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Daughters engine is being replaced for excessive consumption of oil. For those people that have had this done, did the use a long block, with heads, or a short block, where the just put the old head on the new block?
 

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Discussion Starter #3
Thank you.
 

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Not all of the members, I just got my 2011 2.0T back this week and I have a brand new short block. To answer OP question I received mine after being down for a two weeks with a brand new short block, everything on mine was replaced aside from the alternator and throttle body.
 

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Not all of the members, I just got my 2011 2.0T back this week and I have a brand new short block. To answer OP question I received mine after being down for a two weeks with a brand new short block, everything on mine was replaced aside from the alternator and throttle body.
A short block doesn't include the head, so are you saying they used the head off the old engine? Don't think they would do that.
 

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2017 Sonata Sport 2.0T
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Not all of the members, I just got my 2011 2.0T back this week and I have a brand new short block. To answer OP question I received mine after being down for a two weeks with a brand new short block, everything on mine was replaced aside from the alternator and throttle body.
You are the first to post a short block exchange, all of the others to my memory were long blocks. But you also said "everything else was replaced except the throttle body and alternator. So did you get heads, water pump etc? If so then they did along block.

One of our old members (has not posted in a while now) that is a Hyundai tech said they went long block do to labor rate to do a short block vs a long block as well as job quality. Problems can happen if they go short block and then swap out the heads or other parts and they need replacing or soon after the exchange need replacing which can cause more customer problems.

This thread is going strong in the YF section since there are a lot more of them with engine problems than the LF especially 2017 and up rarely have been reporting problems.
All of them are long blocks Oil consumption tests completed....Results are in...
 

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Not all of the members, I just got my 2011 2.0T back this week and I have a brand new short block. To answer OP question I received mine after being down for a two weeks with a brand new short block, everything on mine was replaced aside from the alternator and throttle body.
That sounds suspiciously like you got a long block
 

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2017 Sonata Sport 2.0T
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That sounds suspiciously like you got a long block
I agree. It makes no sense to reuse the old head. If the engine failed due to brg damage, there could be metal debris trapped in head oil passages. Plus the extra labor to remove, clean, inspect, and reassemble the old head.
 

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2011 Hyundai Sonata Limited, 2.4L
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My 2011 Sonata was totaled this week, just a few months after getting the engine redone by Hyundai. Sad, but it is what it is.
I'm looking at sticking with the Sonata, but want to be clear of this engine issue so thought I'd check out the LF sub-forum. I'm surprised to hear that it wasn't just a first year issue and seems to have lingered up to 2017. After that, are we clear of it or too soon to tell? TIA.
 

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My 2011 Sonata was totaled this week, just a few months after getting the engine redone by Hyundai. Sad, but it is what it is.
I'm looking at sticking with the Sonata, but want to be clear of this engine issue so thought I'd check out the LF sub-forum. I'm surprised to hear that it wasn't just a first year issue and seems to have lingered up to 2017. After that, are we clear of it or too soon to tell? TIA.
You are right I have heard problems as late as 2017. I'm surprised that the 2021 Tucson still uses the 2.4 Theta 2 engine. I think your better off with the Theta 3 non turbo in the base Sonata (the latest generation) that is dual injected, port and direct so it wouldn't have carbon issues. But then again, why take a chance with a new engine design in its first year of production.
 

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I’ve read of one or two failures on the 2017MY Theta II’s. For +2018MY I haven’t heard of any failures. There was someone recently that had 120,000miles on a 2018 and inquired about excessive oil consumption but that has been all.
 

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My 2011 Sonata was totaled this week, just a few months after getting the engine redone by Hyundai. Sad, but it is what it is.
I'm looking at sticking with the Sonata, but want to be clear of this engine issue so thought I'd check out the LF sub-forum. I'm surprised to hear that it wasn't just a first year issue and seems to have lingered up to 2017. After that, are we clear of it or too soon to tell? TIA.
Seems as though Hyundai has some concerns:
Engine Monitoring Technology
In an effort to continually improve our product, Hyundai has developed new engine monitoring technology called a “knock sensor detection system.”
The technology enables the detection of potential early engine issues caused by excessive bearing wear. The technology will be installed free of charge on 2011-19 Sonata, 2013-18 Santa Fe Sport, 2019 Santa Fe, 2014-15 & 18-19 Tucson, and 2019 Veloster N vehicles through a free software update performed by any Hyundai dealer.
 

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Theta III Smartstream 2.5L GDI + MPI DOHC 16-valve Inline 4-cylinder, Continuously Variable Valve Timing (CVVT)
Oh you’re talking about the new SmartStream family of engines. These are new clean sheet design engines.
 

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2011 Hyundai Sonata Limited, 2.4L
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I believe that's just an aid to deal with the problem (as they said, excessive bearing wear). Rather than the engine suddenly seizing, it will degrade so that you can pull over, etc.
As it seems this issue is latent in the Theta IIs, and I really am not up to beta-testing a clean sheet design, I decided to go with another car brand. 😔
 

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2014 LF1 Sonata Premium 2.0T & 2014 DM1 Santa Fe Elite 2.2 CRDI
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My engine was replaced with 15,000 km's on it before I owned it, due to scored cylinder walls (I don't know what lead to this eg. excessive noise or whatever). I found out from a friend who works in a dealer warranty department so only got limited information.

They replaced only the short motor, and sublet the cylinder head to an engine specialist to be checked. Wish they did a long motor as there is some small oil weepage around the timing cover area
 

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I believe that's just an aid to deal with the problem (as they said, excessive bearing wear). Rather than the engine suddenly seizing, it will degrade so that you can pull over, etc.
As it seems this issue is latent in the Theta IIs, and I really am not up to beta-testing a clean sheet design, I decided to go with another car brand. 😔
Wish it worked that way. Friend's 2013 Optima 2.0T, blinking cell came on in Baltimore and made it back to Jersey albeit 2000 rpm max,
however, son in law's 2017 Santa Fe, cel came on and 9 miles later the engine seized while he was on the way home. He was on a 2 lane road,
no shouler, so the vehicle was blocking one lane of traffic, and just to add, it was raining.
 

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Wish it worked that way. Friend's 2013 Optima 2.0T, blinking cell came on in Baltimore and made it back to Jersey albeit 2000 rpm max,
however, son in law's 2017 Santa Fe, cel came on and 9 miles later the engine seized while he was on the way home. He was on a 2 lane road,
no shouler, so the vehicle was blocking one lane of traffic, and just to add, it was raining.
So the santa Fe didn't even go into limp mode? Was the car shaking and vibrating the whole time?
 
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