Ford F-150 (2009-2014) :: Slight Hesitation From Idle / Cleaning Throttle Body
I bought a 2009 f150 5.4 with 150000 miles on it. I have a slight hesitation from idle so I want to clean the throttle body. I found several for the older f150"s with the horizontal throttle body but this 2009 has a vertical mounted one. I change the air filter and cleaned the MAF but didn't change anything. My wife's ford 500 had this problem and cleaning the throttle body completely cured it.
View 3 RepliesLexus GS 2006-11 :: GS460 Throttle Hesitation - RPMs Very Low
A major throttle hesitation has developed in this car, that is so bad, sometimes when you put the pedal to the floor it doesn't want to accelerate at all. Feels like the car has a bout 25% power ,it seems to shift very weird also, its like the car is trying to keep the rpms very low. I am not positive but it seems to occur mostly when the car is first started and still cold or on very wet or humid days? It feels like the car is activating the traction control and the throttle plate is not opening all the way at wot?
I am using 5-20 oil. Maybe should go back to 0-20 oil. Cant imagine the sensors are picking up on extra drag from colder thicker oil at that close of a weight? No codes are showing when the car is checked out.
Lexus RX 2010-15 :: F Sport Slow Throttle Response From Standstill
The throttle response from a standstill seems VERY slow. When I push down the accelerator, it seems to go down a good 3-4 inches before I meet any significant resistance, and even then, I can do a good 2 second count before the engine seems to engage. If I am stopped at a light, and I slightly blip the accelerator, then push the pedal down, it does better. But if I am stopped and floor the gas pedal, nothing happens....at ALL...for at least 2 seconds. It is slightly better when in manual, but the issue is enough for even my wife to comment that it takes off very slowly when you first give it gas.
View 14 RepliesSonata 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.
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.
View 7 RepliesSonata 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.
View 2 RepliesSonata 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.
View 2 RepliesSonata 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.
View 8 RepliesSonata NF (2006-10) :: Transmission Stutter / Hesitation At Cruise
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...
Sonata NF (2006-10) :: Window Reverses Down Using Auto Up
2006 Sonata. I had to remount the drivers window glass which had slipped out of the clamps and fell inside the door.
Afterwards, if using the window auto-up feature, the window reaches the top and reverse back down to about the one-third closed point. Using the normal (non-auto up) it remains properly closed at the top.
My first thought was it needed to be reset by the well documented hold the switch up for at least .2 seconds method. I've done that and it hasn't solved the issue.
There doesn't appear to be any unusual resistance to movement which might activate any 'arm in the window' type safety feature. (if it even exists)
I would also expect that type of thing to work regardless if using auto-up or not anyways.
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 $.
Sonata NF (2006-10) :: Auto Transmission Jerk Due To Bad Relay
Recently my 2006 2.4 L encounter auto transmission jerk intermittently with P0734 and P0765(bad D shifting solenoid. Change the bad solenoid and the problems still occur. Later check all the wiring as per hyundai TSB and all seems to be ok. Then an error code appear that indicate bad ATM relay (auto transmission module). I interchange the suspected relay with the horn relays and the problems resolved. I did check the relay coil which is ok but the mechanical contacts is badly corroded that results in some resistance that causes the 12v supply to the Solenoids to be affected. (the relay is situated in the relay compartment next to battery).
View 6 RepliesSonata NF (2006-10) :: Auto Climate Control Not Working
I have a 2009 Hyundai Sonata that has the digital display for the climate control- which i am assuming is the auto climate control system that is talked about on here frequently. The problem is that the fuse for the climate control system continually blows, causing the display and all controls for the climate control system, to stop working. Put a new fuse it, blows again.
View 1 RepliesSonata NF (2006-10) :: 2007 - Auto Lights Not Working?
I don't remember pressing anything, but out of the blue my automatic lights aren't working anymore. The bright lights work and the fog lights work....but the headlights will not come on.
View 7 RepliesAccent MC (2006-11) :: 2009 - Hesitation When Turning Over To Start
The wife's accent started hesitating when turning over to start. Like turn the key, engine will turn 1/4 turn, then nothing for a second or 2 ( without releasing the key) and then crank and start fine.
Checked connections at the battery, cleaned 'em. No CEL on.
I had a ignition cylinder freeze last winter, when my wife dropped her key in the snow and put it in with water on it. Had to heat the cylinder with a small lighter-style blowtorch and put low temp graphite in there.
Did I maybe melt something in there?? Something else??
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.
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?
Sonata NF (2006-10) :: Auto Transmission Suddenly Disengaged While Slowing Down From 3rd To 2nd
Today my transmission suddenly disengaged while slowing down from 3rd to 2nd as if i switched to neutral.Car revved freely when i pressed accelerator. Then suddenly after a second it engaged again and shifted normally. Never had this issue before i racked up 1,29,000 KM on my ride.
I can't see it as "slipping" as there was no change in speed and it revved freely. Also I 'm due for fluid change. What can be the issue?
Sonata NF (2006-10) :: Surging While Driving Under Light Throttle
My recently acquired '07 SE V6 has a little quirk when I drive it in the morning. Until it warms up completely, it seems to have a little surge while driving under light throttle. Tach doesn't jumo, and there is no CEL. Tranny was just flushed and serviced also. Once the car is at normal operating temp, all is well. I've searched the archives, and there are some suggestions about having a bad TPS, but my rpm fluctuations aren't that bad, and like I said, don't make the tach move. It also will sometimes hesitate just a hair when taking off for the first time after starting.
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