehicle. The rear HVAC housing has electric stepper motors driving the temperature blend door (cool/warm) and the air mode door (side/headliner vents). Step 1 Start the Dodge Caravan. FAILING. Below is a chart that will help with proper pressures. #1. This would require a scan tool to confirm correct 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. To improve heating efficiency, it is recommended to switch on air recirculation mode. Its purpose is to seal the combustion gases within the cylinders and to avoid coolant or engine oil leaking into the cylinders. It is now 90+ degrees where we live with high humidity. Climate control module is the brain of the air-conditioning system in your Dodge Grand Caravan, responsible for controlling all the components in the system. When the heater is turned on and the AC turned off, the compressor does not turn on and the evaporator is not cooled. The leak can be diagnosed by injecting small amount of fluorescent dye into the AC system. If the condenser is dirty on your Grand Caravan, the simplest solution is to clean it. If you drive your vehicle in dusty or polluted environment, the filter can get dirty much sooner than manufacturers recommendation. 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. Happened on the 2008 Dodge I drive for the company. 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. Weak key fob battery. A clogged or leaking condenser can also be the reason for air-conditioning not working properly on your Grand Caravan. For us shade tree mechanics and cheap people the best fix is to just block the rear ac off. Sometimes changing the temperature can temporarily stop the sound. This mode is useful for clearing fog from the windows. Refrigerant leak in Grand Caravan can be caused by leaking O-ring seals, leaking condenser or evaporator core, or a cracked hose. The blend door actuator may require recalibration after replacement. Clearing the air from the heater core will not help until the head gasket has been replaced. The blower motor is the central component of the air conditioning system in Grand Caravan, responsible for blowing cold air through the AC vents. 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