Anyone else think the Tau v8s were Hyundai's best engines of all time?

[Genesiswonderer]

Title? I certainly think so. They were just really good engines. They had good performance with decent efficiency, were really smooth and refined, and they were some of Hyundai's most reliable engines, especially the 4.6. I am certainly sad to see them go, and it honestly makes me want to 5.0 swap a 2023 G90.
Any thoughts are appreciated! Have fun discussing y'all!

 

[rhegroup1]

Title? I certainly think so. They were just really good engines. They had good performance with decent efficiency, were really smooth and refined, and they were some of Hyundai's most reliable engines, especially the 4.6. I am certainly sad to see them go, and it honestly makes me want to 5.0 swap a 2023 G90.
Any thoughts are appreciated! Have fun discussing y'all!

I bought my '15 5.0 in '17 with 19K miles on it. I have roughly 47K on it now and I have only had to get the front brakes done. It was too quiet for me so I had the muffler and resonators removed and used a glasspak muffler instead. I am often getting comments about how great it sounds and I'm glad I did it. I really didn't get even 25K miles from the original continental tires that came with it and I'm noticing that the rear tires go before the front two. I'm really not impressed with not being able to rotate all the tires but at least the rear two can be. I thought that I would have already sold it by now to upgrade to a newer model. I looked at the G90 from 2020, and it looks like a limo because it seems so much bigger than my car. I thought that the G90 was the replacement for my 5.0 sedan, but it looked a lot bigger than mine so I decided to keep my current car. I don't know if I will ever let it go

 

[5.0KDM]

I bought my '15 5.0 in '17 with 19K miles on it. I have roughly 47K on it now and I have only had to get the front brakes done. It was too quiet for me so I had the muffler and resonators removed and used a glasspak muffler instead. I am often getting comments about how great it sounds and I'm glad I did it. I really didn't get even 25K miles from the original continental tires that came with it and I'm noticing that the rear tires go before the front two. I'm really not impressed with not being able to rotate all the tires but at least the rear two can be. I thought that I would have already sold it by now to upgrade to a newer model. I looked at the G90 from 2020, and it looks like a limo because it seems so much bigger than my car. I thought that the G90 was the replacement for my 5.0 sedan, but it looked a lot bigger than mine so I decided to keep my current car. I don't know if I will ever let it go

I believe you can run a square setup on them so you can rotate the tires.

Title? I certainly think so. They were just really good engines. They had good performance with decent efficiency, were really smooth and refined, and they were some of Hyundai's most reliable engines, especially the 4.6. I am certainly sad to see them go, and it honestly makes me want to 5.0 swap a 2023 G90.
Any thoughts are appreciated! Have fun discussing y'all!

hell ya i bought mine used with 79k im at 95k now and it still pulls strong

 

[Charlie1982]

I've only ever owned one Hyundai, and that's the Genesis 4.6 that I bought less than a year ago. So, not a lot of experience yet, but it seems like a sweet little powerplant, so far.

I've driven/ridden in a couple of their smaller cars, but they seemed decent for the size of motors they had. I still nearly have to shake my head in amazement occasionally, thinking about how far Hyundai progressed especially from the late '90s to around 2010...

 

[mtrot]

Our 2012 Genesis 4.6 now has 136,000 miles on it and it runs like a scalded cat. We've never had to do anything to the engine other than when I changed the plugs, which I'm not sure I even needed to do because the plugs that came out looked fine. Wait, I did get the alternator replaced one time.

Amazingly, it's still on the original brakes and there is not a hint of rotor warp. And the suspension feels just as tight as when it was new. I've never seen a car's brakes and suspension hold up like this car. I feel like they used really good metals for the rotors and suspension components. My GM vehicles don't seem to last more than about 35,000 miles before the rotors warp and the suspension starts to get loose.

 

[carguy75]

Title? I certainly think so. They were just really good engines. They had good performance with decent efficiency, were really smooth and refined, and they were some of Hyundai's most reliable engines, especially the 4.6. I am certainly sad to see them go, and it honestly makes me want to 5.0 swap a 2023 G90.
Any thoughts are appreciated! Have fun discussing y'all!

I believe the TAU engines are some of Hyundai best engines. I have not taken one a part. But the design layout for common high mileage failure parts like the water pump and timing chain tensioners are easy to access. Even the oil pump is a fairly easy job compared to some of the other engines I opened up(LS,3MZ-FE,etc) based on the service manual.

The 5.0 engine only had one issue that I am aware of; it was from a bad batch of piston rings from a supplier in 2012 not an engine design fault. Hyundai really designed a great family of TAU engines; especially the 5.0 V8 that improved on the 4.6 weak areas(timing chain system).

Hopefully, the newer force induction engines are as reliable as the V8 engines with high mileage(over 100k miles).

 

[radi0]

Our 2012 Genesis 4.6 now has 136,000 miles on it and it runs like a scalded cat. We've never had to do anything to the engine other than when I changed the plugs, which I'm not sure I even needed to do because the plugs that came out looked fine. Wait, I did get the alternator replaced one time.

Amazingly, it's still on the original brakes and there is not a hint of rotor warp. And the suspension feels just as tight as when it was new. I've never seen a car's brakes and suspension hold up like this car. I feel like they used really good metals for the rotors and suspension components. My GM vehicles don't seem to last more than about 35,000 miles before the rotors warp and the suspension starts to get loose.

At what mileage did the alternator fail?

 

[carguy75]

I believe the TAU engines are some of Hyundai best engines. I have not taken one a part. But the design layout for common high mileage failure parts like the water pump and timing chain tensioners are easy to access. Even the oil pump is a fairly easy job compared to some of the other engines I opened up(LS,3MZ-FE,etc) based on the service manual.

The 5.0 engine only had one issue that I am aware of; it was from a bad batch of piston rings from a supplier in 2012 not an engine design fault. Hyundai really designed a great family of TAU engines; especially the 5.0 V8 that improved on the 4.6 weak areas(timing chain system).

Hopefully, the newer force induction engines are as reliable as the V8 engines with high mileage(over 100k miles).

Correction: I have taken a 5.0 Tau engine apart(cracked lower timing cover) with 90k miles and my engine looks good as new on the inside. I do perform 4k mile oil changes on it with 5w-30 oil. The timing chains are tight, the timing chain guides looks good with hardly any wear and the engine purred when it ran.

I would have to say the 5.0 Tau engine is built and designed very very well.

My engine internals at 90k miles with 4k mile oil changes. Looks most new.

 

[EdP]

Correction: I have taken a 5.0 Tau engine apart(cracked lower timing cover) with 90k miles and my engine looks good as new on the inside. I do perform 4k mile oil changes on it with 5w-30 oil. The timing chains are tight, the timing chain guides looks good with hardly any wear and the engine purred when it ran.

I would have to say the 5.0 Tau engine is built and designed very very well.

My engine internals at 90k miles with 4k mile oil changes. Looks most new.

Really amazing engineering and manufacturing. That is only a portion of the parts that have to work together at thousands of rpms.

 

[PMCErnie]

Betamax tapes were great too, in their day.

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[mtrot]

At what mileage did the alternator fail?

132,255

 

[carguy75]

Correction: I have taken a 5.0 Tau engine apart(cracked lower timing cover) with 90k miles and my engine looks good as new on the inside. I do perform 4k mile oil changes on it with 5w-30 oil. The timing chains are tight, the timing chain guides looks good with hardly any wear and the engine purred when it ran.

I would have to say the 5.0 Tau engine is built and designed very very well.

My engine internals at 90k miles with 4k mile oil changes. Looks most new.

Note: The oil pump is not easy to repair!!!! I stand corrected about that remark made in post#6. The oil pump on the 5.0 Tau engine requires the lower front timing cover, front sub-frame and both oil pans be removed to access it and remove it from the timing chain system.

The oil pump on the 5.0 Tau engine. Not easy to get to as I first thought.

 

[carguy75]

Really amazing engineering and manufacturing. That is only a portion of the parts that have to work together at thousands of rpms.

So true of any modern day engine. The modern engine is an engineering wonder for sure. Hyundai's Tau engine is very fine example of an modern engine done right.

 

[carguy75]

I am not sure how many members in this forum are engine heads like myself, but I will state an observation that I like about the 5.0 tau engine.

The 5.0 Tau engine used roller cam followers on the high pressure fuel pump that smoothly rides the camshaft lobe when operating the high pressure fuel pumps. Many other engine makers like Audi/VW and Nissan uses a cam tappet follower on the lobes that wears down due to impact with the camshaft lobe and actually wear down the camshaft lob over time if it is not changed. The roller type last much longer since it rolls over the lobes.

Little details like this makes the 5.0 Tau a long lasting engine. The roller cam followers from my 2015 5.0 engine with 90k miles is good as new.

Issues that occur with other makes high pressure fuel pumps

 

[jonlereux]

I am super happy with my 2012 and ended up buying a 2015 5.0 as well.
The 5.0 has been very reliable, other than higher oil consumption. That being said, I am getting up there in mileage with my 2012 5.0. Can anyone tell me what the difference is between the 2012 and 2020 5.0 engines?
Have any changes been made to block, heads etc. that I should be aware of? I am looking to perform a rebuild, but parts are hard to come by. If the newer 5.o's are the same, it gives me a a bigger pool of parts to choose from.
Any input is appreciated.

 

[carguy75]

I leaned from research that the upper front timings covers and VVT actuators are different on the newer 2017+ 5.0 engine than on the 2012-2016 models. The older style VVT actuators are smaller slimmer units and the new style are larger round disc units. The 2017-2020 5.0 engine appear to use the same parts overall. The big change occurred in 2017. However, parts like the 2020 lower timing cover is listed to fit the 2015 5.0 models and some other parts look the same as well.

The 2012 5.0 engine does not seem to be able to use the same upper or lower timing cover as the 2015-2020 models as it has different part numbers and seals.

 

[jonlereux]

I leaned from research that the upper front timings covers and VVT actuators are different on the newer 2017+ 5.0 engine than on the 2012-2016 models. The older style VVT actuators are smaller slimmer units and the new style are larger round disc units. The 2017-2020 5.0 engine appear to use the same parts overall. The big change occurred in 2017. However, parts like the 2020 lower timing cover is listed to fit the 2015 5.0 models and some other part look the same as well.

The 2012 5.0 engine does not seem to be able to use the same upper or lower timing cover as the 2015-2020 models as it has different part numbers and seals.
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Thanks for information! I will have to dig into what additional changes have been made. What’s the best resource for part information? I do encounter a strange rattle sound at startup occasionally and would like to resolve it without going to the stealership; guess it is to be expected with over 170k on the odometer…

 

[carguy75]

Thanks for information! I will have to dig into what additional changes have been made. What’s the best resource for part information? I do encounter a strange rattle sound at startup occasionally and would like to resolve it without going to the stealership; guess it is to be expected with over 170k on the odometer…

No problem.

I use a combination of the online OEM part website I listed in my previous post to view diagrams for parts and their location as well the Hyundai service manual for instructions. So far so good.

It is hard to find any repair information on a 5.0 Genesis(new or old models); so you got to do some leg work to figure out the repairs yourself. Very rare car it seems to own and maintain.

 

[jonlereux]

No problem.

I use a combination of the online OEM part website I listed in my previous post to view diagrams for parts and their location as well the Hyundai service manual for instructions. So far so good.

It is hard to find any repair information on a 5.0 Genesis(new or old models); so you got to do some leg work to figure out the repairs yourself. Very rare car it seems to own and maintain.

I am finding out that the lack of information out there is one of the downsides of owning one if you plan on performing repairs on your own. I will look into getting additional information online. Thanks

 

[carguy75]

I am finding out that the lack of information out there is one of the downsides of owning one if you plan on performing repairs on your own. I will look into getting additional information online. Thanks

No problem.

My biggest issue and concern about keeping my 2015 5.0 is part availability. Hyundai seem to have an issue with many 5.0 parts being back-ordered(transmission connectors, timing covers, and other specific parts); which concerns me since the Genesis has very little aftermarket support as an alternative.

Hyundai made the 2015-2020 Genesis/G80 a very reliable and well engineered car, but the 5.0 engine part supply is very very limited which makes owning one a real concern since it could take weeks to months for much needed parts to become available. Hence why I may just sell or trade my 2015 5.0 when I finish repairing it(cracked front timing cover). Still debating on it.