Sonata NF (2006-10) :: Stutter When Slowly Braking And Turning

As the topic says, I get a slight stutter in the car when I'm say parking into a parking spot. As I get closer to 0 mph i feel the car kinda jerk a little bit.

It's done this since we bought it off a used car lot, and I figured it was the tranny fluid being burned or low. I did a drain/fill twice over the last weekend, and noticed while it has worked forthe issue, it's not fully rectified.

I also notice that 60-80% of the time when LIGHTLY accelerating, going from 1st to 2nd is kinda rough. If i floor it, it's actually pretty smooth.

It doesn't feel like anything "BAD" is happening - no grinding, doesn't feel like slippage...

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Tiguan :: 2009 - Stutter And Hesitation At Certain Speed / RPM

I am trying to trace down an issue with my 2009 Tiguan, auto. Its in regards to a stutter I notice in the vehicle at a certain speed/rpm. Almost appears if it doesn't want to shift and unless you really give it. The car certainly still has the power and all, this is also more noticeable on colder days. Today I stopped by the dealer where the vehicle was originally purchased as I am the 2nd owner and they provided me a complete print out of all the service history of the vehicle (quite informative).

Reading through it I found that the not even 6000 km the intake manifold was replaced under warranty they scanned for error P0215. This was on August 2014. They also replaced the injectors during this service.

And then also back in Dec. 2010, 70000km ago they replaced the manifold runner assembly and manifold for the first time.. Appears that they replaced the manifold on this car twice now.. Could this be my cause for the stutter?

Hard to believe that the same part would be getting replaced on a car within 60000km twice..

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Sonata NF (2006-10) :: GLS Hesitation On Hard Acceleration

I have a 2010 Sonata GLS 4-cylinder approximately 124K miles which has been hesitating on hard accelerations for about 8 months. It will usually do this when getting on an on-ramp for the freeway or if I need to do a U-turn and get up to speed quickly. What happens is I punch the gas and the vehicle acts as if it's not getting any gas and hesitates or stalls and then it finally takes off. Usually I see a cloud of grey/white smoke behind the car enough that I am unable to see any cars in my rear view mirror.

I do not seem to see a difference when the vehicle is warm/cold. I do not have a CEL nor have had one. I have replaced the MAP sensor, PCV valve and spark plugs (properly gapped). I have done a compression test and am getting roughly 180-185 psi per cylinder. I am not experiencing any oil loss/coolant loss, do not see any oil in the coolant or gummed-up or oily spark plugs. I have also replaced the transmission fluid, doing a drain and flushing the torque converter. I have also cleaned the throttle body, and am using a new air filter and the oil has been changed within the past 1000 miles.

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Sonata NF (2006-10) :: Hesitation For A Second Or So When Floor The Accelerator

About once every 4-6 months or so, when I floor the accelerator, my Sonata behaves in a very odd way. Instead of the typical surge of acceleration, it actually hesitates/decelerates for a second or so, then kicks in like normal. This is so pronounced that I lunge forward in my seat a bit before it kicks in. I've not yet been in a situation were this behavior has endangered me but it is quite disconcerting when it does happen. Obviously this is not something that is repeatable in a manner for any shop to diagnose. There is no CEL and it occurs so infrequently that I'm not that concerned about it yet. The only consistency about this is that this occurs while driving around town after I've slowed down to around 5-10 MPH approaching a light, taken a right turn and then attempt to accelerate into traffic. Since I'm usually in a turn lane, I'm out of the way of traffic and can adjust to this situation without any issues to either myself or the traffic around me.

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Sonata NF (2006-10) :: Shudder / Hesitation While Driving Between 30 - 40 Mph

2006 Sonata 3.3 liter engine with 123K miles. While driving between 30-40 mph, when I "feather" the gas pedal the car will shudder. It does not happen every time but it usually happens a couple times when it does. I see no change in rpm, transmission fluid is at a good level.

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Sonata NF (2006-10) :: Hesitation When Engine Is Cold

Ok, got a hesitation when the engine is cold, almost feels like a miss. Dealer could not find anything and there are no engine codes. They wanted to replace the plugs with new platinum plugs. I said did you pull any plugs, not that is what the tech said it could be. Could it be the Mass air flow sensor? Or a coil. After a mile or 2 it is fine. I switched to shell premium since dealer told me I had to get a decarbonization from using cheap gas. I used exxon regular and BP regular with a treat of premium every few tanks. But now I am on shell and they said I needed another decarbonization, This is getting rather expensive, I may go back to my local mechanic once the warranty is out. But the hesitation puzzles me.

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Sonata I45 (LF 2015+) :: Cruise Control - Transmission Will Downshift To 4th Speed Whenever Go Downhill

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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Sonata NF (2006-10) :: Power Hesitation At 45 MPH - No Load At Engine

Doesn't happen all the time but when it does it is obvious at 45 mph. Not there at no load on engine. No code shown.

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Honda - Ridgeline :: 2006 - Transmission Hesitation At 45 MPH

On any type of road (flat, incline, decline) when I hit 45 mph, the transmission seems to hesitate about which gear to pick. You can hear a rumbling sound (not loud) when this is occurring. Furthermore, I notice that the RPMs fluctuate up and down by about 200-300. I have brought the vehicle to several mechanics. One mechanic suggests that it's the u-joint since it has a small flat spot. Another mechanic thinks a software upgrade is needed. The trans was recently flushed and the issue still persists. I tried looking up any service bulletins and did come across SB 06-062, which addresses a 4th gear issue on 2006 Ridgelines.

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Sonata NF (2006-10) :: Stuttering When Cruise At 50 MPH

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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Sonata NF (2006-10) :: 2007 3.3L - Cold Start Hesitation / ESC-Off And CEL Illuminates

Relative owns a 2007 Sonata 3.3L V6 (58k or so), purchased from in-laws so no warranty, unfortunately. Recently, in cold weather the car has developed hesitation issues upon start up, ESC-Off light illuminates and CEL. Has to restart for somewhat normal operation.

Had a chance to look at it today and CEL had already turned off and only code stored is P2135.

Researching issue (mostly here, so thx!), looks like TPS is faulty and can be replaced separate from throttle body to save $.

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Sonata NF (2006-10) :: 2009 Auto Throttle Hesitation From Standstill

My Sonata has developed a hesitation when accelerating from a standstill. Sometimes the symptom is worse. I haven't identified any correlation of this symptom with any other scenarios.

Symptom : When at a stand-still, lightly pressing on the gas pedal doesn't result in corresponding slow acceleration, it is only after a certain threshold (of throttle application) has passed that power from the engine is transmitted to the wheels. When this occurs, the result is a jerky start.

In other words, trying to feather the gas pedal to allow a gradual and smooth acceleration from stand-still is not possible when this issue occurs.

I believe the 09' Sonata has a drive by wire throttle correct? If so, could this be a computer calibration issue?

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Sonata NF (2006-10) :: 2007 3.3L - Poor Idle And Hesitation After Sitting For Hours

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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Sonata NF (2006-10) :: 2008 - Hesitation During Acceleration / Reduced Fuel Mileage

I bought a used 2008 Sonata GLS with 65K miles 2 years ago. It's been a great car so far. For the first 25K miles that I drove it, it had good pickup and got ~30 MPG for my highway driving. In the last ~5K miles, the fuel mileage has dropped to 25MPG highway and it has some hesitation when accelerating, especially on lower RPM's. I changed the spark plugs with NGK Iridium, but it is still having the issue. What to check?

Some possibilities: ignition coils, sensors, timing belt, etc?

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Lexus GS 2006-11 :: 2008 GS350 Transmission - Hesitation At Low Speeds

I have 08 GS350 that has been doing some big time hesitating at low speeds. Brought to dealer and the mentioned water got into the transmissions and want me to pay for a flush.(I think they should, since it's under warranty). Can damage done now cause issues in the future?

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Sonata NF (2006-10) :: 2007 - Severe Hesitation / Car Almost Quits On Accelerating From A Stopped Position

I purchased a 2007 Sonata with the 3.3L about six months ago. I really like the car, it has a lot of good features and lots of power; however, I am starting to have problems with the car. On accelerating from a stopped position the car almost quits (hesitates severely) and then picks up and goes on normally. Also, between 40 and 50 mph the car starts to jerk pretty hard for a few seconds and then it straightens out and runs normally again; it will do this repeatedly if it is kept between 40 and 50 mph.

When this first started happening the CEL would come on randomly and stay on for a day or two and then go off. While the CEL was on I took it to Autozone and had them pull the code, they said it was the crankshaft position sensor. Well based on the symptoms the diagnosis made sense. I replaced the sensor and the car seemed to be running normally on the 30 minute test drive. The next day my wife drove to work and she said the same symptoms had come back. It has been several weeks since I replaced the sensor and the CEL has not come back on. I have seen several postings about the spark plugs and wires and that is my next step. BTW the car has 94k miles.

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Sonata NF (2006-10) :: Code P2159 - Cruise Control Does Not Work

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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Sonata NF (2006-10) :: Check Engine / ESC Light And Cruise Not Working All The Time

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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Sonata I45 (LF 2015+) :: Slight Stutter At Highway Speed When Going Uphill

I just picked up a Sport. I've noticed 1,2 quick stutter type thing happening intermittently at highway speed going up a hill. Dealer service probably won't be able to have it happen as it only has happened 3 times in my 400 miles.

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