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. After two years, Braun left to pursue her entrepreneurial dreams. With the tool connected, turn on the ignition. Jul 18, 2012. Thanks for your support! This gives you a fresh start for the winter, improves defroster performance, and reduces chances of mold or mildew growth. 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. Home Troubleshooting Dodge Grand Caravan heater not working causes and diagnosis. Dodge Grand Caravan Sport: 2003 Grand Caravan Sport 3.8l 128000km 2003 Grand Caravan Sport 3.8l 128000km with front- and rear-AC system. Hey its possible Just on the right screen corner where it says rear climate ,Tap it and you'll find the unlock and lock air climate in rear so you can switch it back on or off whichever you like. The most common symptom of faulty blend door actuator on Dodge Grand Caravan is a slight clicking sound repeatedly coming from under the dashboard. The Questions and Answers on this page are the statements and opinions of their respective authors and not VehicleHistory.com. Locate the three leftmost buttons in the AC controls. The only thing that helps is swapping with a new one. If your Grand Caravan has push start/stop button, then its possible that your vehicle may not start due to weak key fob battery. A patient turn the temp control to warm because the air conditioner was too cold. 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 sound is most prominent right after you start the vehicle. Place the key into the ignition and switch it to the "On" position. It consists of moving parts that convert what is actually a gaseous coolant into liquid this is how your vehicle is cooled. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. Blend door actuator plays a role in controlling the temperature inside your Grand Caravan. The pollen filter, also known as the cabin filter or microfilter, is a central component of the ventilation system in your Dodge Grand Caravan. The vehicle was not repaired. It is a filter! If it is blown, replacing the fuse will only solve the problem for a very limited period of time. 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. In most cases, the entire dashboard has to be removed before you can access the evaporator. 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. 3.8 out of 5 stars. In addition to the normal loss, component defects are usually responsible for the escape of the refrigerant gas on Dodge Grand Caravan. 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. . Larger leaks may already be heard or you can find them with a leak detection spray. 1. 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. 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. Instead of changing the cabin air filter in Grand Caravan, it is often recommended to first clean the filter. 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? 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. 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. Tried all combinations of power on, rotating the know etc. Low coolant level or air in the cooling system can cause the heater to stop working properly in Grand Caravan. The Town & Country and Grand Caravan mini vans are susceptible to rear A/C issues, especially in the rust belt. Insert the key into the ignition and turn to the "On" position. RB The Mechanic recommends to follow safe practices when working with power tools, automotive lifts, lifting tools, jack stands, electrical equipment, chemicals, or any other tools or equipment seen or implied in this video. There is only one small cable running to the blower fan which transmits the electricity. It also puts unnecessary strain on the entire AC system which negatively impacts the fuel consumption. Sometimes when a thermostat goes bad, it stays stuck open. This can have different causes. Cleaning the evaporator in Grand Caravan is not a simple task. The Dodge Caravan AC is known for one thing.. In any case, it is advisable for laypersons to visit a workshop. 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. The blend door actuator may require recalibration after replacement. Aug 25, 2008 2003 Dodge Caravan helpful Flashing lights! The air conditioning is a blessing, especially in hot temperatures. 2016 Dodge Grand Caravan This problem may be covered under warranty. Step 3 Locate the three leftmost buttons in the AC controls. To begin troubleshooting, you must first connect the diagnostic tool to your Grand Caravan. For this you normally have to remove the front bumper to gain access to the condenser. Dirty cabin air filter is the leading cause of weak heater airflow in Dodge Grand Caravan. You dont have to remove the heater core in your Grand Caravan to check if it is clogged. 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 heater may stop working in Dodge Grand Caravan due to low coolant level or air in the cooling system, clogged heater core, bad thermostat, faulty blend door actuator, bad water pump, dirty cabin air filter, bad blower motor, or HVAC control unit malfunction. 56,823 Satisfied Customers 20+ yrs. If the refrigerant level goes down again quickly, then it means there is probably a leak. If the condenser is dirty on your Grand Caravan, the simplest solution is to clean it. fan is running and no air is moving. Dirty evaporator can cause weak airflow and reduce the heating performance in Grand Caravan. 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. 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. Excessive oil can also reduce the performance of the compressor and can cause it to fail prematurely. Jun 14, 2017. ! The compressor is the heart of the air conditioning system in Dodge Grand Caravan. The wiring harness itself can go bad. 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. 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. If you only install a new compressor here, another failure is inevitable, as the chips immediately destroy the new component. If one is hot and the other is cold, you have a plugged heater core. 3 offers from $32.73. 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. Release the buttons once you see the light flash. Caravan fan and ac not working 1 Answer. The Dodge Caravan AC is known for one thing.. If you are only topping off the refrigerant in your Dodge Grand Caravan with off-the-shelf refrigerant recharge cans and not repairing the leak, you may have flooded with AC system with oil since these cans often contains added oil. If this is the case, the only option is to replace the broken part. Eric is online now Continue Related Dodge Questions My Dodge grand Caravan rear AC is blowing hot air while my The OBDII connector is usually located under the dashboard. 0%. Warning: Wear gloves and safety glasses before recharging the AC to avoid accidental exposure to harmful chemicals in the refrigerant. It is also cryogenic and can cause severe frostbite when it comes in contact with the skin. Rear A/C Block off Kit Air Conditioning Block Off Compatible with 2012-2016 Town/Country Dodge Caravan w/Dual Bolts. Once you start the car back up the A/C will still be off. It is generally recommended to replace the cabin air filter every year at the start of the winter season. The compressor is the heart of the entire air conditioning system on Dodge Grand Caravan. A low refrigerant level in your Grand Caravan does not necessarily mean there is a leak. tried different settings, defrost, floor and turn the heat on. My rear a/c is not working in my 2008 town and country, blowers work fine but only blow warm air. Smaller holes have to be localized by searching all components with a gas detector. It's an obvious rear mode door or switchology problem as stated. The heating system in Grand Caravan uses hot coolant or antifreeze from the engine block to heat the interior of the vehicle. Unless the wiring issue is fixed, the fuse will blow again. A dirty filter causes the overall ventilation of the interior to deteriorate resulting in reduced heating and airflow. I bought it used, but the air worked fine when I bought it in 2004. I have a 2005 . For a better experience, please enable JavaScript in your browser before proceeding. 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. A patient turn the temp control to warm because the air conditioner was too cold. It will be anywhere from $1000 tp $1500 to have a garage do the work. There are flush kits available in the market that can help you do the job yourself. This hinders the condensers ability to release heat as less air passes through the mesh, which results in poor cooling in the interior. Grand Caravan Crew 3.6L V6 Automatic transmission 46,300 miles AC stopped blowing cold. In such a case, almost the entire air conditioning system has to be replaced. 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. A family member purchased a new 2017 Grand Caravan SXT with the rear heat / ac. 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. If the compressor fails, the AC will only blow warm air. 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 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. Blend air doors can be a problem. Heat and air works great but if you say, switch to floor then it willbe floor and face. 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. The system is filled with forming gas (nitrogen with a little hydrogen) in the workshop. 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. Most diagnostic devices then ask for some information about the vehicle. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. Its possible the fan is dead, and you may have to replace it. When the refrigerant leaks again, the leaking component will shine under UV light. The vehicle replaced a 2013 Chevrolet Equinox. Clogged heater core is one of the leading causes of heating not working in Dodge Grand Caravan. If there is a problem with the temperature of the air conditioning system, it could be due to a bad blend door actuator. The refrigerant pressure is affected by the outside atmospheric temperature. ZIP: #1 Paul Reputation 2,020 #2 tenspeed Reputation 1,510 #3 Dan Ritz Reputation 1,480 Therefore, the filter performance will not increase significantly even after cleaning. The heater in Dodge Grand Caravan ensures comfortable temperature in the passenger compartment when the weather is chilly. If the condenser is dirty on your Grand Caravan, the simplest solution is to clean it. 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. Seem to be moving and so forth. Refrigerant leak in Grand Caravan can be caused by leaking O-ring seals, leaking condenser or evaporator core, or a cracked hose. 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. Due to the complexity of the replacement job, it is not recommended as a DIY project. Keep in mind that the front AC will not cool the van as good as having a twin system. To complete the reset, press the top button. This is mostly common in older vehicles. Blower not. 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. The rear HVAC housing has electric stepper motors driving the temperature blend door (cool/warm) and the air mode door (side/headliner vents). Thanks Did you ever fix it my van has the same problem but all my blend doors ect.. 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 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. Just make sure the temp control on the upper console facing the rear seats is not turn to warm. Checking coolant level in Grand Caravan is a fairly some job. 2010 T&C Touring, 3.8L, 6 Speed 62TE Trans. The pressure values based on ambient temperatures differ depending on the type of the refrigerant. 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. 2019 Dodge Grand Caravan 35 Anniversary Model. "AC unit" - what does that mean? Just have it refilled and you can drive with pleasant temperatures again. There can also be a refrigerant leak in the evaporator, in that case the evaporator will have to be replaced. Blend door actuator plays a role in controlling the temperature inside your Grand Caravan. 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. 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. Mine is 2011 and has turn knobs for fan & temp. 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. 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. Less common causes are clogged expansion valve or orifice tube, overcharged oil, faulty blend door actuator, or a defect in the climate control unit. It is important that you enter this 100% correctly, otherwise the result of the search may be inaccurate. Both should be hot. 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 AC to stop cooling. This is . A bad blend door actuator usually cannot be repaired and must be replaced with a new one. 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. All do-it-yourself projects entail some risk. It's fake /inaccurate, What high and low buttons? 18,300 miles. You just have to locate the coolant overflow reservoir and inspect the level of coolant in it. There are many reasons why the heater in your Dodge Grand Caravan is not working properly. We research hundreds of models each You dont have to go to a workshop to check for a leaking head gasket in your Grand Caravan. 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. A knocking noise could be another indicator of a bad blend door actuator on your Grand Caravan, although its quite rare. The sound will be most prominent for a few seconds when you turn on the air conditioning or adjust the temperature. 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.
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