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2011 Hyundai Sonata

5326 messages,  Last post on Feb 15, 2013 at 11:34 AM

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What is this discussion about? Hyundai Sonata, Future Vehicle, Sedan

Messages Page 486 of 534

#4845 of 5326 Stall on acceleration by golfman10

Feb 27, 2011 (12:01 pm)

I have a 2011 Sonata Limited with 1500 miles. A few days ago I accelerated hard on a hill to pass a slower moving car. The Sonata accelerated fine, but when it reached a certain point the engine stalled, the tach went to zero and the esc off light came on. The Sonata never upshifted. The Sonata never shut down completely, but as I sat on the side of the road it was idiling rough and the tach remained off and the esc off light on. After a restart everything was was back to normal. Re-created the same situation several times, once the engine warning light came on. Took the car to the dealer, they pulled the code (P0336) which indicated a malfunction of the crankshaft position sensor. They replaced the sensor. Did a hard acceleratin (to test) on the way home with same results. Car does the same thing on hard acceleration from a stop. Appears the transmission does not want to upshift after hard acceleration. Anyone had similar issues, if so how was the issue resolved.

#4846 of 5326 Re: Stall on acceleration [golfman10] by nickys

Feb 27, 2011 (12:30 pm)

Replying to: golfman10 (Feb 27, 2011 12:01 pm)
Can't help there. Mine up shifts smooth and quick at 6,250 RPM and I've been able to downshift to 4,250, but no higher.
 
All I can suggest is to try various combinations, ECO on/oof, w/ESC off/on, try manual shift anything to ty to hlp isolate what might be the problem.
 
Almost sounds like a short. Good luck

#4847 of 5326 Re: Stall on acceleration [golfman10] by dave868

Feb 27, 2011 (3:49 pm)

Replying to: golfman10 (Feb 27, 2011 12:01 pm)
Had similar but not identical situation. After hard acceleration the power just died and service and esc lights came on. Was able to idle and move about 5 mph. Restate did not help. Turned off traction control and engine would respond to throttle. However lights stayed on. Dealer replaced throttle body position sensor and all is well.

#4848 of 5326 Re: Stall on acceleration [golfman10] by jlflemmons

Feb 28, 2011 (5:29 pm)

Replying to: golfman10 (Feb 27, 2011 12:01 pm)
Take it back. Obviously the sensor wasn't the issue, but that doesn't mean the problem isn't in the circuit. Could be a connector contact not fully seated in the connector, or even a weak magnet in the the crankshaft (that is how a CPS works, it looks at the pulses generated by a magnet passing a Hall effect sensor).
 
This is a very common fail mode for a weak, but not dead sensor or magnet. And I will retract my earlier statement, it is entirely possible that the replacement sensor is also weak. It happens. And the description you give of the engine running fine after cycling the ignition is also a clue. Some faults are reset when the engine is turned off and restarted. The code is still stored in the memory, but the engine will run fine until it happens again.
 
GM had this same exact problem back in the 80's. Those were a bit more dramatic, though. You would be driving down the road and the engine would just quit. If you turned the key completely off, the engine would restart as though nothing had happened. If you tried to restart the car without first turning the ignition completely off, it would not restart.
 
Don't get down on your dealer yet. He changed the most likely cause of the fault. Now comes the fun part of determining if there is another issue in the circuit, or if the replacement part is also bad.
 
 

#4849 of 5326 Re: Stall on acceleration [jlflemmons] by golfman10

Feb 28, 2011 (5:37 pm)

Replying to: jlflemmons (Feb 28, 2011 5:29 pm)
Thanks for the info. I took it back to dealer this morning. Have a loaner until they figure it out and fix it.

#4850 of 5326 The left pull fix has been discovered by me! by nickys

Feb 28, 2011 (6:24 pm)

Here ya go:
 
http://www.hyundai-forums.com/t59891-i-came-up-wleft-pull-fix-but-hyundai-isn39t- - -interested.htm
 
Fifty lbs in the right rear trunk eliminated the left pull.
 
Believe it or not fact is stranger than fiction.
 
I advocate moving the battery and bracket from the left side under the hood to the right rear in the trunk.

#4851 of 5326 Re: The left pull fix has been discovered by me! [nickys] by abghar

Mar 01, 2011 (7:14 am)

Replying to: nickys (Feb 28, 2011 6:24 pm)
This cannot really be called a "Fix". To add unnecessary weight and carry that around all the time does not sound right. Moving the battery around is first not easy and second not the right approach.
 
Replacing the defunct strut, alignments, resetting steering settings & changing out tires with directional tires helps. At least it did help me.
 
At this time we are all stuck with the lefty car untill Hyundai comes out with an official recall and a permanent fix.

#4852 of 5326 Re: The left pull fix has been discovered by me! [abghar] by nickys

Mar 01, 2011 (10:54 am)

Replying to: abghar (Mar 01, 2011 7:14 am)
I've already addressed your weak claim in the Hyundai forum.
  
My fix is as valid and quite possibly more so than the Hyundai dealer fix.
  
Try being more pro-active in researching results, looking for answers instead of spreading negativity that you cannot defend.
  
Your fast and loose play w/word defunct is more than questionable due in part to the fact that there's nothing wrong w/left struts.
  
The replacement has an oblong mounting hole trying to squeeze more camber adjustment, but this doesn't disqualify the original strut or qualify it as defective.
  
Hyundai is attempting to use an altered strut to alter the front suspension geometry in order to compensate for something else.

#4853 of 5326 Re: MotorTrend: Bumpier Ride & Worse NVH Control in 2011 Sonata [mikemartin] by fdic47

Mar 01, 2011 (1:03 pm)

Replying to: mikemartin (Mar 02, 2010 8:26 am)
I have both a 2009 and 2011 Sonatas. My 2009 GLS is somewhat noisy. They replaced the exhaust system under warranty right after I leased it in 7/08. The noise just somewhat better. I've since purchased it for my daughter when the lease was up in 10/10 with 19,000 miles on it. I just leased a 2011 Sonata Limited 2.0 Turbo. There is no comparison between cars the 2011 is the finest car I've ever had. I've owned 26 cars. 8 Hyundais, 4 Nissans, 5 Toyotas, 2 Hondas, 1 VW, 2 Chevys, 1 Olds, 1 Pontiac, 2 Mercurys. Also 6 used cars and nothing compares to this 2011 Sonata.

#4854 of 5326 2011 Sonata left pull by tetovari

Mar 01, 2011 (1:15 pm)

After I waited 2 weeks for the new part to come I was at the service for 4 hours yesterday , they replaced the part that they thought it was defective , upgraded software and in the end the problem was still there , even worse than before . The menager said that they don't know what to do and they will contact hunday to find solution.
The mechanic said 3 out of 5 sonatas have the same problem .
I would never buy hyundai again .

Messages Page 486 of 534

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