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SUVs Toyota RAV4 Toyota RAV4 Throttle Lag
79 messages, Last post on Aug 11, 2009 at 7:38 PM
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My RAV4 2007 actually kicks out of gear on deceleration/re-acceleration, for stoplights, tight turns and heavy stop and go traffic situations. It revs up to about 2000 rpm before it engages when I accelerate to proceed. This is a 1-3 second hesitation that I am told is normal for these vehicles...something about a bypass? Does anyone know about it? I was told originally, after the dealer re-set the computer, it was my driving causing the problem. They re-set it again and I had my husband, who drives entirely different from myself, drive it. Still it did the same thing. Finally the dealer had the manager, tech ride with me to see what was happening ( another tech actually took it home overnight). All gentlemen agreed there is a problem, but stated there are no bulletins or other complaints so they cannot do anything about it. I am now dealing with Toyota who said, as a complete surprise to me, that the dealer told them there is not a problem. I am very happy with most everything else about this vehicle. It is one of the best, most stable vehicles I have ever owned in snow, ice and slick conditions. It drives nicely and gets pretty good fuel mileage. But this transmission concerns me. Please respond with any information you might have concerning this condition. If it is 'normal', is there somewhere to look that explains the condition and what it is doing? If, as I have been told and believe, it is not normal, does anyone have experience or advice for me? Thank you
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Replying to: goose602 (Dec 01, 2008 3:55 pm) wwest hesitation abolition dbw -dfg As of '08 Toyota has tried out a new fix, revised engine/transaxle ECU firmware that tries to determine the driver's "future" intent based on the rate at which the gas pedal is released. FAST, equaling/implying a coastdown intent and therefore the transaxle will more likely remain in the current gear ratio. Slow letup thereby implying an intent to enter cruise, constant speed mode, therefore an upshift if appropriate.
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Replying to: wwest (Dec 02, 2008 10:39 am)
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Replying to: goose602 (Dec 02, 2008 7:45 pm)
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Replying to: wwest (Dec 03, 2008 10:11 am)
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Replying to: goose602 (Dec 04, 2008 7:59 pm) Custom Body Electronics Systems....... |
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| We noticed that this issue became progressively worse over time. The dealership told us that the car is programmed to "adapt" to our driving style. (We also noticed this same lag when we test drove Foresters, so Toyota is not the only manufacturer employing this "advancement".) The dealership wiped the "memory" and the problem disappeared. Of course, it is slowly returning. If there is a more permanent fix out there, please submit the service bulletin number and we can all have our RAV-4's fixed. Thanks. | |
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Replying to: applebee (Jan 29, 2008 9:31 am)
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| Lot's of luck with your dealer who will probably try to tell you that you had your foot on the accelerator instead of the brake. Problem is you can't duplicate the problem to demonstrate it. Also the black box thing will have no record of it. If you're successful in getting it fixed, please share the secret. | |
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Replying to: mike375 (Jun 28, 2009 9:32 am) |
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