Sonata NF (2006-10) :: AC Started Blowing Hot Air / Compressor Isn't On
Jul 30, 2011
I've got a 2007 Sonata that has started blowing HOT air. It's like the compressor isn't on. In looking for the issue, I looked for blown fuses first because I find it hard to believe that the AC would work fine and then stop working minutes later. Sure enough, I found a blown A CON fuse in the fuse box under the hood. No problem right? Just replace it and everything will be A-OK. WRONG. Every time I replace the fuse and test the AC it blows. I'm thinking maybe something with the relay?
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My 2006 Sonata GLS 3.3 A/C started blowing warm, so I checked all the fuses and they were good. Swapped the relays and still nothing so I check the wire to the compressor and it was reading 14v. This would lead me to believe the a/c clutch is bad, I didn't want to replace just the clutch incase my compressor craps out on me later on so I'm just replacing the whole thing now. My questions is how much oil does a new compressor need?
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98 e150 - 4.6l, 185k, My air started blowing warm the other day. It worked perfectly fine. I checked the compressor to see if it was turning. Nope! I am wondering if it could be the clutch?
I replaced the alternator and changed the serpentine belt a couple of months ago and noticed a very slight whining sound sometime after I did this. I thought something might be going and just ignored it and said to myself, that's all the new tread in the new belt whining a little. Could be! not sure.
Anyway, where could I possibly start an easy procedure to see why the failure in the compressor not turning? Compressor is a lot harder to get at than an alternator!
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The A/c stopped blowing cold on my 06 Passat 2.0t. I checked the pressures on the low side of the system and it was 100 psi with a cold engine and 130 when hot. Obviously this is too much. It seems as if the compressor is always engaged even when the a/c is off (every part of the a/c pulley is always spinning the little nut sticking out of the center of the pulley spins as well not but im not sure if that's how it is when the compressor isn't engaged).
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Just noticed yesterday that the compressor clutch does not disengage while the air conditioner is on. It is 2005 V6 Sonata Elite. All the other cars I have ever owned had compressor clutches that cycle. Internet searches indicate that there might be air conditioners with only a low-pressure switch.
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I have an 06 Sonata 4Cyl
My air conditioner has decided to stop working. The compressor wont turn on. This has happened in the past a handful of times but it has always come back either after changing my cabin air filter or just by itself after a few minutes. So far its been 24 hours and it still doesn't work.
From reading online, I'm thinking one thing to check is the Evaporator Temperature Sensor. It seems like that could explain the behavior in the past..
In the manual, it says "Pull out out the passenger's crash pad center low cover". Where is this?
After watching this video: [URL] .... I thought I knew where it was, but when I look in that location, I don't see any connectors.
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The screen that you see the temperature and see the the way that the AC is blowing started flickering for some time now . It's an electric problem ...I guess . Maybe the fuse is going bad ? -06 Azera ....
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101,400 miles on car. Started noticing about 2 weeks ago, at idle, and as pickup up speed, a whining noise coming from the engine bay. It has gotten a little worse, so I started trouble shooting.
Basically, at idle, its somewhat annoying, but as you hit 20-30mph it can be more annoying if the radio is off or at low level. If Im sitting there in park, and its whining away, all it takes is me cutting the A/C knob to OFF, and then quiet as a mouse.
So, other than the compressor going bad, I can't see anything else related? I always hate when AC problems show up, they are never cheap....
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I have a 3.3 limited ed 09 sonata that I soo enjoy driving. However, two weeks ago the AC stopped blowing completely. It's a fully automatic unit and no air movement in any position at any temp. The compressor is coming on as I can hear it and driving on interstate I can feel the slightest bit of cold air coming thru. I bought a new resistor that was over a hundred bucks and it did nothing. I took the blower motor out and used clip on wires str8 to the battery and it works. ...
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I have a 2007 Sonata 2.0 crdi which is poorly. The heater stopped blowing out hot air on Saturday. The heater is only blowing slightly warm air. The passenger side seems to be slightly warmer. I have looked at the side of the heater matrix whilst rotating the temp control on the passenger side and this moves the plastic adjuster on the matrix freely. When I turn the fan speed controller then the adjustment on the drivers side on the matrix moves. Both of these move freely.
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Was just on a trip (about 200 miles or so each way) and the AC worked just fine.
Car has sat for a few days unused.....when I used it to day, the AC blows warm...doesnt cool at all.
I hooked up a gauge to the low pressure side and the pressure reads very high (in the red zone of the gauge).....
Cant tell if the compressor is kicking on or not when the car is running...
Car is 600 miles out of warranty (of course).
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Basically when I have it cranked on high (level 4) it feels like its blowing on level 2. some times when I start the car it doesn't even turn on. I have to tap or hit under the glove box for it to start. Is it wiring or could it be AC Blower fan or something else.
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Suddenly my 2007 Sonata Limited trunk and gas lid fuse keeps blowing.
I'm not an electrical guy so I don't know how to check with a meter, I oiled the latches. My car was rear ended near the tank lid/bumper area a few years ago, but everything worked fine til recently.
I can replace the fuse, but after a few uses it will blow, sometimes it will blow without being used. I can't tell if it's the trunk or gas lid causing the problem because nothing will happen immediately, Basically I am only finding out my fuse blew when I need to use it.
Where I could look to inspect the wiring for kinks or it's connection run?
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I tried installing my new DDMTuning 35W 6000K HID headlights with relay harness. No issues until I went to turn the car on and actually power them up. Neither side would work. I checked my power connection, ground, in-line fuse, swapped out the relay, tried without the harness, and nothing worked. I tried putting the stock bulbs back in and I found out they wouldn't turn on either.
I found the issue to be a blown 20 amp fuse in slot 23 (see pic). I replaced it and tried to turn the car on with the HIDs and it blew again. I hooked the stock lights back up and they seem to work fine now with another new fuse. The fuse description says H/LP LO and HID LO LH. Why this fuse is blowing. I am wondering if I just need a higher amperage fuse because of the HID power (in line for harness is 30 amp) or if something else is the culprit. I'm stumped.
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I got in my 2009 Sonata this morning, started it and turned on the headlights. The headlights turned on momentarily and then turned off. The 20 amp headlight fuse blew. I cleaned the battery ground on the fender and the battery terminals. I also cleaned the connection between the battery terminal connector and the negative cable. I put everything back together and installed a new 20 amp fuse. I turned the lights on. They lit momentarily and then, predictably, blew the fuse again. Curiously enough, the "passing lights",which are just the high beams on another position on the headlight switch, still work.
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A/C on my 2006 V6 3,3L Sonata just stopped working properly today when driving away from a supermarket, it blows only very hot air regardless of the temperature you choose on the display. It worked fine while driving to the supermarket and nothing remarkable happened to the car while I was shopping. All lights on A/C display, fan speed and everything else works fine, it just doesn't react to the temperature button at all.
I already checked the 10A A/C fuse under the bonnet, it's fine. There is an A/C relay in fuse box that I can check tomorrow but I suspect the fault to be somewhere else.
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The heater in my '07 Sonata (V6) does not seem to do too much - the air gets warm, but not hot - even at full blast. (A real problem here in Wisconsin when the outside temp gets below zero). Temperature gauge always reads below the midpoint on the gauge. My hunch is I need to install a hotter thermostat.
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AC does not work on Sonata 2006. It blows hot air.
1. Freon pressure is high level in red and I didn't add any new freon.
2. Checked fuse 7 A/Con and 19 A/C Relay and both are OK.
When I click on AC on/off green light on AC panel the light is lit but I don't hear any loud clicking sound.
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I recently had the transmission fluid changed in my 2009 Sonata NF 4 cyl. Current mileage is 60,000 miles. Directly afterwards, the transmission started "sliding" into 4th gear from 3rd gear. I assume that fluid contamination has caused a clog somewhere in the transmission. I have had the tsb done on the car for the transmission and the fluid had been exchanged @ 30,000 miles prior to this service.
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Warning - rant/venting ahead.
Yesterday out of nowhere the red Airbag light on the dash illuminated when I started the car. This has never happened before. I tried turning the car off and on, but it just came back.
The light comes on normally, then goes out. It then comes right back on at the same time the "passenger airbag off" light illuminates.
I made a quick check of the connections under the passenger seat and none seemed loose. I'm planning on taking a closer look and disconnecting/reconnecting the terminals to see if anything is obviously wrong.
I'm pretty mad that my Sonata has another problem. It only has 80k miles. I've owned it just over one year and I've had the following problems:
-fuel overflowing. I haven't been able to sort this one out yet.
-OCV failure. I replaced it myself.
-Lots of ABS and brake warning lights. Dealer eventually told me I needed a new ABS pump for nearly $2000.
-Now this airbag problem.
I'm definitely very dissatisfied with the reliability of this car. If I had it to do over again, I definitely would have spent a little more to get another brand. This has been the most unreliable car I've owned in my 13 years of driving.
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My car is 2008 Sonata GLS 2.4L. Recently the ESC off light turns on always when I drive a while after started the car. It still drives fine. But I have concerns of safety issues.
I heard it's a common issue for Sonata even 2011 model. I also heard Hyundai recalls for a system upgrade because of ESC off light problem. If it's true, will the dealership do it for my 2008 pre-owned Sonata for free?
It drives fine, but anyway it could be an potential safety issue. So should I drive the car to the dealership to have it fixed? I heard may owners spent a lot of time and money but never have it fixed.
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