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Vans & Minivans Toyota Sienna Toyota Sienna Hesitation
26 messages, Last post on Nov 28, 2009 at 6:27 PM
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I just bought 2008 Toyota Sienna on February and experienced the hesitation when I tried to accelerate my vehicle after slowing down at the intersection at the speed between 5 to 10 mph. When I stepped on the gas at the speed I mentioned above, the engine seemed to roar up, but my car didn't move, and for a few second later it took off. It is intermittent. I had it serviced at the dealer I bought it from, but did not find any thing wrong. And I've been told by a few people including a service manager at the dealer that it is normal. They kept telling me that the new Toyota Siennas are computerized connecting the gas pad to the fuel injection. Because the signal has to move from the pad to the computer and to the fuel injection, that why a few second delay occured. I'm not a mechanic, but I know enough to understand how the computer works. Yes, there is a delay between touching the keyboard and printing data on the monitor. But as a users or the drivers, the delay should not be noticable. The service manager told me the specialist from Toyota come to dealer once a month and will have them checked my 08 Sienna. I also reported this issue to Toyota customer support. They documented the problem on my car and will set up to have my car checked at the dealer. It've been almost a month already, I have never heard any thing from them. I just want to know if there are any 08 Toyota Sienna owners out there have experienced the same problem as I do. |
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Replying to: johnsienna (May 21, 2008 10:35 pm) Search/Google for: wwest dbw hesitation abolition
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Here is my conspiracy theory on this matter: http://townhall-talk.edmunds.com/direct/view/.f169148/7 That's just my opinion, though. 
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Replying to: wwest (May 22, 2008 8:29 am)
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Replying to: johnsienna (May 26, 2008 6:47 pm) My guess is that if the '08 owner/driver's can learn to adapt to this new feature the firmware "fix" might be made backwards compatible. The best answer is probably the one that Ford has chosen for the Edge, a variable displacement ATF pump, but that, most definitely, would not be backwards compatible. |
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Replying to: johnsienna (May 21, 2008 10:35 pm) |
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Replying to: johnsienna (May 21, 2008 10:35 pm)
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My 05 Sienna hesitates usually when accelerating after coming out of a turn. Originally, they said the computer may need to be reset. Later, dealer said they did not find a problem but now it is getting worse. Any advice?
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Replying to: arodory (Feb 20, 2009 6:58 pm)
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