Sonata NF (2006-10) :: Stuttering When Cruise At 50 MPH
Nov 26, 2011
My 2008 2.4-L NF has a minor issue. When I cruise at ~50 MPH, the car "stutters" for lack of a better word. For some reason I have trouble explaining this, but I guess a good description is that it's like a series of minor but rapid changes in throttle position--but faster than you could possibly do intentionally.
It seems worst when I first start it cold, and then get up to speed on the parkway near my house. It does do it at full temp, but it's hardly noticeable then. Even at its worst (i.e. when cold), it's something no one else has mentioned to me, so I guess I'm the only one that notices it.
What's weird is that it doesn't happen at any other speed other than ~50 MPH. Even a minor change in speed eliminates the problem.
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My father has an 05/06 4cyl Sonata automatic that he keeps in good shape. They commuted a fair distance before they retired last year, so the car has around 70k miles on it. He'd mentioned to me a few months back that it had a bit of a transmission hesitation when cruising at a steady 75-85km/h. I'd forgotten about it until I drove the car the other day...
What happens is that after cruising for around ten minutes at steady speed, the transmission begins to 'stutter'. It's not any huge event, but it's almost as if the engine was misfiring, which is the feeling you get. A small stuttering as power drops for a few tenths of a second, then comes back, then drops again, repeatedly. What he tells me he does to get away from this is to decelerate to a lower speed and hold there(~70km/h or lower) or repeatedly accelerate and decelerate gently from 75km/h to 85km/h. Both of these worked. I also found a third solution, that if you move the gear selector from 'D' to the 'manual shift' mode (it usually goes to '4' in these circumstances) the problem disappears and the car drives fine. Regular upshifts and downshifts are fine in both automatic and manual modes, and the fluid level is normal.
What burns me is that he'd taken the car in for servicing before the end of his regular warranty period and was told, "Oh, that's normal. They ALL do that. It's just the computer trying to re-learn how you drive." I can't STAND how dealer techs try to take advantage of people like this. Yes, the ECUs self-learn and yes there can be dramatic issues when a new ECU or transmission or whatnot is installed until it happens, but this kind of thing doesn't happen 'out of the blue'! I told him to take it back and put the screws to 'em that they should fix it under warranty since that's when the problem was reported. Otherwise, push them for a really good deal on a new Sonata Turbo...
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I have a 2006 sonata gl that's recently had an engine/transmission swap out of a 2007 sonata gls both 2.4L and auto. My car does not have ABS but the donor car did (from what i ready on other threads that important!). Now only a few days after the swap, i am getting a P2159 code (which i believe is for the vehicle speed sensor) and the cruise control doesn't work. Other than that the transmission shifts smooth and every thing else works good, including the speedometer (shouldn't it be off if the VSS is bad?).
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However I did get a code for the brake light switch and replaced it. Then the same code happened again and everything started acting up and not working again. The strange part is that even though I got the brake light switch code my brake lights still work. The only thing that stops working is my cruise control intermittently.
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2008 elantra, 57,500 miles (~92,500 kilometers)
While lightly accelerating or maintaining speed anywhere in the 20-50mph (30-80kph) range there's a slight jumpy or stuttering feeling. It feels like it's coming from the engine. It's not violent. Passengers don't notice. But it definitely doesn't feel right. It's kind of like a small succession of shakes that I can feel through the pedal. I've been trying to play with it to see when it does it. If you accelerate quickly through this range it won't do it and it actually feels really smooth. Outside of this range is also pretty smooth regardless of how quickly you accelerate. However if you accelerate slowly or just maintain speed or let your foot off the gas and lightly resume acceleration at any point in this range, the stuttering intermittently happens.
This is pretty annoying as 20-50mph is the speed I'm driving at most of the time (city/suburban driving).
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My 2008 Accent started to stutter between 1500 and 2500 rpms. Now the check engine light has come on, and the engine is idling rough.
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I just purchased a used 2006 package 3 with 66500 miles on it. Drove it to work today and the car started sputtering/shuddering when i was accelerating onto the highway. The check engine line came on so I took it to the dealership. Turns out it was a bad sensor.
When they fixed the bad sensor, the mechanic told me that its normal to feel a slight stuttering when the gas engine kicks in or off which seems to be confirmed by other members here.
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I have a 2008 Accent. Yesterday the check engine light started to blink and the car started stuttering and the idle was rough. I've changed the air filter, which worked. But, it was recommended that I change the fuel filter. But, when I went to the parts store, they say that this model has a fuel strainer instead. What is that and where is it on my car? Is it easy to replace?
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When I drive normally using the pedal, I can see slight movements of the tachometer as the torque converter locks and unlocks (this is normal when lifting off the gas and pushing it again). However, I notice when my cruise is set that my tach doesn't move at all, it doesn't matter if I'm going downhill, uphill, or whatever. It stays frozen wherever it's at when I hit the "set" button. Maybe the torque converter stays locked when the cruise is set? This isn't a problem, it just seems odd to me.
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My cruise control works just fine when my headlights are off as do my brake lights, but when i turn the lights on the cruise won't engage and the brake lights don't work. I've got 150K on the car so no longer under warranty...
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2012 GLS ... For a few weeks after buying my car, the cruise control electronics were perfectly responsive.
I find that after a few thousands miles, I am able to turn ON the cruise control easily, but often now pressing the 'Set' button doesn't do anything until I press the On/Off button and turn it back on, hit Cancel a bunch of times, and THEN it might let me 'Set' the CC.
It kind of scares me to think that the CC could malfunction and not let me turn it off AT ALL one day, which is far worse than simply not being able to set the CC.
Would the dealer be able to simply "reset" the electronics pertaining to these controls?
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I've had my Sonata for six days, and I love it... Except... The cruise control doesn't work. At all. Never did. I tried pulling up on the brake pedal like another poster had suggested, but that didn't do a thing. Looks like a trip to the dealership is in order...
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Mine has done it a few times now. It seems to do it going up a very long gradual to steeper incline, such as climbing some mountains, when set to 60 MPH. It'll start dropping down until it gets to about 47 +/- MPH, then the cruise just kicks off. No downshifting in sight...
There's a stretch of route 219 through PA heading north towards NY that I encounter about once a month. Yesterday was the 2nd time I've had my Sonata on this trip, and it did it again. It actually did it twice last month on this trip.
The dealer reset the transmission computer due to very cold weather "slipping" from 1-2 shift after the first trip. It appears that didn't take care of this issue, though I didn't mention it to the dealer at the time (it slipped my mind).
I'm reluctant to take it to the dealer, since odds are they won't be able to duplicate the issue. We don't have any roads around here quite like the one this happens on.
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Had an odd event this morning on my drive into work. Put the cruise control on at about 75 mph, after several mins came up to traffic and as I pressed the brake the car began to speed up and the engine revved up, I had to press the cancel button on the cruise control to disengage it. Immediately after disengaging it, the ESC came on solid. Once at work, I re-started the car without issue and the ESC light went off. Didn't try the cruise control again on the drive in.
2011 Sonata Limited with approx. 55K. Bought new in Feb in 2010. I have had the brake stop recall performed several years ago.
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Bought a Sonata Limited with 5500 miles on it from local dealership. Soon after I noticed that the cruise did not always engage. Problem is that when I brought it in for service, no one was able to duplicate the problem. What to do?
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I have been using ACC a lot during my daily commute, it's really an effortless way to drive the car on a daily basis.
One of the issues I have been running into with it is that sometimes when the car in front (recognized by radar) accelerates and immediately decelerates to a quick stop my Sonata's ACC does not react and apply the brakes fast enough. The car will basically apply some braking power (~50%) while very quickly approaching the car in front, all the while triggering the rapid beeping of the Collision Detection system. Everytime this happens I have always had to manually intervene and apply the necessary braking power to stop short of hitting the car in front. This is pretty ridiculous to me since if the car KNOWS that it will crash without additional braking, and has the ability to apply the brakes, why doesn't it do so properly?
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When I turn my Cruise Control "On" it will light up green on my dashboard, However when I press the "set" button to set the speed nothing happens. It was working fine a few weeks ago. Could it be a fuse? If so what fuse? How I can fix this? 2011 Sonata
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2012 Sonata Limited... I purchased my car in November of 2011. It had allegedly been driven for 5500 miles by a salesperson at the dealership.
Within a week, both my husband and I noticed that the cruise control would simply not go on every once in a while. The dealer claims to have taken apart the cruise control, looking for problems, but says there are no problems; that I should come back in after docummenting problems more specifically.
I also continue to hear the creaking noise in the sun-roof area. Allegedly, the Body Shop adjusted the headliner clips, but I still hear creaking.
I am most concerned with the cruise control, but annoyed at the dealer for keeping my car for over two weeks and having achieved nothing. I like the car, but this kind of a start with it makes me want to sell it and go get either another Honda or a used Volvo.
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My 2012 Sonata is flaking in the grey area on the steering wheel around the cruise and volume controls. Is there a remedy? Would it be covered under warranty? It's nothing major, but annoying none the less.
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The cruise control on my 2013 works as I expected.
However the cruise control on my 2016 Sonata does not.
When driving at highway speeds (65 to 70 mph) in cruise control and the shifter set on "D" (drive) the transmission will down shift to 4th speed whenever I go down hill.
This might be intentional as a way to keep the car from exceeding the set speed, but I have never heard of this and it would seem to place more wear an tear on the transmissions.
Do the down shifting is engineered in or if it is a service problem that I need to have addressed...
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So I've had my 2011 Hyundai Sonata since May of 2013 and I've had few problems with it until now. For some reason, at seemingly completely random intervals, my cruise control will completely stop working while I'm driving. What exactly I mean by this is that I'll be driving with cruise control set and suddenly it kicks off and I have to continue by manually controlling the gas pedal. I am also completely unable to turn Cruise back on until I have shut off the car and turned it back on. There are also times where I'll have Cruise control "On" but not using it and suddenly the Cruise indicator light on the dash will disappear, I'll try to turn on Cruise at that point and it will not work. Again this is the case until I turn the car off and then back on again.
I have followed a couple guides on adjusting the wiring harness in the steering wheel, behind the air bag, to make sure it is not a loose connector issue, but this has not seemed to work. Another reason why I think this may be something more than just that is that I'm also having transmission issues that seem to correlate with the times that my car loses the ability to use Cruise Control. Everything is completely fine with the car, including the transmission, until the above mentioned issue occurs, at which point if I happen to be driving below about 50mph, or reach a point where I have to slow down below 50mph, my transmission begins to intermittently disengage and reengage fairly erratically. It has happened a couple times while cruising at around 65-70mph, but has acted the worst bellow 50mph.
To make things even MORE confusing, the transmission issues seem to correct themselves with a simple shut down and restart of the car, just like with the Cruise Control problem. I'm at a complete loss now. I don't want to deal with a dealership unless I absolutely have to.
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