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Hyundai Sonata Transmission Questions

155 messages,  Last post on Oct 13, 2009 at 12:20 PM

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#1 of 155 2006 Sonata Shift Oddity by mepjap65 Jul 24, 2007 (3:38 pm)
I recently purchased a 2006 Sonata V6, pre-owned with around 28000 miles. It seems like a nice, dependable car (I bought it primarily for my wife to use). One thing about its driving characteristic seems unusual, however, and I would like to know if it's common with this year/model; if anyone else has experienced this or if it might be a transmission problem. When accelerating from a stop at a steady increase in speed, the shift from 1st to 2nd seems to "lag", almost like there's a noticeable pause between shifts and for a brief second the car feels like it decelerates before accelerating again. The sensation is very slight and hard to really describe accurately, but it's there, enough to be noticed. I heard that these cars have throttle-by-wire and I don't know if that has any relation to what I'm describing. Does anyone have any ideas or comments? Replies to this message: targettuning (Jul 25, 2007 6:51 am) craigbrooks (Jul 25, 2007 7:10 pm) bhmr59 (Jul 25, 2007 7:13 pm) and 1 more... tkumpf (Oct 18, 2007 3:39 pm) tonycar (Jul 28, 2008 3:35 pm)
#2 of 155 Re: 2006 Sonata Shift Oddity [mepjap65] by targettuning Jul 25, 2007 (6:51 am)
Replying to: mepjap65 (Jul 24, 2007 3:38 pm) I don't believe this "lag" to be a problem however it is a known issue and I believe Hyundai has issued a TSB to reflash the transmission control module to minimize or eliminate this. I do not have the TSB number at the moment but may be able to locate it if I have the time but your local Hyundai service dept. will know what to do if you explain/complain. Replies to this message: craigbrooks (Jul 25, 2007 7:10 pm) bhmr59 (Jul 25, 2007 7:13 pm) craigbrooks (Jul 25, 2007 7:24 pm)
#3 of 155 Re: 2006 Sonata Shift Oddity [targettuning] by craigbrooks Jul 25, 2007 (7:10 pm)
Replying to: targettuning (Jul 25, 2007 6:51 am) Mine has the lag or had it. I don't really notice it anymore. I wasn't aware of a TSB for this. I know others have it and I guess I just got used to it. Replies to this message: bhmr59 (Jul 25, 2007 7:13 pm) craigbrooks (Jul 25, 2007 7:24 pm)
#4 of 155 Re: 2006 Sonata Shift Oddity [craigbrooks] by bhmr59 Jul 25, 2007 (7:13 pm)
Replying to: craigbrooks (Jul 25, 2007 7:10 pm) Question--not an answer.   Could this "lag" be related to different drivers and the tranny trying to adjust to those different drivers? Replies to this message: craigbrooks (Jul 25, 2007 7:24 pm)
#5 of 155 Re: 2006 Sonata Shift Oddity [bhmr59] by craigbrooks Jul 25, 2007 (7:24 pm)
Replying to: bhmr59 (Jul 25, 2007 7:13 pm) not in my case. only driver of my car.
#6 of 155 Hyundai Sonata transmission shifting by douglasc Jul 27, 2007 (11:55 am)
Is it normal for a 2006 Sonata V6 transmission to delay slightly on the first to second shift (when compared to the other shifts)? Is it normal to have it hunt looking for the proper gear when traveling easily at 40 mph? Replies to this message: jlindh (Jul 27, 2007 12:51 pm) craigbrooks (Jul 30, 2007 6:04 pm)
#7 of 155 Re: Hyundai Sonata transmission shifting [douglasc] by jlindh Jul 27, 2007 (12:51 pm)
Replying to: douglasc (Jul 27, 2007 11:55 am) There are a lot of previous posts on these items. I would suggest doing a search.
#8 of 155 Re: Hyundai Sonata transmission shifting [douglasc] by craigbrooks Jul 30, 2007 (6:04 pm)
Replying to: douglasc (Jul 27, 2007 11:55 am) the 1st to 2nd gear lag is common. I used to notice it everytime when I first purchased mine but don't notice it all now. It's a "new" car thing. Different from what you were used to driving. Happens to us all.
#9 of 155 High rpm concern with 4 cylinder by geofw Oct 06, 2007 (6:57 am)
I'm thinking of buying a 4 cylinder standard transmisson Sonata.   I have a 2005 Tucson. It has an rpm of 3,000 at around 60 mph. Needless to say, it gets noisy at higher speeds. At the same speed, my 1995 Camry is about 500 rpm lower. I can go around corners in 3rd gear without any problem.   Anyone notice the same problem with say, 2007 or 2008 Sonatas? Replies to this message: xebra (Oct 06, 2007 7:13 am) geofw (Oct 06, 2007 7:53 am)
#10 of 155 my experience by xebra Oct 06, 2007 (7:13 am)
Replying to: geofw (Oct 06, 2007 6:57 am) 55mph on highway --> 2000rpm 60mph " " --> 2100rpm   20-30mph climbing hill --> 2000rpm to 3000 rpm. Replies to this message: geofw (Oct 06, 2007 7:53 am)

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