I have sent my 2008 ES350, 47K to a dealer since it has a bit hesitation on accelerating; RPM goes upto 3K easily to get engaged to next one.
The dealer told me that no hardware problem but they did update a tranny firmware. They added that it may work right away or work after 3~4 fuelings.
What would be next step?
I have a 2007 LS 460 with about 50,000 miles. Some 18 months ago, at about 35,000 miles,right after a service, I began to experience hesitation/lack of power when accelerating from a stop. Lexus fixed this by doing a software update to the transmission.
All was well till last month, when again right after a service, the car hesitated and totally lacked power , most noticeable from a rolling stop. Revs would very gradually climb to 5,000, with foot flat on accelerator, yet car barely moving. Once speed built up to highway speeds, car reacted normally. Took it back to Park Place Lexus who held the car for 10 days and did a major job changing the cylinder head, I think per L-SB-0033-08.
A month later, the hesitation/lack of power is even worse then before! I suspect the issue is the transmission, and the big surgery on the engine done last month was not required. After nearly being hit trying to merge with traffic today, the vehicle is back at the dealership, and I took their head tech for a drive. He experienced the problem, but did not venture a solution. He told me they take instructions on what to do directly from Lexus.
I have owned this car for six months. The car now has 39K. The problem is getting worse.
Re: Lexus 2011 LS460 AWD
Subject: Hesitation / momentary loss of power when accelerating after turn.
When accelerating after a sharp turn with light to moderate acceleration, the car will have a momentary loss of power for about 1, 2, or even 3 seconds. This does not happen often, but perhaps once every two weeks and I cannot replicate the problem despite attempting to do so.
In all cases, I am talking about DRY pavement. It always happens after a sharp turn usually to the right. (Probably because most sharp turns are to the right actually it only happened once on a left turn that I will describe below.) Acceleration is light to moderate NOT hard acceleration.
In one case it caused a serious situation. I had just purchased gas and was entering a busy freeway. When accelerating, the engine had a total loss of power for a couple seconds as a large semi truck bore down on me with its air horns blaring.
I have a strong clue that may debug this problem. Once, when turning left, the car suffered a total loss of power. There was no traffic and I kept my foot lightly on the throttle. The car remained unresponsive. The engine did not stop, but it did not respond and remained this way for at least 5 seconds until I took my foot off the accelerator and then back on to the accelerator. During this period of suspended throttle, I noticed that on the right side of the dash an orange alert symbol was flashing I think it was a swerving car? I assume this indicated that the car was losing traction and the computer decided to cut power until traction was regained. But the pavement was dry, and the acceleration was normal. In no case did I ever sense that one of the wheels was slipping.
I have recently purchased a 2007 Lexus and just starting having a problem when trying to accelerate when I first start to car and try to move forward.
Basically I put the car in drive accelerate, the RPM is high but the car moves at a snails pace of at all.
Have owned a 2014 LS460 since April. Ever since then, when accelerating decelerating between 1000 and 3000 rpm, we hear a whining and grinding noise.
View 9 RepliesI have a 07 Camry LE. I recently replaced the belt tensioner and belt. A couple, maybe three weeks later its having symptoms of hesitation when accelerating and when at a stop. The rpm's are stable but seem to dip below its operating specification, causing the car to come to a wobble felt just like when you're in too low a gear when driving a standard vehicle. I suspect it may be air related but that's just a guess. I have not looked under the hood yet since its dark out and would like to get some feedback on this problem. Another probable cause I suspect is the fuel filter. The car has 113,000 miles and i doubt its ever been changed (I am the second owner).
Before I changed the tensioner I could be a stop and then suddenly press the accelerator to avoid oncoming traffic. The car will stall and die sometimes. It's has only done this to me on two occasions. Both at the same location. Rapid acceleration at this point was on an incline. If it matters.
Our 2015 es350 with 2,500 miles hesitates when accelerating from a dead stop, such as from a stop light. We are told this is to be expected with this vehicle. The dealership test-drove the car and say there's no problem. But this hesitation is unlike any other car we've experienced.
View 8 RepliesI traded in my 2015 for a 2016. I had the hesitation in my 2015 when moderately accelerating out of corners. So far in the last 1000 miles on my 2016, no hesitation.
View 2 RepliesI 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.
I have a 2010 RX350. Using my iPhone 5 with the bluetooth in the car is a little hit and miss/sluggish. When hitting the button for Siri, the car seems to struggle with the process.
I am curious if the firmware for the car is current... and if not, does a more current firmware update the bluetooth for better functionality. I haven't had it updated for almost 2 years. I do have navigation.
My dad recently bought a 2011... He says now there is a hesitation on acceleration?? Don't know if it was always like that or not he's owned the used car only a few months.
View 14 RepliesExperiencing a low speed transmission surge or hesitation when applying first applying the gas at parking lot speeds.? I especially notice it when traveling downhill or a slight decline. The motor revs as if in neutral then the transmission catches on. I mentioned it to the dealer at the 1000 mile check up and they said they could not find anything wrong. I'm getting ready to take it in for the 5000 mile service.
View 8 RepliesI 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?
View 12 RepliesMy ipod wakes up only 60% of the time when I start the car engine. For the other 40% i have to disconnect and reconnect the usb cable for a link to establish. I read somewhere that a firmware update can work but a firmware update seems to be bundled with a map update which I am reluctant to pay.
View 7 RepliesSo I have noticed a slight hesitation from a stand still. I press the gas and there is a slight delay(maybe less then a second) before something happens. It also does not do it every time, it is pretty random.
View 4 RepliesIt was the fuel. I had been experiencing a hesitation when going from a cruising speed...to WOT (wide open throttle) situations. The car would kind of just hang there for a couple of seconds, not really going anywhere. This situation was a bit - I wouldn't call it scary - but I would call it something I needed to be concerned/mindful of when pulling into traffic or switching lanes on a highway, etc....it made you have to take into account how much more space you'd need to do such a maneuver.
Well the problem is gone, it was the fuel. And it was my own fault. I was buying Super one week, then supplementing mid grade the next...mixing the two and lowering the octane level. Plus I was buying the gas at a station that was cheap. My logic was that I drive 600 miles a week...I'm trying to save a few bucks, etc...the guy I bought the car off of said he was doing the same thing with the fuel (and he's a Lexus tech)...and for the most part I didn't notice much of anything in loss of fuel mileage, etc.
The hesitation wasn't something that really bothered me because I usually don't find myself in situations where I have to mash the gas pedal into the floor, but I did want to know why the car was acting like that. After reading through a bunch of threads I came upon one post that said most of the time it's the fuel, but there is a reprogramming procedure as well. For me it was the fuel. I know others have solved an entirely different problem with the quality of their oil (TGMO).
So if you're going with a lesser grade of fuel...yes your miles per gallon won't really change...and no you won't be able to tell much of a difference...but don't be surprised if your car doesn't want to move in hard acceleration situations for a spell (I imagine it's the knock sensors kicking in).
Looking for your collective expertise
2007 E350 with 5.4L and 4R70W trans. 107K miles and the fluid has probably never been changed ( my mistake - thought it was 100K interval - finding out from my reading that is def not true ). Anyway, following is recent development (last couple days):
Symptom #1: In Park/Neutral there is a whine. As soon as you put it in P or N, the whine 'spins up', stabilizes, and does increase with engine RPM.
Symptom #2: Hesitation (albeit minor) when starting from stop in D and R, with _very_ minor shudder. Sometimes feels like it's struggling a bit to move its own weight just until it's rolling.
Symptom #3: Shudder when accelerating in OD. No shudder when I turn off OD. It does not stop when applying brakes (a test suggested elsewhere). Also, the shudder does not happen when applying gas while braked in D at standstill. Only at highway speeds (enough to be in OD).
This all started at the end of a trip (90 miles or so in 85-90 degrees) when I was pulling a utility trailer (maybe 2000 lbs loaded). Not sure if related, but traction control warning went off a couple times. I think I have a axle seal leak that may be triggering that.
Otherwise shifts fine (no change in shift behavior or smoothness). Things seem to be worse when it has heated up. Should I start with a fluid change? Wasn't sure because there are comments out there saying don't do it or the tranny will just fail faster (I am skeptical).
Picked up a 2014 IS 350 F Sport (ultra white with red interior if curious) and have been having a blast with it over the weekend. One thing I noticed yesterday though was some transmission whine when accelerating, I drove it home about 25 miles so the tranny and engine where plenty warm and checked the fluid, and between the two indicators it was touching the bottom dot.
If I remember correctly this should be an accurate reading while the engine and transmission is hot, or am I remembering wrong?
I've noticed since yesterday that my engine has become really loud when accelerating - obnoxiously loud. Best way of describing it is it's taken on that "muscle car" sound when accelerating which I'm not a fan of. I've had company in the car and they've asked if I've "made the car louder". It also seems to be a bit more sluggish at accelerating.... either that or I'm subconsciously afraid to accelerate and push it too hard. I topped it off with oil because it was a bit low and that didn't make a difference. It is however, just about time for an oil change... could this play a factor? [URL]..................
View 11 RepliesI noticed the RPM's are higher than they used to be when accelerating slowly.
My car is an awd hybrid 600h with a CVT (110.000 miles) .. Do i have to check the transmission fluid? How?
Is my clutch or whatever it's called dying?
My car is still under warranty, but I'm not sure if wearable parts are included.
I've got a used '07 gs350.. Unfortunately I bought it without doing any computer scanning to find out the faulty parts..
After I bought it I found the check vsc and check engin lights are on ! The car is skidding while I start accelerating, Nothing controls it!
I did the scanning and they told me there is an open circuit in the O2 sensor. That was right they welded the wires and the lights went off for about two days then they came back again!
I took it to them and they did the scan again. The codes are p0430 and p0420. I think they are related to catalytic converter.. They said it has leak in the EVAP system.
Does this has any deal with the Gad Cap ?! Is it really the issue is caused by the catalytic converter !!!