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New 2007 Toyota Sienna needs transmission

56 messages,  Last post on May 12, 2009 at 11:04 AM

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#51 of 56 Re: Steve [stevecrouch] by adm6902 Jan 17, 2009 (3:19 pm)
Replying to: stevecrouch (Apr 06, 2008 3:23 am) I have a similar problem with my 2008 Sienna. If I slow down to about 5 MPH, the engine revs up as if the transmission is disengaged or maybe downshifting too soon. Also, the same will happen when I come to a stop. Instead of lugging the engine to slow down, it acts like it comes out of gear and is freewheeling.   I would think they could reprogram the transmission to change how / when it downshifts.
#52 of 56 how bad is it? by tlw6 Jan 19, 2009 (2:16 pm)
Asking for advice: I have an old car. The engine shut off on the highway. My son panic'ed and shifted the transmission (automatic) to P while braking. So, the car moved for a distance while the gear is in P before stopping. As a result, I lost the Reverse gear, the car won't back out. How bad is the problem? Does this mean that I need a new trans? Thanks in advance for any advice.
#53 of 56 2007 Sienna Engine Knocking Issue by nw_in_x Jan 21, 2009 (8:21 pm)
Since the day I bought my 2007 Sienna in May 2007 I have noticed a knocking noise when the accelerator is pressed. The noise continues until the engine reaches 2,000 RPMs. The noise also stops after the engine is warmed-up.   The sales person who sold me the vehicle stated that all the 2007 Sienna's make the same noise. A mechanic I know; who owns a 2006 Sienna, stated that it sounds like one of the "lifters is sticking." If I accelerate too quickly, the vehicle almost sounds like a diesel (until I get over 2K RPMs). Not sure if this issue has been addressed in the past (on this board), any feedback is appreciated. Replies to this message: ateixeira (Feb 03, 2009 12:00 pm) byumikec (May 12, 2009 11:04 am)
#54 of 56 New transmission on 2009 Sienna by nws_reader Jan 29, 2009 (8:07 am)
Since the early miles, we noticed hesitation when switching gears. There was evident delay when switching. This got worse and worse and by 600 miles, the car would not go in 'D'. Had to manually switch to 2 and 3 to get it going. Dealer got us a 'new remanufactured' transmission It's running very well now.
#55 of 56 Re: 2007 Sienna Engine Knocking Issue [nw_in_x] by ateixeira Feb 03, 2009 (12:00 pm)
Replying to: nw_in_x (Jan 21, 2009 8:21 pm) My engine doesn't sound like that at all.   It is a chain-driven camshaft so there may be more noise than the old belt-driven cams on the 3.3l, but definitely no knocking.   My trans hesitates a little bit, our 2009 Forester's 4EAT is much more responsive.
#56 of 56 Re: 2007 Sienna Engine Knocking Issue [nw_in_x] by byumikec May 12, 2009 (11:04 am)
Replying to: nw_in_x (Jan 21, 2009 8:21 pm) Mine does the exact same thing. However it only does it when it is cold outside and only for 5 minutes at the most. I had the Toyota dealer look at it and the mechanic said that they all did that and that there was nothing wrong with it. The van had about 30k miles on it when I took it in.

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