3rd gen transfer case oil change

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Old Sep 27, 2020 | 02:17 PM
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3rd gen transfer case oil change

Anyone done the transfer case fluid yet-?
im ready to do just having trouble locating the fill and drain plugs-
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Old Sep 27, 2020 | 05:05 PM
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The transfer case is right next to the ATF pan and exhaust pipe. You have to remove engine undercover and rear undercover. This is the hardest part with all the clips and bolts to remove. I will do the ATF and transfer fluid next week. Just did the rear differential this weekend.

Last edited by ToniRDX19; Sep 27, 2020 at 05:07 PM.
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Old Sep 27, 2020 | 05:44 PM
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Was under there today and found the fill plug I think but did not see any other plugs
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Old Sep 27, 2020 | 06:38 PM
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Anyone got a quote from a dealer to do transmission fluid change and transfer case fluid? Just curious.
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Old Sep 28, 2020 | 10:22 AM
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Originally Posted by russianDude
Anyone got a quote from a dealer to do transmission fluid change and transfer case fluid? Just curious.
This is a quote from my local Schaller Acura in CT.

ATF is not due until 60k miles so I will not service mine although I bought the fluid last week. I might do it at 30k when the transfer case fluid is due.

ATF : $350 parts and labor
Diff: $90 + tax
Transfer case: $90 + tax (due at 30k)
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Old Sep 28, 2020 | 02:20 PM
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Originally Posted by ToniRDX19
This is a quote from my local Schaller Acura in CT.

ATF is not due until 60k miles so I will not service mine although I bought the fluid last week. I might do it at 30k when the transfer case fluid is due.

ATF : $350 parts and labor
Diff: $90 + tax
Transfer case: $90 + tax (due at 30k)
Not surprised ATF is so expensive, its not simple.

are you sure transfer is not at the same time as ATF?
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Old Sep 28, 2020 | 07:20 PM
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I’m doing mine a little early
thinking that I’ve added a lot more power and stress-
cheap and easy enough if I can find the damn drain plug!
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Old Sep 28, 2020 | 07:30 PM
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Originally Posted by russianDude
Not surprised ATF is so expensive, its not simple.

are you sure transfer is not at the same time as ATF?
Not with some "redneck engineering." You can change the ATF fluid without removing the entire undercover ... just the small one that's the cousin of the engine side undercover. All you need is a long-handle 3/8" ratchet and a funnel with some tubing. I can get the ATF done in the time it would take to remove the entire undercover that the service manual suggests and isn't necessary.
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Old Sep 28, 2020 | 07:46 PM
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Issue with transmission is you have to drain a fill 3 times or more to get all the fluid cleaned
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Old Sep 28, 2020 | 07:47 PM
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Originally Posted by ToniRDX19
This is a quote from my local Schaller Acura in CT.

ATF is not due until 60k miles so I will not service mine although I bought the fluid last week. I might do it at 30k when the transfer case fluid is due.

ATF : $350 parts and labor
Diff: $90 + tax
Transfer case: $90 + tax (due at 30k)
I got similar prices from Avon Acura
u in ct area huh?
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Old Sep 28, 2020 | 07:53 PM
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In manual its item 3: Replace transmission fluid and transfer fluid. Both should be done at the same time. Are you around 60K miles, or you trying to do it earlier?
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Old Sep 28, 2020 | 09:02 PM
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Originally Posted by russianDude
In manual its item 3: Replace transmission fluid and transfer fluid. Both should be done at the same time. Are you around 60K miles, or you trying to do it earlier?
hell I’m only at 15 k miles
bit I’m a little ocd about it
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Old Sep 28, 2020 | 09:11 PM
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Originally Posted by Rob5150
Issue with transmission is you have to drain a fill 3 times or more to get all the fluid cleaned
Such a poor way to get transmission fluid clean. I just drain and fill, do it every 10k miles or so and call it a day. Also, I'd confirm with them that that is actually what's being done, rather than a simple drain and fill one time. $350 for that would be outrageous, but if they're doing the 3x method, it's a very good price. I doubt they are, if they're charging $90 for a diff fluid change that's easier than an oil change and requires less fluid.
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Old Sep 29, 2020 | 10:36 AM
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Originally Posted by leomio85
Such a poor way to get transmission fluid clean. I just drain and fill, do it every 10k miles or so and call it a day. Also, I'd confirm with them that that is actually what's being done, rather than a simple drain and fill one time. $350 for that would be outrageous, but if they're doing the 3x method, it's a very good price. I doubt they are, if they're charging $90 for a diff fluid change that's easier than an oil change and requires less fluid.
3x method is nice for weaker Honda transmissions in the past generations. If 10sp is a solid build, you should not have to do 3x.
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Old Sep 29, 2020 | 06:09 PM
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@Rob5150

You owe me a beer. You have to remove the Engine Side cover (on the passenger side) to access the drain plug:




Easiest reference point would be where the exhaust gets squished into a pancake (as seen in the photo). Right above it is the drain plug. Make sure you're not confusing the transmission drain with the transfer case drain. The transfer case plug is flush, while the transmission plug protrudes out. I don't know how quickly the fluid will drain out, but I'm going to imagine it's going to be a bit messy, so be prepared for that. The fill plug is a bit trickier to get to, but it's still accessible. The easiest way to do it is to follow the driveshaft into the transfer case and you'll see the fill plug to the left of it:




You're going to have to get behind the subframe and put your arm thru the opening to access it. You're definitely going to need a pump and long hose to get the fluid back in.

I'm definitely going to be using the lift for this one. You can do it on your back in the driveway, but this is by far the hardest one to do from the looks of it. Does the transfer case use the same fluid as the differential? Also, I'm already having a seeping leak from where the transfer case mates to the transmission. Goddammit, Honda.



(Note: You can see the transmission drain in this photo to the extreme right. If you're wrenching on a bolt that looks like this, STOP ... it's the wrong one!)

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Old Sep 29, 2020 | 07:40 PM
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Wow that’s tricky
i definitely owe u a few beers
🍻🍻
many thanks
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Old Sep 29, 2020 | 09:06 PM
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Mine was leaking like that as well.
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