What was replaced? The pressure values based on ambient temperatures differ depending on the type of the refrigerant. Unfortunately, this procedure does not allow you to get into the deeper layers of the filter. Blend door actuator plays a role in controlling the temperature inside your Grand Caravan. There is no prescribed time for changing cabin air filter, but most manufacturers recommend a change after 10,000-20,000 miles. 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. Automatic transmission. This mode is useful for clearing fog from the windows. It is also cryogenic and can cause severe frostbite when it comes in contact with the skin. A dirty filter causes the overall ventilation of the interior to deteriorate resulting in reduced cooling, heating and air flow. 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 the air conditioning is switched on regularly, the parts also remain movable. 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 this you normally have to remove the front bumper to gain access to the condenser. A dirty filter causes the overall ventilation of the interior to deteriorate resulting in reduced cooling, heating and air flow. So, all of them must be inspected when diagnosing poor air flow. 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. Dodge Grand Caravan Sport: 2003 Grand Caravan Sport 3.8l 128000km 2003 Grand Caravan Sport 3.8l 128000km with front- and rear-AC system. Aug 25, 2008 2003 Dodge Caravan helpful Flashing lights! The Fora platform includes forum software by XenForo. 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. Instead of changing the cabin air filter in Grand Caravan, it is often recommended to first clean the filter. 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. #1. Since the heating system in Grand Caravan relies on the hot coolant from the engine to heat the interior, the heater will blow cold air until the engine reaches its normal operating temperature. Finding these mostly very small leaks is often not easy. 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. Keep in mind that the front AC will not cool the van as good as having a twin system. Over time, the heater core can begin to rust or mineral deposits can form in these channels, blocking the flow of the coolant. The best fix is to replace the rear evaporator and hope it goes more than 2 years before the problem happens again. It is now 90+ degrees where we live with high humidity. It doesn't bother me. 2016 Dodge Grand Caravan This problem may be covered under warranty. A maximum of the metal pipes can be rinsed here. 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. A family member purchased a new 2017 Grand Caravan SXT with the rear heat / ac. JavaScript is disabled. If you only install a new compressor here, another failure is inevitable, as the chips immediately destroy the new component. 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 condenser is dirty on your Grand Caravan, the simplest solution is to clean it. Insufficient lubricant: The compressor in Grand Caravan needs lubrication to function properly and minimize mechanical wear by reducing friction. Check all the relevant fuses and relays related to the air-conditioning system in 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. The rear HVAC housing has electric stepper motors driving the temperature blend door (cool/warm) and the air mode door (side/headliner vents). Turn on the AC and set it to the coldest setting, and the fan speed to maximum. The dryer is often overlooked. If only hot air comes out of the air vents in your Grand Caravan, then the problem probably lies somewhere else. I have a 2005 . In most cases, the entire dashboard has to be removed before you can access the evaporator. 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. Do you still sweat while driving your Dodge Grand Caravan? 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. Mechanic refilled with Freon to include dye so that he could detect a leak. The vehicle has an air conditioning system (AC) to cool passengers during warm weather and hot drives. Resetting the system is something You can do from home but it takes a few steps. Shake the canister briefly and release the refrigerant into the system until the recommended pressure has been achieved. The rear a/c works very, very well and they are very pleased with the a/c system. If one is hot and the other is cold, you have a plugged heater core. The most common reasons a Dodge Caravan ac isn't working are a refrigerant leak, an electrical climate control issue, or a problem with the air conditioning compressor. The AC light should illuminate and then flash. Leak discovered. 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 AC will start to calibrate and reset. This can have different causes. Check all front HVAC fuses and relays M11 and J15 I believe, all good. 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 you drive your vehicle in dusty or polluted environment, the filter can get dirty much sooner than manufacturers recommendation. Just have it refilled and you can drive with pleasant temperatures again. 5th Generation Chrysler Minivans: 2008-2020, 4th Generation Chrysler Minivans: 2001-2007, 3rd Generation Chrysler Minivans: 1996-2000, 2nd Generation Chrysler Minivans: 1991-1995. All do-it-yourself projects entail some risk. The pollen filter, also known as the cabin filter or microfilter, is a central component of the ventilation system in your Dodge Grand Caravan. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. 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. Step 1 Start the Dodge Caravan. Excessive oil can also reduce the performance of the compressor and can cause it to fail prematurely. Blower not working, no air condition or heat? year to help you gain confidence about one of your largest purchase decisions. A leaking condenser can lead to a loss of refrigerant and reduced cooling performance of the system. 2000 Grand Caravan - drivers side heat not working - Passenger and rear are fine 2 Answers. The two systems are joined, so if for example you lose freon, you will lose AC in the front and rear. Check the owners manual of your vehicle or the fuse box cover to find the exact location of the AC fuses. The rear works fine, AC cycles on fine, but no matter what I can't get any air to come out of the front. It also puts unnecessary strain on the entire AC system which negatively impacts your Grand Caravans fuel consumption. could the drain be plug and the evaporator is freezing up? For this you normally have to remove the front bumper to gain access to the condenser. The Dodge Caravan is a minivan manufactured and sold by the Dodge division of the Chrysler Group. This is an illustration of the normal repair that we see in the shop. Caravan fan and ac not working 1 Answer. The air conditioning is a blessing, especially in hot temperatures. If found dirty, clean it using a brush. 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. Ditto. As soon as the light starts to flash release the two buttons and the system will reset. 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. 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. 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. Remove the cap from the low pressure service port labelled L, and connect the AC recharge kit. 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. If your Grand Caravan is losing coolant, that means there is a leak somewhere or it is getting burned up inside the engine. In any case, it is advisable for laypersons to visit a workshop. . Christopher S July 30, 2020. If you turn it to heat, does the air get hotter? Before you consider replacing the heater core in your Grand Caravan, it is recommended to flush the existing heater core. 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. In case of severe contamination, multiple components may have to be replaced, including the condenser, the evaporator and the compressor. 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. 37 % of the time it's the. 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. Eric, Automotive Repair Shop. If the compressor fails, the AC will only blow warm air. 2023 Vehicle History Inc. All Rights Reserved. Clearing the air from the heater core will not help until the head gasket has been replaced. A patient turn the temp control to warm because the air conditioner was too cold. Check your vehicles owners manual or look under the hood to find the type of the refrigerant your vehicle uses. The worst damage, however, is a failure of the AC compressor when it eats itself due to insufficient lubrication or a production error, metal chips form, which are distributed throughout the Grand Caravans AC system. You need a pro that specializes in AC systems to troubleshoot what the issues are. Therefore it is recommended to do this at a workshop. Below is a chart that will help with proper pressures. By filling and properly bleeding the system the heat should come back. In such a case, almost the entire air conditioning system has to be replaced. Note: If the blower motor suddenly fails from one second to the next, you must first check whether a blown fuse is responsible for the failure. Remove the glove compartment, unscrew the blower fan and then unplug the electricity to it. does not research or authenticate any of the Answers provided. 7.5 pretty bad Typical Repair Cost: $1,500 Average Mileage: 43,900 miles Total Complaints: 4. However, if you turn the A/C completely Off, turn the ignition system off. Really? Follow the manufactures repair procedure and use appropriate safety procedures. Hope this helps. You must start the Dodge Caravan to reset the Dodge Caravan climate control. The compressor is the heart of the air conditioning system in Dodge Grand Caravan. It is a well known problem and any Caravan I have every seen has had this problem. 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. Flushing is done by pushing water through the outlet hose of the heater core and draining the gunk from the inlet hose. Both of these are at risk of clogging due to contamination, for example due to metal shavings from a failing compressor. Very common problem & they were surprised there . Therefore it is important to diagnose a failing water pump at early stages to avoid expensive repairs later on. Remove the blower motor, typically located under the passenger side dashboard, and inspect the condition of the cage. 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? 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. Dodge Grand Caravan. Check the system pressure. 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. Larger leaks may already be heard or you can find them with a leak detection spray. 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. Release the buttons once you see the light flash. The result is a defective compressor that can no longer be repaired. Leak was due. It is the sole responsibility of the viewer to assume this risk. If there is no air flow from the air vents in the dashboard when you turn on the heater in your Dodge Grand Caravan, it means the problem is related to the fan or blower motor function. The Dodge Caravan AC is known for one thing.. To improve heating efficiency, it is recommended to switch on air recirculation mode. The inside of the vehicle is developing a bad moldy smell. Your air conditioning system no longer cools properly? Home Troubleshooting Dodge Grand Caravan AC not cooling causes and diagnosis. Therefore, the filter performance will not increase significantly even after cleaning. Many - Many - Many . Cleaning the evaporator in Grand Caravan is not a simple task. First You will need to start the van and make sure the mode in the vehicle is set to panel. 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. Blend door actuator plays a role in controlling the air flow and temperature inside your Grand Caravan. The hot coolant is pumped through the heater core located behind the dashboard. Don't even try that "method" .it's a copy of a dumb directions of a dealership website word for word And it continues to say that the left buttons are for the washer fluid and the rear defroster or something like that . Start the Dodge Caravan. Mine is 2011 and has turn knobs for fan & temp. If the pressure is higher than the recommended pressure, let some refrigerant out preferably into a rag to avoid exposure. She currently resides in South Florida. 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. "AC unit" - what does that mean? 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. Check fan relay. 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Due to factors beyond the control of RB The Mechanic, it cannot guarantee against unauthorized modifications of this information. When the outside temperature drops too low, the heating performance may be reduced in Grand Caravan if the air conditioning system is set to outside air. 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. A knocking noise could be another indicator of a bad blend door actuator on your Grand Caravan, although its quite rare. A dirty filter causes the overall ventilation of the interior to deteriorate resulting in reduced heating and airflow. There are many reasons why your Dodge Grand Caravan AC is not cooling properly. 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. It's fake /inaccurate, What high and low buttons? FAILING. 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. There is only one small cable running to the blower fan which transmits the electricity. Checking coolant level in Grand Caravan is a fairly some job. A bad water pump will not only cause poor heating, but can also result in engine damage due to overheating. Did you ever come across a Problem like this? A clogged or leaking condenser can also be the reason for air-conditioning not working properly on your Grand Caravan. Leaks in the head gasket can cause all sorts of problems in your Grand Caravan including poor heater performance. A worn out or weakened blower motor can also produce abnormal sounds when in operation. 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.
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