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Sedans Lexus ES Transmission problems with Lexus ES?
1381 messages, Last post on Nov 26, 2009 at 12:56 PM
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Replying to: user777 (Jul 15, 2007 3:58 am) The only thing left is the Stearing, brakes and ignition and even with those these days you can't be sure there isn't some ECU firmware in the control loop, especially with the ignition "control" key. Some of the newer VSC systems even have the ability to "assume" control of the stearing inputs.
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Replying to: wwest (Jul 15, 2007 9:12 am) ECM/PCM/TCM i don't know.
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Replying to: user777 (Jul 15, 2007 3:08 pm) It most certainly would not "allow" a shift into reverse.
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Replying to: wwest (Jul 15, 2007 6:16 pm) i did recommend the poster contact the NHSTA didn't I? http://www-odi.nhtsa.dot.gov/ivoq/ it could be like the airbus crash at the paris airshow... test pilot performs a low-altitude manuver that the engineers didn't anticipate in the programming of the system and the engine controls usurp pilot authority when he attempts to go full throttle (to make it over the trees). he didn't make it. if the transmission is programmed NOT to go to "N" at high rev, coupled with a sticky accelerator / non-linearity in sensing / or a confused throttle body servo, then that is one scarey scenario. you've got to be able to decouple the engine from the drivetrain if speed is increasing. turning off the vehicle to "reset the electronics" is  now then, one would think it *may* be possible for the vehicle to be checked under controlled conditions again. but who would want to do it. oh how wonderful if not repeatible, huh? now, speaking for myself, and not trying to be alarmist, if i had an uncontrolled event like that which could not be pin-pointed / addressed, i'd be immediately dumping the vehicle, loss and all.
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Replying to: user777 (Jul 16, 2007 2:46 am) Or to be quite fair, the gas pedal may have been stuck under the carpet mat, like has happened to me twice, once many years ago and again just two years ago. Carpet mat "draped" over the gas pedal but behind the brake pedal, the harder you brake the more the engine ROARS.
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Replying to: wwest (Jul 16, 2007 7:57 am) still, you have to be able to disengage the transmission. it's suicide if you can't.
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Replying to: user777 (Jul 16, 2007 8:06 am) Like I stated before, I no longer try flooring the gas pedal in any circumstances.
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Replying to: gavrik (Jul 16, 2007 8:47 pm) thanks for confirming it wasn't an issue with the mats. also good to know you shut the thing down at or near zero speed when you started taking off again... like i said, powering everything down is dangerous, but you did it at a more controllable condition than at speed. ultimatley, we're glad you are ok!!! i STRONGLY suggest you contact the NHSTA and put in an entry for your VIN. |
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Replying to: shepali (Dec 11, 2005 7:37 pm) My next option looks to be in the court but I've been doing whatever I get it fixed. Any ideas/suggestions would be appreciated! thanks! |
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Replying to: 1matt1 (Jul 23, 2007 6:28 pm) My '92 ES300 started these same symptoms about a month ago. running at 40-45 MPH when the accelerator is pressed it shutters like you ran over a dog or something. I see allot of people have this same problem. I've had this car for over ten years... why would this problem just pop up now?
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