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The AC will start to calibrate and reset. Dirty evaporator can also be the reason for AC problems on your Dodge Grand Caravan. If one fails the test, you get the blinking rear defroster.Problem is a bit deeper because if you replace the failed blend door actuators with replacement parts (such as Dorman), the new actuator will work, but still fail the self adjustment test. Press and hold the top one and bottom one. Home Troubleshooting Dodge Grand Caravan heater not working causes and diagnosis. Both should be hot. There are two ports in the air conditioning system of Grand Caravan. An overcharged system not only affects cooling performance but can also damage the compressor and sometimes can cause a major leak. 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. fan is running and no air is moving. 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. Start the Dodge Caravan. There is only one compressor so the freon must travel to the rear evaporator. 166. ! A low refrigerant level in your Grand Caravan does not necessarily mean there is a leak. However, the high-pressure refrigerant pulls these chips back with it during operation and the next damage is inevitable. If fans arent coming on, you should have engine overheating issues. 1. Before you consider replacing the heater core in your Grand Caravan, it is recommended to flush the existing heater core. 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. 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. year to help you gain confidence about one of your largest purchase decisions. Automatic transmission. Warning: Wear gloves and safety glasses before recharging the AC to avoid accidental exposure to harmful chemicals in the refrigerant. The minivan was first manufactured in 1983 and remains in production as of 2011. 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. Below is a chart that will help with proper pressures. The dryer is often overlooked. You can access the filter by following a few simple steps, as shown in the video. . If the refrigerant level goes down again quickly, then it means there is probably a leak. 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. 18,300 miles. 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. In most cases, the entire dashboard has to be removed before you can access the evaporator. 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. If you turn it to heat, does the air get hotter? Many - Many - Many . FAILING. I have a 2005 . As a rule, there is no avoiding a change if the filter is dirty. You must start the Dodge Caravan to reset the Dodge Caravan climate control. What was replaced? Check all front HVAC fuses and relays M11 and J15 I believe, all good. Remove the glove compartment, unscrew the blower fan and then unplug the electricity to it. The videos are intended for information only. 2014 Dodge Grand Caravan SXT, 3.6, 1000 miles, the warm air works in the back all winter, the front has cold air, dont really understand why only half the air con works, is it too seperate systems, do I have to recharge somewhere in the back too. The water pump is the heart of the cooling system in Grand Caravan responsible for pumping coolant throughout the system and cooling the engine. 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. 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. Clearing the air from the heater core will not help until the head gasket has been replaced. In any case, it is advisable for laypersons to visit a workshop. 2016 Dodge Grand Caravan This problem may be covered under warranty. 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 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. Its purpose is to seal the combustion gases within the cylinders and to avoid coolant or engine oil leaking into the cylinders. If your Grand Caravan has push start/stop button, then its possible that your vehicle may not start due to weak key fob battery. ZIP: #1 Paul Reputation 2,020 #2 tenspeed Reputation 1,510 #3 Dan Ritz Reputation 1,480 A family member purchased a new 2017 Grand Caravan SXT with the rear heat / ac. The most common symptom of faulty blend door actuator on Dodge Grand Caravan is a slight clicking sound repeatedly coming from under the dashboard. "AC unit" - what does that mean? 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. 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. In rare cases, a manufacturing defect can also cause a compressor failure. If there is a problem with the temperature of the air conditioning system, it could be due to a bad blend door actuator. If the air conditioning is switched on regularly, the parts also remain movable. Most modern vehicles use R-134a refrigerant, but newer vehicles are increasingly using R-1234yf as a more environmentally friendly replacement. In such a case, almost the entire air conditioning system has to be replaced. Tried the above reset, didn't work. If you have front AC that is working fine then the rear should also work if the blower is working. A professional mechanic can swiftly diagnose the poor AC cooling issue for you. If the condenser is dirty on your Grand Caravan, the simplest solution is to clean it. Jul 13, 2012. Step 3 Locate the three leftmost buttons in the AC controls. Shake the canister briefly and release the refrigerant into the system until the recommended pressure has been achieved. Eric, Automotive Repair Shop. There are several causes for AC not blowing cold air in Grand Caravan, which we will go through in this article. The compressor is the heart of the entire air conditioning system on Dodge Grand Caravan. 3 offers from $32.73. 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. Did you ever come across a Problem like this? Seem to be moving and so forth. There is no prescribed time for changing cabin air filter, but most manufacturers recommend a change after 10,000-20,000 miles. Really? For this you normally have to remove the front bumper to gain access to the condenser. 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. 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. If the liquid changes color, then there is a leak in head gasket. Happened on the 2008 Dodge I drive for the company. 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 Happened on the 2008 Dodge I drive for the company. First You will need to start the van and make sure the mode in the vehicle is set to panel. 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. What 3 far left buttons? So, all of them must be inspected when diagnosing poor air flow. 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.) Therefore, it is recommended to do this in a workshop. One is labelled H for high-pressure and the other one is labelled L for low-pressure. Find a better mechanic. The sound will be most prominent for a few seconds when you turn on the air conditioning or adjust the temperature. front air stop blowing. Release the buttons once you see the light flash. 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 AC stopped working a while ago. 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. Rear A/C Block off Kit Air Conditioning Block Off Compatible with 2012-2016 Town/Country Dodge Caravan w/Dual Bolts. 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. When the heater is turned on and the AC turned off, the compressor does not turn on and the evaporator is not cooled. No information contained in this video shall create any expressed or implied warranty or guarantee of any particular result. The blend door actuator may require recalibration after replacement. Bad Thermostat The job of your Caravan's thermostat is to regulate the temperature of the engine. After cleaning, reconnect the terminals. Blend door actuator plays a role in controlling the air flow and temperature inside your Grand Caravan. Remove the blower fan in a Dodge Caravan by first disconnecting the battery, then waiting two minutes to disable the airbags. Most diagnostic devices then ask for some information about the vehicle. Show more. Check the owners manual of your vehicle or the fuse box cover to find the exact location of the AC fuses. Your vehicle may also consume more fuel than normal. 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. VehicleHistory.com Therefore, the filter performance will not increase significantly even after cleaning. If your Grand Caravan is losing coolant, that means there is a leak somewhere or it is getting burned up inside the engine. If this is the case, the only option is to replace the broken part. The heating system in Grand Caravan uses hot coolant or antifreeze from the engine block to heat the interior of the vehicle. Locate two rubber hoses that connect to the heater core through the firewall area. 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. 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) Rear controls stuck and blowing high heat no matter what happens in other zones. 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. 2000 Grand Caravan - drivers side heat not working - Passenger and rear are fine 2 Answers. If only hot air comes out of the air vents in your Grand Caravan, then the problem probably lies somewhere else. Cleaning the evaporator in Grand Caravan is not a simple task. A clogged or leaking condenser can also be the reason for air-conditioning not working properly on your Grand Caravan. 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. Larger leaks may already be heard or you can find them with a leak detection spray. 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. This setting only directs air to your face and upper body and not your feet. In any case, it is advisable for laypersons to visit a workshop. 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. However, if you dont turn on the air conditioning on your Grand Caravan for a long time, the parts will stick. The OBDII connector is usually located under the dashboard. Feel both the rubber lines going in and out of the heater core after the engine has warmed up. 1. The Dodge Caravan AC is known for one thing.. If you drive your vehicle in dusty or polluted environment, the filter can get dirty much sooner than manufacturers recommendation. Vehicle History's team of automotive experts brings you the most accurate and up-to-date used car information. 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Over time, these dust particles can builds up on the fins and block the air flow through the evaporator, resulting in poor cooling. There are 2 separate evaporators but only one compressor. SOURCE: Front Blower ok, missed the part about the rear ac working, the part that causes this is called the air temperature control blend door actuator motor, it is an electric motor driven gear drive that moves the plastic door inside the air ducking to mix or shut off the hot or cold air from the ac evaporator core or the heater core, you will need to replace it.