Sonata NF (2006-10) :: 2007 - Air Conditioner Compressor Noise At Idle And As Pickup Speed
Aug 24, 2012
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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A few weeks ago, the air conditioner in my 06 worked great. I parked the car and went into a store for about an hour. When I turned the car back on, now the blower seems to blow at only about half of what it has since new. The compressor appears to be working properly and the air still gets (almost) ice cold, but the fan speed is significantly lower. Since it's now 100 F+ outside, it takes nearly an hour to really cool the cabin.
It's been about 18 months since my last cabin air filter change, so I'll be changing it this weekend, but I just don't see that causing a sudden and drastic effect on the fan speed. If the fan stopped working altogether, I could see it being a fuse or the fan motor itself, but I'm at a total loss.
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I have a front end noise when I go over a speed bump or hit a pot hole. It is kind of a crunching nise like something needs grease.
The Hyundai dealer charged me $54 to diagnose the problem and told me I needed both upper control arms replaced to the tune. They did force some grease in the bushings.
The car only has 63000 miles.
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I have a 2007 Sonata Ltd (63000 miles) and had a clunk in the front suspension. I had the front upper control arms replaced (which were visually badly worn) and that fixed the problem. But now, a several months later another similar clunking noise has developed when I go over those small speed bumps in parking lots.
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Just put my car in for it's first year's service(20,000 km). I made an observation to the service tech that during warm weather, there is a noticeable rattling whirring sound.
During testing, they were able to compare my car with another and confirmed the noise to be from the air-con compressor.
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I have a 2013 Prius with few miles. It seems like the air conditioner compressor makes a very loud humming noise. It's a little annoying inside, but outside it is really loud. I know it is running off an electric motor and I expect that to make some noise, but this seems excessive. Is this normal? Also, the compressor keeps running all the time. I thought they were supposed to cycle on and off. It seems like all air conditioning compressors do this to conserve energy, even a house air conditioning unit.
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Air Conditioner Blower Motor on any speed, lets say high. Running fine while driving. Come to a stop at idle or shift to N or P. A few seconds later the blower begins to vary its speed in pulsating rhythm in what would seem to be in cadence with what would be a rough or varying idle. Where to start? Is it the relay?
2002 BMW 330ci Convertible
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Got a 06 F250 V8 Gas. Went to turn AC on the other week & got warm air out vents. Put 1 can of 134 in & the gauge on the "kit" said it was in the green. It was working last summer. You can turn the compressor "face" so it's not locked up, but it's not kicking in. Swapped the replay with another one & the 10a fuse in the fusebox under the steering wheel is good. Is that the only ones? I find it hard to believe that it's something serious. We did change the belt a few weeks ago & I was hoping that we had pulled a wire loose. The vacuum line that plugs into the heater hoses is plugged in.
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Bought my 2006, V6, about 2 months ago. This morning was the first really cold once since I bought the care. When I started it today, the idle speed was about 1200 RPM. It took a few minutes to warm up and then the idle speed dropped to normal. Quick question. Is this normal?
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I have a 2007 Sonata and It recently lt began to blow hot air out of one side and freezing cold out the other side. Took it to the dealer and the technician said he didn't know what was wrong but recommended that the system be evacuated and refilled at a cost of 281.00. Actually, what he said is that the compressor is either overfilled or underfilled.
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I have a 2007 Camry CE 4 Cyl automatic with 50K miles. I noticed when I have the air conditioner on and I put the car in reverse there is a pulsation feeling while I have the foot on the brake aslmost like a rough idle as I am backing up. When I turn the air conditioner off the pulsation stops. Not sure if its the brakes , air conditioner, tranny. The shift of the tranny seems smooth, upon accelaration. This also happens when I come to a complete stop waiting for light to change. Again when I turn the air conditioner off the idle seems quiet while I have foot on the brake..
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Just put on eibachs and car is randomly making a grinding noise when slowly accelerating or braking.. Also noticing a fairly loud clicking noise when going in reverse. The noise isn't consistent and seems to happen more right after startup. I haven't gotten the alignment done yet and was wondering if this could be the problem. Will try and post a video soon.
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I've had my 2010 Accent for about 9 months. It's got about 63K miles on it. Serviced regularly, no issues there. Yesterday while coming home from a road trip....6 hours there, heavy driving while in town, 6 hours back 2 days later, the check engine light came on the dash. I then noticed that the car was idling very rough. When I put it in gear after starting, I can visibly see the car the shake. Having major problems accelerating, I have to mash the gas to the floor to make it go. Shutting off the air conditioner seems to work a bit, but not totally.
I should note that I live in the South East US, it was over 95 degrees when we left town and the destination was over 100 the entire time we were there. I was told this could be vapor lock, but am not sure about what to do to clear that when the temps won't drop around here for some time. I took it to AutoZone this morning to have them read the codes on the check engine light and was told that their code reader was incompatible with my car.
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I have been experiencing a slight issue with my 07 Sonata V6 lately. When I am accelerating, most commonly when already at speed around 80 to 90 km/h, I would hear this 2-3 ticks / clicks when I press lightly or moderately on the accelerator pedal. The car would accelerate fine without any further noises. When I release the pedal, the car slows down a bit, and I press on the pedal again, then the same sound re-appears.
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2007 Sonata V6. He's spent many hours and a good chunk of change at the dealership trying to get it fixed and nothing has worked yet. They honestly have no clue whats wrong which kinda scares me.
First off here is his problem. Occasionally when he starts the car it will idle very rough and struggles to accelerate to 30-40mph. When this happens he pulls over and shuts the car off for a few minutes then it will run fine again. When all of this happens there is no CEL or any light at all that flashes or comes on the dash.
Here is a list of things that have been replaced
Fuel pump
Throttle position sensor
Crank sensor
Plugs, wires and coil pack
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I did a search and what I saw all had to do with noise at startup.Mine is during cruising. I have a 2007 Sonata 4 cylinder with 112K miles. Within the last few months it began making a slight chattering noise when I accelerate and when cruising. It's worst around 55mph. When I let off, it almost goes away, but is loudest when I just am feathering the pedal to maintain speed.
If I put the pedal down a little more and accelerate, it is not loud, but still faintly there. At first I thought it was a tapping sound, but I've let some of my friends listen and its more like a clattering, metal rattling, or vibration perhaps. Its hard to describe. A week ago I had the check engine light come on with a "P0011 Hyundai - 'A' Camshaft Position Timing Over-Advanced Or System Performance Bank 1".
I changed the oil and took it into a local shop and they cleared the code/light and checked things out (the light hasn't reappeared). I had them take off the valve cover and make sure the top end was not making the noise. It seemed fine to them. They suggested I take it to the dealer for further diagnosis. I have not yet. It does not make noise during start up. If I have time I will upload a audio recording later. What may be making the noise? It seemed to get a little louder after the latest oil change, but that's probably me being more sensitive to the problem.
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I've got a troublesome misfire in a 2007 Sonata V6, 70k miles, which I have been trying and failing to track down for a long time.
More than a year ago, the owner of the car complained of rough idle. When this was first mentioned, I looked at the car, she and I talked, and I concluded that she hadn't changed the oil in some 20k miles. ...... Nothing else seemed wrong. I changed the oil, thinking that what she needed was an oil change.
Some time later, I was in the car myself and all of a sudden felt a strong bucking. Must've been a misfire. I recommended taking it to the Hyundai dealer, thinking the so-called 100k mile powertrain warranty would cover whatever it was (it didn't but whatever).
We drove it to the dealer. The dealer firstly informed us that the CEL had burned out, so we had missed some codes. The dealer further us the car needed new plugs and replacement of both upstream O2 sensors. Here was what the mechanic wrote:
"BETWEEN 35-40 PUT CRUISE ON AND WILL FEEL. CHECK AND ADVISE COMES AND GOES. MULTIPLE CODES STORED IN SYSTEM. ... P0300 RANDOM MISFIRE (ACTIVE), P0140 O2 SENSOR CIRCUIT NO ACTIVITY, P0154 O2 BS S1 NO ACTIVITY. WATCHED O2 VALUES AND FOUND ERRATIC READINGS. FOUND TSB 10-FL-012 SUGGESTING REPLACEMENT OF BOTH UPSTREAM O2 SENSORS. RECOMMEND COMPLETE SYSTEM TUNE UP FOR RANDOM MISFIRE. HOWEVER MISFIRE COULD BE RELATED TO O2 ACTIVITY.
So the owner went to a different mechanic and had the plugs, upstream O2 sensors, and one of the downstream sensors replaced. All OEM, I believe. ($$$!) (O2 sensor parts 39210-3C100, -3C200, and -3C400) Dunno why the downstream one was replaced, not my doing.
Following this, there was no real improvement. No codes either. The problem comes and goes, so maybe I thought it was fixed, but it has come back. Sometimes, it can be felt just slightly when the car starts cold. Other times, it can be felt just barely when driving at a consistent speed. Sometimes, the problem becomes really bad and jerks the car around. Other times, nothing.
What to check next? Coil packs? Intake manifold gasket? She never gets "top tier gasoline," but I would be skeptical that that's the problem. These are the top three suggestions I've heard.
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So my sonata 2.4L has been freaking me out lately. Once it has been driven and warmed up good, it starts to idle rough at rest at lights and in traffic. Now the crazy thing is it idles even more rough if I switch it into neutral during those stops. One more thing is it idles the worst after I fill up with gas and get stopped at lights.
So what I have done:
Cleaned the MAF sensor with MAF spray
Changed spark plugs (I4 so it comes with coils not plugs)
Put Lucas Gas treatment in
So I'm getting no check engine light. So all I can think of is fuel filter. Or some other sensor. I mean I know it could be a coil so that would be the next thing I check. What this could be?
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While driving my 2006 Sonata yesterday I noticed a tapping noise that increased and decreased with speed. Not really loud, but audible. I looked and really didn't see anything. However, I looked earlier a little closer and noticed my left front wheel has a rubber looking belt, hose (unsure) laying across the inside part of wheel, closer to what I assume is caliper.
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I'm in the market for an '09 Sonata 4cyl. I found a good looking one at a local Toyota dealership (supposed trade in). Unfortunately, the dealer claims there are no service records available...test drove it and heard noise coming from rear suspension when going over speed bumps. Dealer had tech look into it and said they lubed up the 'springs' and stabilizer/sway bar and now the noise is gone. Should I run away or take this thing in for an independent inspection, and if it checks out, buy it without the service records?
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I have a 2007 3.3L Sonata.
The car has been sitting for around 8 hours. Wh en I start it, the idle moves up and down about 100rmps. When I drive off there is a slight hesitation until I have driven for about 10-15 minutes. The idle is nice and steady after the too.
If I use a fuel system cleaner, it appears the car is fine for awhile and then the issue comes back.
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