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Hyundai Sonata Transmission Questions

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

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What is this discussion about? Hyundai Sonata, Transmission, Sedan


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#141 of 155
Re: Poor Transmission Shift in 09 Sonata (6700 miles) [bigredtx] by dave868
Apr 21, 2009 (5:45 pm)
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Replying to: bigredtx (Apr 21, 2009 1:38 pm)

I felt the same way till last February. The 1-2 shifts will killing me. Hard acceleration was ok, but gentle acceleration was like a bucking bronco. My dealer did a firmware upgrade and now I am happy. You can still feel the shifts but just barely..
 
Hang in there... the dealer can fix it.
#142 of 155
Re: Poor Transmission Shift in 09 Sonata (6700 miles) [bigredtx] by dandaroy
Apr 21, 2009 (8:03 pm)
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Replying to: bigredtx (Apr 21, 2009 1:38 pm)

big red,
 
Have you done the TCM update? I did and still I have the problem.
#143 of 155
Re: Poor Transmission Shift in 09 Sonata (6700 miles) [dave868] by dandaroy
Apr 21, 2009 (8:04 pm)
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Replying to: dave868 (Apr 21, 2009 5:45 pm)

Dave,
 
I did the TCM firmware upgrade and it is still bothersome.
#144 of 155
Re: Poor Transmission Shift in 09 Sonata (6700 miles) [dandaroy] by dave868
Apr 26, 2009 (6:17 pm)
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Replying to: dandaroy (Apr 21, 2009 8:04 pm)

Sorry to hear that. I guess I got lucky. I can sympathize. I started to really hate my car. I bought it Oct 08 by Feb when I got the update... I was ready to sell it.
 
All I can say is that since I got the update I am happy with the car.
#145 of 155
Re: Poor Transmission Shift in 09 Sonata (6700 miles) [dave868] by dandaroy
May 01, 2009 (3:28 pm)
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Replying to: dave868 (Apr 26, 2009 6:17 pm)

Did it completely eliminate your harsh shift or reduce intensity? For me it reduced the intensity, but it is still there. Especially on the 1 --> 2 shift when I go in stop and go traffic. When I gently tap on the gas to get the card going, once it hits about 10 mph or so, the 1 -> 2 shifts a bit roughly. When I step on the gas moderate or hard it is not there. Go figure!
#147 of 155
SonataGLS-07 Transmission doesn't engage in Drive by Vinnieudv8
Jun 16, 2009 (6:14 pm)
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Have 30K mi on a 2007 Sonata GLS. Experienced a recurring problem with transmission starting at 25K miles. Automatic transmission doesn't engage for 10 minutes when shifted into Drive. I can shift into Rev and it engages immediately. This occurred twice when the car is first started, once when stopped at a stoplight and the transmission disengaged for 2-3 minutes. When this happens, the shifter is in Drive, transmission is disengaged, the drive gear indicator will blink rapidly R-D-R-D-R-D......R-D as if it can't decide if it is in Rev or Drive. Also, when this happens, there are electrical anomolies ...the dash lights, radio and clock led's blink in unison with the turn-indicator, turn-indicator flashes faster than usual. Shut the car off for a while and everything seems OK, transmission engages and shifts fine. First time, dealer replaced tranny range sensor and no problem for 6 months. Second time, dealer replaced sport mode switch, but problem recurred within a week. On third occurrence, dealer can't find any problems. Will try talking to another dealership/mechanic and see what they can find. Anyone have similar problems???
#148 of 155
Re: SonataGLS-07 Transmission doesn't engage in Drive [Vinnieudv8] by newowner10
Jun 17, 2009 (5:32 am)
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Replying to: Vinnieudv8 (Jun 16, 2009 6:14 pm)

You should try another dealer. With all that is going on the problem is not with the transmission. You could have a bad ground. How would the transmission effect the turn signals unless the ground is feeeding back thru the lamps and clock. If you explain all of this to a knolegable person they should know where to start.
#149 of 155
Re: SonataGLS-07 Transmission doesn't engage in Drive [newowner10] by Vinnieudv8
Jun 17, 2009 (10:49 am)
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Replying to: newowner10 (Jun 17, 2009 5:32 am)

Thanks newowner10. Appreciate your thoughts on this. I've emphasized the electronics whacking-out when the problem occurs. A bad ground would do it.
#150 of 155
Re: SonataGLS-07 Transmission doesn't engage in Drive [Vinnieudv8] by mikemartin
Jun 17, 2009 (11:31 pm)
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Replying to: Vinnieudv8 (Jun 17, 2009 10:49 am)

Hyundai seems to be really dropping the ball on quality lately. If you go to Hyundai Forums, there are a lot of people still having problems with the front and now rear suspension, plus a ton of electrical and transmission problems are now surfacing.
 
I hate to see this happen because Hyundai seemed to be making great strides for a while there.
 
Let's hope they get back to making progress and fixing current issues.

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