[arzelee]

Hi MDXERS!

Purchase a YD3 but unfortunately after driving the vehicle for 4k mileage a rod or bearing spun out. I'm not sure if this a common issue among the J35Y5 series as the mileage is around 95k with all maintenance up to date with dealer checked up at the time of purchase. Water pump replaced, timing belt, idle and pulley, transmission flush, serp belt, alternator, and agm battery were all replaced with penz oil syn plat 0w20 using mobil 1 filter. No error codes or high temperatures when this all happened so I'm lost as to why this happened as oil is golden brown with no metal shavings or what not.

Recap:
Purchased at 90k FWD Advance pkg

Maintenance at dealership:
water pump
timing belt
idle and pulley
trans flush
serp belt and alternator
agm battery

home:
oil change
brake fluid flush
filters replaced for air and cabin

Reference: AAA tow man.. to what he describe a rod knock or spun bearing after removing the beauty cover and feeling the valve cover around

Is there a possible issue using the 2022 J35Y5 engine or any other years as the dealership want to use the same year engine with a price tag of 10k for the repair.
[]

Thanks all.

 

[mdxstang]

What year is the MDX?

I haven't seen a single other post in this 3rd gen forum (2014 - 2020) regarding a bearing issue or any other internal engine issue and many of these are over 100K miles now, including my 2014 (around 104K).

Before jumping straight into an expensive engine change, have it diagnosed by a decent mechanic. A tow guy who just listened to it isn't who I'd rely on for an accurate diagnosis or potential solutions.

Maybe it's something else - like something related to the timing belt or timing tensioner or a pulley (even though the TB had been changed).

If it ends up needing a new engine I'd stick with the same base engine, which would be 2014-2020 but could include other restrictions. Sticking with the same year eliminates some uncertainty. I wouldn't even attempt a 2022+ engine since they're not the same.

It's worth considering a used engine from a junked vehicle and having a decent independent mechanic install it - that'd save thousands. Ditto with a remanufactured engine that sb higher than used but cheaper than what the dealer would install.

Please let us know how it goes.

 

[arzelee]

Hi mdxstang!

this is for 2018 mdx and I wasn't sure as the dealer mentioned the engines are exactly the same with the 3.5 L J35Y5 V6 (YD9/YE1) /2022&2023 vs 3.5 L J35Y5 V6 (2014-2021) but will run into issue with the main ecu from the difference in transmission. Planning to have another mechanic come out to look at it but its depressing to get all kind of issues with honda/acura

 

[mdxstang]

^^ I thought I read that the engines were somewhat different but I could be mistaken on that so let's assume they're the same as the dealer mentioned (who should know a lot more than me on this topic).

Hopefully the problem will be something other than a bearing issue and won't require a replacement. Make sure you get a good mechanic familiar with Honda engines to diagnose it.

 

[arzelee]

hopefully so... my crv is a champ when comparing to this mdx in reliability issues

 

[96firephoenix]

I haven't seen a single other post in this 3rd gen forum (2014 - 2020) regarding a bearing issue or any other internal engine issue and many of these are over 100K miles now, including my 2014 (around 104K).

didn't you reply on my thread about the engine dying in my 2014?

For reference, this was at 196K miles.

2014 down for the count

well, wife called from the side of the road wednesday. MDX is flashing all manner of alerts, consistent with a dead battery. horrid shrieking sounds coming from the belt drive. Needs a jump Add those up, and it's a bad alternator, right? Well, it still makes the same shrieking with the...

www.mdxers.org

 

[mdxstang]

didn't you reply on my thread about the engine dying in my 2014?

Yes and I almost referred this OP to your thread - which means I need to modify my response to 'I've only seen one other thread about an internal engine issue'.

Thanks for the catch.

There's a major difference though - your engine has double the miles on it that the OP's has, even though that's no excuse for your engine to fail.

Maybe you have some good suggestions for the OP given what you've done with yours.

 

[datechboss101]

Hi MDXERS!

Purchase a YD3 but unfortunately after driving the vehicle for 4k mileage a rod or bearing spun out. I'm not sure if this a common issue among the J35Y5 series as the mileage is around 95k with all maintenance up to date with dealer checked up at the time of purchase. Water pump replaced, timing belt, idle and pulley, transmission flush, serp belt, alternator, and agm battery were all replaced with penz oil syn plat 0w20 using mobil 1 filter. No error codes or high temperatures when this all happened so I'm lost as to why this happened as oil is golden brown with no metal shavings or what not.

Recap:
Purchased at 90k FWD Advance pkg

Maintenance at dealership:
water pump
timing belt
idle and pulley
trans flush
serp belt and alternator
agm battery

home:
oil change
brake fluid flush
filters replaced for air and cabin

Reference: AAA tow man.. to what he describe a rod knock or spun bearing after removing the beauty cover and feeling the valve cover around

Is there a possible issue using the 2022 J35Y5 engine or any other years as the dealership want to use the same year engine with a price tag of 10k for the repair.
[]

Thanks all.

Other than 96firephoenix MDX failing at 196k miles I haven't heard of the J35 failing this early. Do you have the service history on the vehicle? If so, what was the interval of each OC?

Yes you could slap in the J35 from the 4th gens, but it needs to be programmed to notice one less gear in the transmission. Not sure if the dealer will do this, but try to shop around and see if someone else in your local Honda community can do this engine swap.

 

[ijaz_97]

Other than 96firephoenix MDX failing at 196k miles I haven't heard of the J35 failing this early. Do you have the service history on the vehicle? If so, what was the interval of each OC?

Yes you could slap in the J35 from the 4th gens, but it needs to be programmed to notice one less gear in the transmission. Not sure if the dealer will do this, but try to shop around and see if someone else in your local Honda community can do this engine swap.

I wouldn't say it's common but it's not unheard of. There are plenty of stories of people having rod bearing failure with the MDX and TLX in their respective Facebook groups. Try joining the Acura MDX group on Facebook and search for "rod bearing" and you'll see a few posts of this happening.

Here are a few examples on other forums:

Spun bearing at 60k miles

Spun Bearing - 95K - Looking for Advice | 2016 TLX -...

Hey All - First post. Looking for advice. 2016 TLX - 3.5L w/ Tech package. Purchased in 2017 with 7K miles (as new); added extended warranty that expired July 2021. SPUN BEARING CAUSING INTERNAL DAMAGE; METAL SHAVING IN OIL PAN + AND IN OIL; ENGINE REPLACEMENT NEEDED Replacement: 98K used...

www.tlxforums.com

2019 TLX V6 AWD - Engine Seized Up - AcuraZine - Acura Enthusiast Community

5G TLX (2015-2020) - 2019 TLX V6 AWD - Engine Seized Up - Hey everyone recently bought a new 2019 TLX A-Spec AWD about 2 months ago. And yesterday evening on my way home from work the engine just took a crap on me and seized up in the middle of an intersection. (talk about embarrassing) The car...

acurazine.com

https://www.reddit.com/r/Acura/comments/10knf7c

 

[mdxstang]

I wouldn't say it's common but it's not unheard of. There are plenty of stories of people having rod bearing failure with the MDX and TLX in their respective Facebook groups. Try joining the Acura MDX group on Facebook and search for "rod bearing" and you'll see a few posts of this happening.

With millions of these engines produced there are certain to be some number of them that end up with a rod bearing issue (and most other issues you can think of). Some of these will be due to neglect, like not changing the oil/filter with the specified oil at the specified interval, low oil levels, and some will be due to manufacturing defects in the bearings or elsewhere.

As to whether a rod bearing issue is any more common on the J35 than any other V6/V8 engine would require access to a lot of statistics.

In reading through the links you included as well as this one from the OP it seems a number of these were experienced by people who bought the vehicle used so they have no idea of the real previous history on oil changes, whether they were done correctly, whether there was an oil leak at some point that caused a low oil level condition, etc.

I hope we hear back from the OP as to more details on his issue.