I've got an A/C problem that I could use some help with - car is a '93. From there, the refrigerant will flow through a tube where it turns into a gas. It worked and held vacuum. Before starting this workflow, make sure you disconnect the battery to ensure safety. Rear ac blows air but not cool air. The condenser and the cooling fan also work in synergy within the air conditioning system. If one side of your car's AC is not working, the car is most likely running on a low refrigerant level. Images (Click to enlarge). Regarding the rear heat and AC. Rear Air Conditioner Not Working: No Air Is Coming Out of the Rear. What should I check? However, if you're not sure of doing a perfect job, kindly contact an expert auto technician. If you are a DIYer, kindly get a good sealant at a car accessories or auto parts shop across the street. That is the white vacuum hose that controls the rear two actuators I mentioned above.
Firstly, take out time to inspect your car's AC vents on the dashboard. If it starts, we bet the blower motor gets defective. When I held my thumb over the opening to the black hose, the front vents worked properly again. Of course, a blown fuse can cause a car's AC not to work.
They recharged ac system and seems all is good. The same compressor, drier, freon (134a in your case), and condenser are used for both frnt and rear. It is vacuum actuated with a thin white vacuum line. However, if the front car's AC is not working, but the back is, there should be a critical analysis of the issue. The operations can be altered by a simple electrical fault, especially a blown fuse. Car ac not blowing out cold air. It seems as if the rear refrigerant lines are somehow blocked off from the rest of the system, but in pouring through the service manual I found, I can't find anything that would explain how that might be.
Assuming that the hot water valve, setting motor, flap valves and control. Your central AC is running but not blower air because of a broken AC blower belt or the defective blower motor. The connections going to the actuators were like new, and very tight. They regulate the vent door and provide the desired temperature you need by mixing the hot air with the cold air. I presume it is good. It's not rocket science to replace a blower motor, even a beginner can do it. The AC vents are designed with open spaces to allow cold air to flow through into the car. Can one leak but not the other? Rear A/C not cooling. Whether the blower motor is at fault or not, you can identify it by inspecting it. Wipe it dry using a towel. The fuse is a very sensitive component in the HVAC system. It will only cost a few bucks.
Faulty fuse or relay. As you continue reading, we will discuss them with you individually, so you can understand them more. I had the freon checked and they said it was good. A defective blower motor resistor can also be the culprit behind a non-functional front AC of your car. Repair/replace faulty cooling fan. If you're a DIYer, replacing this component can be pretty easy. I'm doing the GM equivalent right now to my wife's Enclave, replacing the expansion valve, cleaning orifice tubes, and replacing the dessicant. I started her up and pulled a vacuum line near the intake manifold, and found that I had 17 inches of vacuum at idle. Failed blend door actuators, defective blower motor resistor, and bad blower motors are the main culprits that provide hot air on the driver side but cold air on the back or passenger side. Rear ac not blowing cold air intermittently. Yes, a dirty air filter can alter your car's air conditioner from cooling properly. Often, the compressor has a sealed bearing which can wear and tear especially if it lacks lubricant. Yes, but not what you might think.
That hose gets its vacuum from the main black vacuum line that feeds the front vent directional control switch and all of its actuators. However, if your car has already malfunctioned the compressor, replace it with a new one. If there is dust or dirt, get water and detergent and mix in a bowl. Rear ac not blowing cold air france. The cost of fixing the problem with a car's HVAC system where the front AC is not working is estimated to be around $100 – $900.
However, if you have a blown fuse, ensure to check it out with a working voltmeter. Why is my central AC running but not blowing air? However, if you don't feel comfortable doing this task, call a mechanic to do it for you. There are four screws that holds the switch panel in place.
If you turn on the car's air conditioner, turn the temperature down, and the air does not seem to cool as it used to be, this can be an early sign of something wrong with the compressor. You will most probably see lots of bubbles, a sign that the gas charge is a little low. If any of the problems arise, the first step you need to take is to diagnose. Hi, I've got a 2011 T5. It is responsible for air blowing through the vents. Rear A/C not as cold. Once you ascertain the exact reason why your Dodge Durango's front AC is not working but back is, then you can proceed to fix the problem. As we have mentioned, the compressor works by compressing the refrigerant. GM doesnt use a drier like Dr T, its a replaceable insert on the side of the main condenser. What Does A Compressor Do? You will save $$$$$.
Set at the lowest temp (18C) which should be cold, it blows ambient. As a result, you will get the cold air from the back AC- not from the front. It has always been extremely cold in past. Checked all valves and they all function properly. Noticed today it was blowing warm air no matter the setting. Therefore, if you have a faulty cooling fan, it will impact the condenser negatively and result in some sort of HVAC system malfunction. AC blows cold in the back but not in the front! Please note the pdf file attached. It is important for you to properly diagnose the actual cause of the problem before acting.
The refrigerant is designed to work in synergy with the compressor within the air conditioning system. If your car's back air conditioner is working and the front fails to work, you most likely have a blocked front AC vent. No wind came out from those roof vents, does anyone know what happened? If the cooling fan is the main problem, get a replacement, so it will not become a big problem in the future. If you are lucky, you've lost some of the charge in the system over the winter, and a pound or two of gas is all that's required. When this happens, you may notice a substantial reduction in the cooling effect of the air being blown. If any of these are the case, the system can still show a full charge, but not be operating efficiently. The cooling fan and the condenser work hand in hand within the AC system. So, if your car's AC is not cooling as expected, ensure to check the air filter, among other related components. Probably the dealership was in a rush to get us the car since it just came off the truck and forgot about it.
2003 MDX Touring w Nav. Again front A/C and everything seems to be fine otherwise - just now the rear A/C suddenly stopped blowing cold conditioned air. That acutator is spring loaded, and when there is no vacuum supplied, or insufficient vacuum supplied the default position is with the lever in the up position (air flow directed to the floor). If this is the case, ensure to replace the blown fuse and rectify the electrical faults.
Here are some of the steps I took to determine that my problem is a switch that is leaking vacuum. The resistance will be the same IF the temperatures are the same. During your diagnosis, if you have found leaks into the hose, seal it. It is an on and off-cycle during your daily rounds of driving. Sometimes, your car's air intake system may be clogged, preventing proper air inflow. Q: Where is the AC fuse located? It does cool slightly when compared it to the system off. In other cases, the front AC may stop working with only the back AC working. The dryer was original, 2007.
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