Ac barely blows any air. what air does blow is cool enough. we have replaced the fan twice in the last 3 years bc they stop working. we have replaced the cabin filter, the air filter, the blower fuse and checked the freon. it still will barely blow
SOURCE: AC is not blowing cold air. How do I add freon?
What you will be looking for (in your engine compartment) looks almost like a large valve stem that you would see on a tire. It will probably have some kind of plastic cap on it.
It shouldn't be that difficult to find. You may want to search for an engine compartment diagram for your make/model/year vehicle.
SOURCE: No cool air, fan works, charged with freon, maybe
Hello there.You have a leak in your system.If you put freon in it and it worked then stopped its leaking out.You might have to buy a can of die that you put in the system that will lead you to where the leak is.Hope this solves your problem..Have A Great Day
I’m happy to assist further over the phone at https://www.6ya.com/expert/joe_a3369546f8067589
SOURCE: After approx 40 min of highway driving the AC stops blowing cold
This is a problem solved by moderation. There are pressure switches in the system which cut off the compressor for too high a charge and too low a charge. The unit is suppose to cycle between a predetermined range, a moderation between high and low. If you were having problems before replacing the freon there is at least 1 pressure switch that could have been your problem in the beginning. If you have a manifold guage which shows high and low pressure you can tell when the pressure switch is open or closed. Some switches and for sure the autoparts store selling them can tell you the op[erating range of your switch. You can try just replacing the low pressure switch and fly blind without the manifold guages. Know how many ounces of Freon you put in? Compare to specs to see if you overcharged.
SOURCE: my ac/heater fan stopped blowing.
Does it work on all speeds, or has it only stopped on #1 speed for instance....the blower motor is located at the passenger side footwell...
SOURCE: I have a 2004 Sante Fe 4 cyl. The check engine
OK To start with, you need to forget about the air conditioner until you get your engine running correctly. The HVAC is controlled by the Powertrain Control Module (PCM). The PCM is probably not allowing the HVAC to run due to all the engine misfire codes you are getting. It may be someting else, but until you get your engine running right, you could be spinning your wheels.
I have no clue what you are talking about when you say "Ignition Sensor" - there is no such sensor on any vehicle that I am aware of. There are many sensors that can affect the ignition like the Crankshaft Position Sensor, but none are called "Ignition Sensor".
P0300 Simply means that there is more than one cylinder misfiring.
P0301 means that cylinder #1 is misfiring, P0302 means that cylinder #2 is misfiring, P0303 means that cylinder #3 is misfiring, and P0304 means that cylinder # 4 is misfiring. (these are what are known as "current faults". The codes ending in "P" mean the same thing, but they are "pending" codes. Current faults MUST be dealt with FIRST.
The P0446 is not a valid code for a 2003-2005 Hyundai Santa Fe as far as I can tell. I tried to look the code up by application and it simply is not there. You may want to read the code again. Sometimes, if you are reading the codes with a "generic" OBD code reader, it will give the closest description it can for a "Vehicle-Specific" code. They are not allways correct. You may want to scan your computer with a scanner that is equipped with the Vehicle-Specific software for your vehicle. You will probably get a different rendering of the code.
The "generic" description of P0446 is "Evaporative Emmission Control System Vent Control Circuit" Again, the DTC list for your vehicle lists similar codes: P0445, P0447 and P0448, however it skips over the P0446 code. If you in fact have a problem with your EVAP vent solenoid circuit, it could, concievably be the cause of your misfire problem. It is possible that the vent solenoid is causing a huge vacuum leak. NOT LIKELY that it is causing the misfire codes, but POSSIBLE.
Anyway, there are literally HUNDREDS of parts that can be the cause of a misfire. This needs to be PROPERLY DIAGNOSED to determine the cause. It could be anything from worn-out spark plugs, a vacuum leak, a faulty fuel pump, all the way to a blown head gasket or cracked cylinder head. Whatever the actual cause may be, it is obviously affecting all 4 cylinders. (This will rule out some things).
Please also review this article:
What Else Could Be Wrong?
Air
Temperature Control Blend Door Failure No Heat
In all modern cars there is a tiny DC electric motor driven gear drive that moves a plastic door that blends heated and cooled air from the AC and the heater core, this is called (interestedly enough) the air temperature control blend door actuator. The motor that moves this door fails because the door starts sticking from warping, most common complaint is no heat but it can be no AC as well. To replace these parts (blend door and blend door actuator) you must remove the entire dash from the car. Always have this problem confirmed by a dealer or qualified repair shop as it is a very expensive repair.
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