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. 8 people found this helpful. Since the heater core is usually slightly higher, the air will accumulate in there first. Most diagnostic devices then ask for some information about the vehicle. Dodge Caravan - Looking for a Used Caravan in your area? That means every time you start the van, climate controls go through self adjustment and check every blend door actuator and blend door. 2000 Grand Caravan - drivers side heat not working - Passenger and rear are fine 2 Answers. stop for 20 minutes and it work for 1 hour then quit. A knocking noise from behind the dashboard could be an indicator of a bad blend door actuator in your Grand Caravan. Cabin air filter captures most of the dirt or other airborne particles, but some escape and fall on to the evaporator. In addition to the vehicle make, model, and engine type, you usually also have to type in the Vehicle Identification Number (VIN). However, the high-pressure refrigerant pulls these chips back with it during operation and the next damage is inevitable. Your air conditioning system no longer cools properly? Shake the canister briefly and release the refrigerant into the system until the recommended pressure has been achieved. Very common problem & they were surprised there . 0%. I bought it used, but the air worked fine when I bought it in 2004. There is no prescribed time for changing cabin air filter, but most manufacturers recommend a change after 10,000-20,000 miles. 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. Therefore it is important to diagnose a failing water pump at early stages to avoid expensive repairs later on. 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. Jul 18, 2012. Dodge Grand Caravan heater not working - causes and diagnosis Rear controls stuck and blowing high heat no matter what happens in other zones. Resetting the system is something You can do from home but it takes a few steps. Anytime there is a problem with the temperature of the air conditioning system, it could be a problem with the blend door actuator. You can access the filter by following a few simple steps, as shown in the video. Remove the cap from the low pressure service port labelled L, and connect the AC recharge kit. 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 the coolant level is low, open the cap and pour some coolant into the tank until it is between minimum and maximum mark. The pressure values based on ambient temperatures differ depending on the type of the refrigerant. Determine if the blend door is moving. The sound will be most prominent for a few seconds when you turn on the air conditioning or adjust the temperature. For a better experience, please enable JavaScript in your browser before proceeding. Check your vehicles owners manual or look under the hood to find the type of the refrigerant your vehicle uses. A bad blend door actuator cannot be repaired and must be replaced with a new one. A blown head gasket can cause the exhaust gases from the engine to enter the cooling system and plug the heater core. 2016 Dodge Grand Caravan - Rear AC not working - RepairPal.com The hot coolant is pumped through the heater core located behind the dashboard. It is generally recommended to replace the cabin air filter every year at the start of the winter season. 2012 Dodge Grand Caravan A/C Not Working: 4 Complaints Your vehicles air conditioning system has an expansion vale or an orifice tube, depending on the model. You dont have to remove the heater core in your Grand Caravan to check if it is clogged. In addition to the normal loss, component defects are usually responsible for the escape of the refrigerant gas on Dodge Grand Caravan. Mechanic refilled with Freon to include dye so that he could detect a leak. RB The Mechanic assumes no liability for property damages or injury incurred as a result of any of the information contained in this video. 3.8 out of 5 stars. 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. To improve heating efficiency, it is recommended to switch on air recirculation mode. The vehicle has an air conditioning system (AC) to cool passengers during warm weather and hot drives. The vehicle was not repaired. The design of the heater core is similar to the radiator, it has narrow internal channels through which hot coolant flows. She currently resides in South Florida. Start by inspecting the condition of the cabin air filter on your Grand Caravan. 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. 10 offers from $23.29. 2008: Complicated rear blower problem. 2008 Grand Caravan. - JustAnswer There are many reasons why the heater in your Dodge Grand Caravan is not working properly. 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. 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. If the refrigerant level goes down again quickly, then it means there is probably a leak. front air stop blowing. Blend door actuator plays a role in controlling the temperature inside your Grand Caravan. 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. The Dodge Caravan AC is known for one thing.. Due to factors beyond the control of RB The Mechanic, it cannot guarantee against unauthorized modifications of this information. Leak discovered. 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. Both should be hot. This setting only guides air to your face and upper body, not your legs. The system is filled with forming gas (nitrogen with a little hydrogen) in the workshop. 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. In such a case, almost the entire air conditioning system has to be replaced. A/c Blowing Hot Air: I Am a Lady and Do Not Know Alot About - 2CarPros Excessive oil can also reduce the performance of the compressor and can cause it to fail prematurely. It consists of moving parts that convert what is actually a gaseous coolant into liquid this is how your vehicle is cooled. Specifically replace the condenser, evacuated, and recharge the AC system with R134 refrigerant on a 2002 Dodge Caravan minivan. 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. The sound is most prominent right after you start the vehicle. 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. 2019 Dodge Grand Caravan 35 Anniversary Model. 90,000 miles. 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. You must start the Dodge Caravan to reset the Dodge Caravan climate control. The most common causes for AC blowing hot air in Dodge Grand Caravan are low or overcharged refrigerant, compressor malfunction, dirty condenser or evaporator coils, faulty blend door actuator, defective evaporator temperature sensor, bad AC pressure sensor, and bad fuse or relay. A patient turn the temp control to warm because the air conditioner was too cold. However, if you dont turn on the air conditioning on your Grand Caravan for a long time, the parts will stick. I have a 1994 Dodge Caravan with 130,000 miles on it. There are flush kits available in the market that can help you do the job yourself. 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. ZIP: #1 Paul Reputation 2,020 #2 tenspeed Reputation 1,510 #3 Dan Ritz Reputation 1,480 Blend air doors can be a problem. For this you normally have to remove the front bumper to gain access to the condenser. Both of these are at risk of clogging due to contamination, for example due to metal shavings from a failing compressor. Check which type of refrigerant your vehicle uses. Bad Thermostat The job of your Caravan's thermostat is to regulate the temperature of the engine. Therefore, the filter performance will not increase significantly even after cleaning. In this video we show you How To Repair a Dodge Caravan Air Conditioning System. You dont have to go to a workshop to check for a leaking head gasket in your Grand Caravan. 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. 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. Start the Dodge Caravan. Insufficient amount of refrigerant is still the main cause of a non-functioning AC system. Locate the three leftmost buttons in the AC controls. Caravan fan and ac not working 1 Answer. There are many reasons why your Dodge Grand Caravan AC is not cooling properly. Recirculate air function not working | Dodge Charger Forum Find a better mechanic. Flushing is done by pushing water through the outlet hose of the heater core and draining the gunk from the inlet hose. Heat and air works great but if you say, switch to floor then it willbe floor and face. There are many reasons for poor heating performance in Grand Caravan, which are explained in this article. Unfortunately, this procedure does not allow you to get into the deeper layers of the filter. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. Unless the wiring issue is fixed, the fuse will blow again. If your Grand Caravan is losing coolant, that means there is a leak somewhere or it is getting burned up inside the engine. 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. 37 % of the time it's the. Below is a chart that will help with proper pressures. FAILING. A professional mechanic can swiftly diagnose the heating issue for you. 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. Dodge Grand Caravan Sport: 2003 Grand Caravan Sport 3.8l 128000km 2003 Grand Caravan Sport 3.8l 128000km with front- and rear-AC system. 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. Aug 25, 2008 2003 Dodge Caravan helpful Flashing lights! The wiring harness itself can go bad. In that case driving at high speed should blow some cold air from the AC. A dirty filter causes the overall ventilation of the interior to deteriorate resulting in reduced cooling and air flow. Effective March 26, 2020 and until further notice, UPS, FEDEX and USPS have suspended their Service Guarantee for all shipments from any origin to any destination. The videos are intended for information only. First You will need to start the van and make sure the mode in the vehicle is set to panel. 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 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.)
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