Question about Hyundai Sonata

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Automatic transmission not shifting gears

I have a 2006 Hyundai Sonata, 6 cyl. auto. with 122k miles. The problem is that when the car is put in gear, either reverse or drive, it acts like its in neutral- the engine revs, but the car doesn't move for a few seconds, then eventually goes into gear. This seems to happen more often when the engine is cold. Coincidentally, this started happening a few weeks after the car was in an accident- it was rear ended. Took it to the hyundai dealer and they said it needs a new tranny. I saw a video on youtube in which the owner found that something was spilled on the gearshifter- he cleaned the electrical connections and it was fixed. Coincidentally, when my car was rear-ended, a cup of coffee was spilled on the gearshifter and all over the interior. The guy on the video had a different issue, though- when his car was put in drive, it would go into 2nd gear, but would not shift at all, unless he put it in manual mode- then it would only downshift, but not upshift.

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  • Hyundai Master
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What you say is possible and should be check out as well. Run fault codes and look for faulty TCM and torque converter clutch solenoid and servo. IT would not hurt to have a pressure test done on the transmission as well to see it and mechanical damage was done in the accident as if there was it will be claimable from the accident

Posted on Feb 15, 2014

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6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 1 Answer

SOURCE: I bought a 2000 Hyundai

The input and output transmission sensors may be bad. My car had this malfunction. I replaced the sensors and have had no more problems.

Posted on Jul 21, 2008

  • 2 Answers

SOURCE: Transmission or Engagement issue?

I had the same problem with my 2006 Forenza - the problem was the transmission range sensor. If you look under the hood, on the drivers side, you'll see your trans. cable connected to a round part that also has an electrical cable coming from it. That is it. Part costs $36.07 at oemsuzukiparts.com (search for Neutral safety switch in the mechanical catalog).


Posted on Aug 22, 2009

  • 1 Answer

SOURCE: 2006 Chevy Cobalt Tranny issues (automatic) no 4th gear!

I had the same problem but eventually lost reverse. Had to get a new transmission... $2,300.00

Posted on Mar 23, 2010

honeymokey
  • 3113 Answers

SOURCE: 2000 buick lesabre transmission - high rpm's in 1st to 2nd gear

SHift solenoid pressure switch

Posted on Jun 06, 2010

afarri
  • 1386 Answers

SOURCE: 2006 Hyundai Sonata, 3.3 L

Hello and welcome to FixYa!
You may just have system failure. As a first course of action, I strongly suggest that you remove the positive battery connector and let it sit for at least 5mins. before reconnecting it. This will reset the system and can get it back to it's normal operation.
If the problem still persists, I believe that you will need to have the torque converter replaced. This can be caused by a faulty or worn out torque converter as well.
Hope this helps and thank you for using FixYa! Have a good one!

Posted on Sep 04, 2011

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