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2010 Hyundai Santa Fe 3.5L Tranny Issues #4779293 06/06/18 03:38 PM
Joined: Oct 2012
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Egg_Head Offline OP
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Above vehicle is part of the family fleet, 86K miles and transmission fluid has been changed at 30K and 60K miles. This car has hard up shifts and downshifts intermittently, manufacture date falls within units that had possible bad shift solenoids. I have a can of Sea Foam Trans Tune and a bottle of Lubegard Platinum, my question is which one might[i][/i][u][/u] help mitigate this problem or should I just go light a candle?


1979 Garelli Rally Sport
2009 Cub Cadet LT1042
2002 BMW 540 M Sport (totaled)
2011 MB E350 4Matic wagon
1979 CJ-7
1978 K-5 Blazer 400ci
Re: 2010 Hyundai Santa Fe 3.5L Tranny Issues [Re: Egg_Head] #4779312 06/06/18 03:59 PM
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Propflux01 Online Crying
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Is it not still on the 10 year 100K warranty?

And what fluid was used during those changes?


2014 Hyundai Elantra
2014 Hyundai Elantra GT

A 55 Gallon Drum And A Shovel Can Solve A lot of Life's Little "Problems"
Re: 2010 Hyundai Santa Fe 3.5L Tranny Issues [Re: Egg_Head] #4779315 06/06/18 04:01 PM
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JohnnyJohnson Online Content
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Doesn't that car have the Hyundai 10 year 100K warranty?


2004 Corolla 136143
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2006 Duramax 76552
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In: T6 5W-40 XG9100 73705 4-22-18
Re: 2010 Hyundai Santa Fe 3.5L Tranny Issues [Re: JohnnyJohnson] #4779322 06/06/18 04:07 PM
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Egg_Head Offline OP
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2nd owner, Castrol Transmax full syn multi-vehicle atf


1979 Garelli Rally Sport
2009 Cub Cadet LT1042
2002 BMW 540 M Sport (totaled)
2011 MB E350 4Matic wagon
1979 CJ-7
1978 K-5 Blazer 400ci
Re: 2010 Hyundai Santa Fe 3.5L Tranny Issues [Re: Egg_Head] #4779324 06/06/18 04:08 PM
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VeryNoisyPoet Offline
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Confirm whether there is a recall, or if it falls under warranty. How often do the problems occur, as in are they frequent enough that the technician could replicate them?


1998 V70 GLT / 202k miles [10w-30 Valvoline Syn w/ Maxlife Tech + Mann W917 filter]

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Re: 2010 Hyundai Santa Fe 3.5L Tranny Issues [Re: Egg_Head] #4779329 06/06/18 04:14 PM
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JustN89 Offline
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I would at least try to get it worked on under warranty. Try a dealership and make an appeal to corporate if necessary.

Here's Hyundai TSB 14-AT-012 the speaks to shift solenoid troubleshooting. I would take this with me to the dealership.

Last edited by JustN89; 06/06/18 04:24 PM. Reason: TSB included
Re: 2010 Hyundai Santa Fe 3.5L Tranny Issues [Re: Egg_Head] #4779432 06/06/18 06:14 PM
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wemay Online Happy
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100k mile warranty falls to 60K for second owner. Just in case.


2018 KIA Sportage LX 2.4 AWD:
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2013 Hyundai Santa Fe Sport 2.0T:
EDGE EP 5W30, PH9688
Next: GTX Magnatec 5W30, OEM
Re: 2010 Hyundai Santa Fe 3.5L Tranny Issues [Re: Egg_Head] #4779973 06/07/18 09:23 AM
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Boss302fan Offline
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If the computer updates do not work on your SF, then most likely the tranny will need to be replaced. The products you mentioned will do nothing to improve your tranny issues... If still under warranty, make sure you lean on the dealer ASAP and get it fixed.


John P
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