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2007 Toyota Camry Transmission Questions

882 messages,  Last post on Jan 19, 2013 at 9:48 AM

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What is this discussion about? Toyota Camry, Transmission, Sedan

Messages Page 84 of 89

#827 of 882 Re: 2007 camry 4cylinder trans [mcdawgg] by sunilv

Aug 13, 2008 (11:43 am)

Replying to: mcdawgg (Aug 12, 2008 9:18 pm)
I have done all the TSB released for transmission issues. I have done the latest TSB and it is better now than ever before. But the problem for me I feel a jerk in 1st and 2nd shifts. I asked the Dealer to test it and they just reset the Computer memory and asked me to drive about 50 miles with stop and go in slow traffic roads. I thought when I did the TSB it will reset the memory. Will it?
Now even after 150 miles my car jerks in 1st and 2nd shifts. My car is a 07 Camry 4 Cyli Auto Trans bought in 2006 Apr.
 
Is there any problem with my torque conertor or transmission? Please help me anyone, bcos I want to ditch this car if it is going to be fixed after my warranty expires.

#828 of 882 by leinie

Aug 24, 2008 (11:15 am)

I purchased a used, '07 Camry LE 4 cylinder (30K, built in 5/07) last week, and I like the car very much. After driving for awhile, I noticed that it does seem sluggish/hesitant when I let off the gas (rather than slowing down smoothly, there is a slight "bucking"), and then bucks slightly but picks right back up when I step on it (however smoothly) again. I realize this isn't really the same problem that so many others seem to have experienced with the transmission, but is this just a characteristic of the '07 transmission, or is it something that can be addressed by this TSB? It just seems like it should be a smoother transition from letting off the gas and stepping on it again.

#829 of 882 Re: [leinie] by mcdawgg

Aug 24, 2008 (4:21 pm)

Replying to: leinie (Aug 24, 2008 11:15 am)
Take it in for the TSB - it is free, and only takes 30 minutes. Makes a huge difference in performance. TSB0068-08

#830 of 882 Re: 2007 camry 4cylinder trans [sunilv] by santocs

Aug 25, 2008 (8:44 am)

Replying to: sunilv (Aug 13, 2008 11:43 am)
Sunil,
 
I am also facing the same problem. Most of the transmission issues are resolved after the TSB but the jerk when its shifting from 1st to 2nd gear is still there.
 
Cruise has improved, The hesitation has gone (except in first to second gear).
 
Am i correct?
 
anybody any clue what could be done for this problem?

#831 of 882 Re: 2007 camry 4cylinder trans [sunilv] by wwest

Aug 25, 2008 (8:56 am)

Replying to: sunilv (Aug 13, 2008 11:43 am)
Your transaxle is of a relatively new design, circa about 1998, that is capable of "real-time" reduction/control of the ATF line pressure, and thereby increasing FE not insubstantially. I have no doubt that you could provide a circuit to constantly "push" more electrical current into the PWM solenoid controlling the line pressure but absent the engine/transaxle ECU "knowing" the line pressure always remains adequate to support a gearshift and/or fully and firmly engage clutches under high drive torque stress the modification would be of little help.
 
And absent being of a reasonable level of help it would be needless to have to add the extra ATF cooling capacity the modification would undoubtedly require.
 
Apparently that's what was done with the '01 to '03 RX300's and even with the extra ATF cooling capacity provided by the towing package it still resulted in overheated ATF indications in as little as 40,000 miles.

#832 of 882 RE: TSB by leinie

Aug 29, 2008 (2:08 pm)

I had the TSB done today...I can't say I noticed a LOT of difference in the way the car behaves. Is it really true that the car needs to "learn" the way I drive, and it will adjust and probably be better after that?

#833 of 882 RE: TSB by leinie

Aug 30, 2008 (9:59 am)

Also, what are the chances the problems will come back?

#834 of 882 RE: TSB [leinie] by mcdawgg

Aug 30, 2008 (4:12 pm)

Replying to: leinie (Aug 30, 2008 9:59 am)
The problem won't come back, it is a program change, it can't just put in the old program! The TSB has been out for 4+ months, and everyone has been VERY happy since - enjoy your car!

#835 of 882 RE: TSB [leinie] by wwest

Aug 30, 2008 (4:28 pm)

Replying to: leinie (Aug 30, 2008 9:59 am)
Entirely possible...

#836 of 882 RE: TSB by leinie

Aug 31, 2008 (12:08 pm)

Is the dealer "required" to place the sticker under the hood stating that the update has been done? I have the work order stating that it was done, but there is no sticker under the hood...I know I don't have a reason to doubt that it was actually done, but as stated earlier, I didn't notice any immediate change in the acceleration/deceleration, so I'm hoping this is just because the car is still adjusting to my personal driving habits...

Messages Page 84 of 89

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