Lexus LS 2007+ :: Transmission Completely Disengaged And No Downshifting At All
May 25, 2012
I have a 2009 that seems to have issues in the lower gears, I think that I have a transmission issue.
When I'm coming to a stop, I feel the transmission downshifting from about gear 3. It's not wildly jerky or abrasive, but it's not smooth either (or I wouldn't feel it). When it downshifts, after it engages (or torques down for lack of a better term) it feels as if it releases a bit, which makes me have to compensate with harder braking (again, not saying I am slamming on the brakes, but I have to brake harder so it doesn't feel like I am now going to coast into the car in front of me). It doesn't feel like the transmission is going to take off on its own, but it definitely feels like it has a certain threshold it wants to stay above.
In the loaner I have (RX), when coming to a stop the best way I can describe it is it feels like the transmission has completely disengaged and I feel NO transmission downshifting at all. The only way I get this type of braking in my LS is if I throw it into Neutral and take the transmission out of the loop. On the way to the dealership this morning to drop it off for other issues, I was at a stop light and went to accelerate and it felt as if it skipped a gear because I was stalled for a second (acceleration wise, not that the engine turned off) before it took off as it should. Also my acceleration seems to be a little hesitant when starting off .
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When approaching a red light, if I take my foot off the gas to coast, it feels as if the transmission 'downshifts' at around 30mph. I can't actually feel the transmission shifting but there is a definite slowdown in speed, not just a gradual slowdown. Is this normal? I ask as doing the same in the '04 RX it does not do this.
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Upshifting is fine, downshifting gives me a big thud. Bigger from 3rd-2nd smaller 2nd-1st (I think).
2006 GS430. 120k or so miles.
Dealership replaced solenoid #2, but now say I need a whole new transmission.
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Heard a clunk and then have the car feel like something from the inside is trying to stop it when using the paddle shifters in manual mode. Specifically when downshifting from 2 to 1. By the way I did a slight throttle blip, I have done this before with very smooth results but this time it really scared me, I though the transmission broke for a second; when the car did what it did.
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I have a 07 Ls460. When downshifting from second to first there is a click that is sometimes a clunk. Lexus has replaced the trans with no change. They have cleaned and lubricated rear suspension bolts and replaced the rear shocks and springs and the differential mount. Again, no change.
This started at about 80k and continues at 123k. They have checked motor mounts, transmission mount and repacked the driveshaft spline. When the car is lifted into the air and the weight is off the suspension the noise will go away for a few days.
This noise has also been heard occasionally when rolling off the gas between 20/30 mph and then reapplying throttle. Lexus mechanics and area reps are at a loss to diagnosis. I have driven a 2008 loaner and it had the same noise.
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I have a 2007 LS460 and one issue I have, which could be costly unless I'm paying attention, is the cruise control does not perform automatic downshifting like my Honda does. In fact, my speed can increase by about 10-15mph going downhill, which a couple of times I've been lucky to realize my speed is increasing and downshifted manually and sure enough there was a speed trap. I really don't like driving by luck, if you know what I mean.
Is there something that is causing this? I do not recall that it has ever worked correctly...
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I have an LS600hl (2008) that has behaved spectacularly well, except until recently when it started to deplete the key fob battery fast! I resorted to replacing the batteries once a week (yes it was that bad). that was up until today when the car refused to start completely. Everything in it is dead, including the horns.
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"VSC" warning light...my car is completely dead, with warning light "VSC". Other than what the acronym Vehicle Stability Control stands for, I don't know what the issue is or what VSC is relating to. I can't get my car started to take it in for diagnostic testing.
The car is 2008 Lexus IS 250.
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My 2007 Lexus ls460L is completely nonresponsive to anything. The key won't work and it won't lock on unlock from inside the car either. How would I go about resetting the engine immobilizer?
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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?
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Lost overdrive. Shifts when o/d disengaged. Dropped pan, valve body and found that the servo retaining ring is still intact but the small clip for the center shafts of the servo was broken. Found it loose on the valve body along with a flat piece of metal shaped like half of a hexagon. 3 sided shape, approximately 1 inch each side. Like one 6 inch piece that's folded together. Don't know where that came from. Afraid to put back together without knowing where that came from. Was founded right next to the broken clip. 2007 f150 4.6 4x2 ....
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Recently purchased a certified 2011 Lexus ES350 with navigation. I noticed that when pressing the mode button on the steering wheel, the radio toggles from AM, FM1, FM2, and Bluetooth, but completely skips satellite radio. The satellite radio is active and I set presets for all the stations. I can access the satellite radio stations fine when pressing the button on the dash or on the touch screen but the mode button on the steering wheel completely skips the satellite selection.
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VW replaced my entire transmission and it still jerks into gear when downshifting to a stop or hitting the gas hard while coasting!
Also, I swear there is now binding while turning a la moteur stepper. New tranny. New rear drive shaft. Allegedly new transfer case (I cannot confirm this though). New new new programming. And still the darned thing vibrates by butt with a downshift that a Bettle with 300,000 miles on the clock would not dare make.
Any reference to the operation of the transmission and the sequencing of the various clutches and other coupling devices with respect to gear selection and engine conditions?
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I've been driving my wife's sonata to work this week and notice as I start to slow down at around 20MPH the car almost surges a little bit. Maybe I am not diagnosing it correctly but it's almost like it's downshifting rough.
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When coming to a quick stop the transmission has a shutter upon downshifting the shutters when you accelerate quick off of a stop light or stop sign. Also quick left hand turn hear a clunk coming from left side wheel. 2015 Sonata Sport 2.4L
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I took my Phaeton in for a transmission noise and they are saying it's "normal" for V8 Touaregs and Phaetons to have this noise on downshifting under acceleration from 4th to third at around 40 MPH. Yes?
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When I am going about 55 my transmission sometimes starts downshifting and then up shifting again for no reason.
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My freshly rebuilt C6 with Transgo shift kit and Hughes 2500 stall converter won't downshift until I'm nearly at a dead stop. My Cruisomatic did the same thing in stock form. I roll up to an intersection and the light is green. I slow way down to negotiate the turn. I then throttle when headed straight and the tranny is still in Drive. It does the same thing when slowing way down for speed bumps. Could the shift kit or stall converter affect downshifts?
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Have an unfortunate circumstance. '03 Camry XLE 4cyl with 188k on it and the trans just went crazy. Was on the interstate and it started downshifting. Wouldn't stay up in the gear it was before and eventually wouldn't go out of 1st or 2nd gear.
Haven't had shifting issues in the past and trans fluid has been changed regularly at no more than 30k mile intervals.
Worst part is that this was on the way to vacation, so the car was towed to Ft. Walton Toyota. They are saying the trans is slipping and it needs a rebuild. Seems very odd to me that the issue would come on this fast with no earlier signs. A valve cover gasket was replaced a couple weeks ago, but I don't see how that could be the cause.
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Sot he automatic transmission has never downshifted correctly for me in my "01 Hyundai Accent 1.6. I am on my second tranny, but they both never downshifted properly. For it to do so, you have to come to a complete stop for it to get back to first gear. If not it kind of bangs into first. Either that or it will dog out in third once you hit the gas, but will go into first. With my first transmission, I replaced the fluid and filter and it still did it. This second transmission has about 60k miles on it with new fluid/filter and does it.
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My daughter has a 2010 Sonata with a 4 cylinder and an automatic transmission. She is pretty frustrated with an intermittent problem. Every once in awhile, especially if the engine is cold, the car jerks while slowing down. She believes it is the transmission when it down shifts. I have driven the car and have not been able to duplicate the problem myself. The dealer recently changed the mapping for the transmission in hopes that would work but it hasn't. The dealer hasn't been able to duplicate the condition either.
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