Elantra HD (2006-10) :: A/C Intermittently Not Working
Nov 20, 2011
Over the last half of the summer my A/C stopped working on three separate occasions. Surprisingly none during the day (~100 at the time) all happened at night. I would drive somewhere with the A/C on with no issue, however when I would get back in my car 5-30 minutes later nothing would come on. The A/C and recirculate light would come on as usual, but no air at all from the vents. I tried restarting the car, checked the fuses, nothing. Then maybe an hour or two later it would come back on. So far this has happened 4 times, with the most recent being a week ago. I took it to a dealer when it first started happening and they could not find anything out of the ordinary. The last time it happened, I drove straight to the dealer, only to have my A/C come on 50 ft from the dealer. Another odd symptom I have seen is when I switch the A/C to the off position occasionally it will come back on for two seconds and shut off. (electrical maybe?) At fan speed two it makes a quiet ticking noise that it didn't make when I first bought the car (though my '01 Accent made the same noise).
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I have a 2008 Elantra w/ 108K miles. The current issue is the heat/ac blower intermittently not working. On Christmas Eve I started to drive it and realized the windshield was fogged up because blower was not working. The next day it worked fine...we chalked it up to maybe being related to having plugged a crock pot into the cigarette lighter (with a plug convertor thing)...wishful thinking that maybe something just got "overloaded." It has been working fine since, except last night when I started it, same thing--no air blowing on any of the settings (I read that if setting 4 works, but not 1-3, it makes a difference w/ the diagnosis). And, then again today...it works fine. Other things that I have noticed/that have happened in the past year or so (possibly unrelated, but figured it couldn't hurt to mention them just in case):
June 2013--started intermittently hearing a loud buzzing type sound (at first thought it was my phone vibrating)...sometimes would happen randomly, but mostly when I would adjust the heat/ac...sound coming from the passenger side front of the car floor area (maybe under glove box where I know the blower motor is). The buzzing would last anywhere from 2-20 seconds. Never did anything about it since everything was working fine...
Last winter--while driving home during a heavy snow storm w/ defrost on high and windshield wipers going noticed that the fan/blower seemed to "surge" when I stepped on the gas..like the blower would slow down when I braked and blast out much more air louder when I accelerated. I noticed this again tonight...possibly it has been ongoing and I just have not noticed.
Early Dec 2014-present--unable to adjust the temp setting...despite twisting the knob from red to blue, it remained hot air. Assumed it's the blend door, but figured we'd deal w/ it in the spring when I needed cold air again!
What this could be (or an overall problem that would explain all the problems?).
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I have a 2007 Elantra. Sometimes it starts, sometimes not. We've had it to the dealership and a local mechanic. No luck. No one seems to know what the problem is.
The fuel pump has been replaced, a new battery, the relay (?).
When you turn the key it either starts or.... Tries to start and it doesn't' seem electrical because if you pump the gas petal (and you get lucky) it might start after a few times of doing this.
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I have a 2010 Elantra and use the aux jack all the time for my iPod. About 3 months ago it would intermittently go mono and then I would jiggle the cable going to the aux jack and it would resume stereo. Now it is full time mono through the left speakers only and I have tried to switch cables with no success.
When I was in for service, I mentioned this to the dealer and he told me it is because I was not using a "Hyundai" cable to connect. Now I know this is B.S. as it is an industry standard headphone jack. Another client at the counter said hers was doing the same thing too.
I was thinking I had to pull the aux connector out of the radio and look for a loose wire or something.
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I have a 2010 Elantra 4dSD 2.0 DOHC. 61, 522 miles on it.
I have had no issues with the car until about 2 weeks ago. Suddenly the EPS light came on and I lost power steering. Upon pulling over and restarting the car the problem went away. I went about a week, and suddenly it did it again. Restarted car, went away, still does this intermittently.
I took it to the dealer, they found the following codes:
EPS - Electronic Power - C1259 - Steering Angle Sensor Electrical
EPS - Electronic Power - C1290 - Torque Sensor Main Signal Fault
EPS - Electronic Power - C1604ECU(Brake System) Hardware error
EPS - Electronic Power - C2400 - Motor
ABSESC - ABS/ESC - C1202 - Wheel Speed Sensor Front - LH Invalid/No Signal
ABSESC - ABS/ESC - C1208 - Wheel Speed Sensor Front - LH Invalid/No Signal
ABSESC - ABS/ESC - C1211 - Wheel Speed Sensor Front - LH Invalid/No Signal
They reset the codes, and EPS Reflash. Recalibrated EPS. They told me if the problem comes back I would need a new steering column ($1500+). This seems a bit strange to me for an intermittent issue. It would almost seem to me that if multiple sensors are effected that they are receiving bad data from somewhere. Could the ABS sensors be causing this problem with bad data? I've also heard a failing battery could cause this type of issue.
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I have a 2007 Elantra and I have been having problems with the clock light flickering intermittently. I took it to Hyundai and they replaced the clock unit and that hasn't fixed the problem. They said they have checked all the fuses and there isn't a problem with the fuses. What the problem might be? It is very annoying when driving, especially at night.
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I have a 2009 Hyundai Elantra. I've been having an issue where my radio turns off and on intermittently. To clarify, it will not turn itself on if the button was off. However, if I'm listening to the radio it can turn itself off and back on again multiple times. This happens on AM/FM/AM and Auxiliary. I'm assuming it happens with CD, but haven't listened to that lately.
Sometimes it happens in rapid succession, other times it's off for five minutes or more and comes back on. Other times it stays off. Sometimes it behaves as it should. It doesn't seem to matter if the car is warmed up or not. Is this merely a wonky fuse or something more sinister?
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So even with the AC light signalling ON on my display, the cool AC feel sometimes works well and sometimes will shut off and just blow air. The heater function works fine. I"m almost certain I need to charge in more freon.
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We have an 06 Equinox, and lately the low beams have been working intermittently. Also, I don't think the running lights are working either. Low beams don't work on auto or in the "on" position. The high beams do work. We took it to the dealership yesterday and they said we had a bad resistor and replaced it for $270. Tonight my wife tried to drive home after dark and no headlights. She has to take this vehicle on a business trip soon.
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Stock FM/CD/SAT radio that came with my Sonata, AM stopped working intermittently while FM and XM both still worked. Upgraded the radio to JVC with Bluetooth and found that AM still does not work. FM works fine as well as all other functions.
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2006 Chrysler 300 Limited. Very strange issue here. If the ignition key is turned on, and the headlight switch in ANY position (auto, off, parking, or on) the headlights and fog lights turn off and on on their own! No rhyme or reason to it. At first if the headlight switch was in the "auto" position, it wouldn't give me a problem. Now I can't shut the headlights off, the foglights off, or "flick" the high beams on by pulling the "multi-function" switch back. Long story short, i think the actual headlight switch might be faulty, but the multi-function switch not making the headlights do anything is what is making me second guess this issue. Where else I should look? Fuses are all fine.
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I've been having some troubles with my 2009 Hyundai sonata GLS 100k 4 cyl. Its quite an odd issue I've been having with my power windows. It seems that the switches or relays stop working intermittently however it does it in an odd fashion. First the drivers master switch works for all but sometimes not for the front passenger up nor down . The front passenger switch/relay does not work at times, up nor down, the rear passenger does not go up at all and the rear driver switch does not go down at all. I can't for the life of me fathom what might actually be the issue other than, all the switches breaking at the same time(due to power surge ?) Another theory I have is that is that my passengers and I sometimes place cellphones in the door handle and may have somehow damaged the switch ? I know these are some whacky conjectures but that I can think of.
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Bought daughter a 2008 Hyundai Elantra and now that it's warm the AC doesn't work. The compressor doesn't come on but i was able to jump it from the battery and it works. Checked all fuses 2 of the three fuses work however, the third (A/Con Switch) I think is for the automatic climate control. This is manual. I added r-134 with the compressor running and it doesn't seem to circulate. Checked the pressure, Low side seems normal the high side is low.
So in a nutshell, the compressor won't work unless it's jumped from the battery and the high side of the system is low. Low side is normal. Could it be the relay? i didn't check that.
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My 2009 elantra (160 k) ac is not working. The centre of the compressor doesn't turn when the ac is turned on and I don't hear any difference in the engine when turning it on (no extra load). I don't hear any clicks or anything for that matter. It just blows hot air.
From the research i have done it seems it doesn't necessarily mean the compressor is shot. It may just mean there is a leak in the evaporator core.
Is there a way to tell if the compressor is shot? I'm hearing that replacing the compressor is at least as twice as much as the evaporator core so I would like to go into a shop knowing one way or another.
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The brake lights on my 08 Elantra aren't working, but the window light is. The bulbs are fine, although I did replace them anyways, the brake light switch isn't the problem and it isn't the fuse. Any other reason why the brake lights don't work?
My hazards and all other lights work - it is only the brake lights that aren't.
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My rear defrost is not working. The display light on the push button switch comes on and I do hear a click when I push the button (I am assuming the solenoid) but no defrost.
I have not checked the fuse box yet but wondering if I hear the click, is it a fuse?
Also, if it could be a fuse where is it located?
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I have a 2008 Elantra Sedan Limited. The far right control knob for the direction of airflow does not work anymore. A few months back int would make a short strange noise when switching from the feet or head to defrost, etc. Then is stopped working last month and now it only blows air to the head area. Is there a cheap way to fix this? My brother who is a parts manager at a Ford dealer says it is most likely a faulty switch inside and a dealer only item.
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I have tried everything I know to fix the mode switch on the climate control. It's stuck in one position and I can't switch to floor or defrost. I've replaced the climate control panel and actuator and I STILL cannot get the modes to switch. I don't know what is is between the two causing it not to work. I've tried everything I know and I just can't seem to get anywhere. I only have a test light to see if voltages change and I can only get the voltage to change on one wire but none of the others.
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Throughout the summer, when the AC was off, in fact the whole system was off, the AC light would flicker on and off, but would never do this when the system was on. Today, the AC stopped working out of nowhere. We are on vacation in a warm destination, so AC would be nice, even though it is almost December. We also want to spend our money on our vacation, not AC repair.
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Push A/C button is always on green. The (air speed) 01234 button is also always on green. the Push button turns on and off orange whenever I click it.
Anyways, the AC doesn't blow any hot air... always just cold. I've adjusted the dial to red and have left it there for a long time... no hot air. Any trouble shooting I can do?
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I have bought a 2007 Elantra recently, and I have noticed that power outlet/ lighter is not working. I have checked the fuse but it is ok. I have to access the back of the power outlet to check the cables but I do not know how can I do it. How can I access the back of the power outlet step by step. Looking for some pictures or videos ....
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