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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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#142 of 155 Re: Poor Transmission Shift in 09 Sonata (6700 miles) [bigredtx] by dandaroy Apr 21, 2009 (8:03 pm)
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)
Replying to: dave868 (Apr 21, 2009 5:45 pm) Dave,   I did the TCM firmware upgrade and it is still bothersome. Replies to this message: dave868 (Apr 26, 2009 6:17 pm) dandaroy (May 01, 2009 3:28 pm)
#144 of 155 Re: Poor Transmission Shift in 09 Sonata (6700 miles) [dandaroy] by dave868 Apr 26, 2009 (6:17 pm)
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. Replies to this message: dandaroy (May 01, 2009 3:28 pm)
#145 of 155 Re: Poor Transmission Shift in 09 Sonata (6700 miles) [dave868] by dandaroy May 01, 2009 (3:28 pm)
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)
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??? Replies to this message: newowner10 (Jun 17, 2009 5:32 am) Vinnieudv8 (Jun 17, 2009 10:49 am) mikemartin (Jun 17, 2009 11:31 pm) Vinnieudv8 (Jun 18, 2009 7:28 am)
#148 of 155 Re: SonataGLS-07 Transmission doesn't engage in Drive [Vinnieudv8] by newowner10 Jun 17, 2009 (5:32 am)
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. Replies to this message: Vinnieudv8 (Jun 17, 2009 10:49 am) mikemartin (Jun 17, 2009 11:31 pm) Vinnieudv8 (Jun 18, 2009 7:28 am)
#149 of 155 Re: SonataGLS-07 Transmission doesn't engage in Drive [newowner10] by Vinnieudv8 Jun 17, 2009 (10:49 am)
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. Replies to this message: mikemartin (Jun 17, 2009 11:31 pm) Vinnieudv8 (Jun 18, 2009 7:28 am)
#150 of 155 Re: SonataGLS-07 Transmission doesn't engage in Drive [Vinnieudv8] by mikemartin Jun 17, 2009 (11:31 pm)
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.
#151 of 155 Re: SonataGLS-07 Transmission doesn't engage in Drive [Vinnieudv8] by Vinnieudv8 Jun 18, 2009 (7:28 am)
Replying to: Vinnieudv8 (Jun 17, 2009 10:49 am) Newowner10 gets the gold-star for his tip. Third time was charmed. Dealer found the electrical ground was missing a bolt. Said the ground was not properly installed at the factory. Interesting that it took 25K miles for a grounding problem to surface. Thanks Chaps!

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