Adding a transmission oil filter on a Honda odyssey 2006

[xgmad]

Im not going to do a drain and fill, but will disconnect the atf return line from the cooler to get rid of alot of the old ATF.

The return line is a rubber hose and enough to possibly put an inline filter in it, is it safe and possible?

 

[LazyDog]

My 2004 CRV as an inline filter just below the radiator, yours might it too!

 

[Hall]

Our 2005 Odyssey had an ATF filter. An '06 should already have one....

It's not inline but the transmission case has a built-in housing for it

https://www.bernardiparts.com/Honda...ransmission=7&area=2&section=3&assembly=13128

 

[mattwithcats]

Wix 33033 3/8 inlet/outlet
Wix 33032 5/16
Wix 33031 1/4

 

[92saturnsl2]

Pretty sure the '06 has a cartridge filter in the transmission case, you remove a filter cover to get to it.

Not sure if they still use the in-line filter that was present in the previous generation, that was behind and under the battery tray, but that filter shows up in the Rockauto catalog for 2006, as well as the cartridge filter.

 

[VolvoZ]

Funny you should mention this, as i am currently installing a transmission cooler in my 06 Odyssey (and replacing motor mounts, radiator, and a few other bits). So the whole front end of the Ody is disassembled and i can confirm the 06 does not have an inline filter in the usual sense. It does have an internal (not able to be replaced) screen filter that is only replaceable if you split the transmission, and it does have a very small cylindrical pleated filter on the driver’s side that is accessible on the driver’s side via the driver’s wheel well and beneath and behind the battery tray. I did replace that small cylindrical filter a couple years ago and it was not very dirty at all in case anyone is wondering. I would say that more filters is better than fewer for this transmission given its reputation.

XGMAD: could you confirm which line coming off the radiator is the return line please?

 

[xgmad]

Funny you should mention this, as i am currently installing a transmission cooler in my 06 Odyssey (and replacing motor mounts, radiator, and a few other bits). So the whole front end of the Ody is disassembled and i can confirm the 06 does not have an inline filter in the usual sense. It does have an internal (not able to be replaced) screen filter that is only replaceable if you split the transmission, and it does have a very small cylindrical pleated filter on the driver’s side that is accessible on the driver’s side via the driver’s wheel well and beneath and behind the battery tray. I did replace that small cylindrical filter a couple years ago and it was not very dirty at all in case anyone is wondering. I would say that more filters is better than fewer for this transmission given its reputation.

XGMAD: could you confirm which line coming off the radiator is the return line please?

 

[xgmad]

Pretty sure the '06 has a cartridge filter in the transmission case, you remove a filter cover to get to it.

Not sure if they still use the in-line filter that was present in the previous generation, that was behind and under the battery tray, but that filter shows up in the Rockauto catalog for 2006, as well as the cartridge filter.

Yes it does have a transmission on the top of the transmission, but it is a pain to replace due to the limited space, is why I am trying to put in an inline filter on the return line.

Wix 33033 3/8 inlet/outlet
Wix 33032 5/16
Wix 33031 1/4

Thanks for this. It should work. But I am not sure about the pressure of the transmission able to handle a filter.

 

[VolvoZ]

Thanks xgmad. I have seen this graphic several times, but the position of the lines where they connect to the top of the transmission are different from the picture. Instead of line ports being positioned atop the transmission fore and aft as pictured, they are actually positioned side by side on the 06. Apparenly this graphic must apply to another year of Honda transmission. Then to further complicate and confuse, the right side line in the graphic above is connected to a hard metal line that actually connects to the passenger side transmission cooler line connection. If you are able to confirm which way the fluid flows inside the radiator trans cooler (either Passenger side to Driver side, or the other direction), i would be most grateful.

 

[xgmad]

Thanks xgmad. I have seen this graphic several times, but the position of the lines where they connect to the top of the transmission are different from the picture. Instead of line ports being positioned atop the transmission fore and aft as pictured, they are actually positioned side by side on the 06. Apparenly this graphic must apply to another year of Honda transmission. Then to further complicate and confuse, the right side line in the graphic above is connected to a hard metal line that actually connects to the passenger side transmission cooler line connection. If you are able to confirm which way the fluid flows inside the radiator trans cooler (either Passenger side to Driver side, or the other direction), i would be most grateful.

Oh yeah, the return line is the passenger side.

 

[xgmad]

I just plucked out mine and started the van and yes the passenger side is most definitely the return line.

 

[Sparky16]

It already have an inline filter, you'll end up with 2 inline filters if you install another. What's going to happen when both are loaded with metal shavings?

Just did 4 qts drain & fill 11,000 miles after previous one, 2015 MDX. Metal shavings on the drain plug magnet was quite a bit. I also did 3 times of D&F (4 qts each) along with inline filter change about 20,000 miles ago on Feb 2019.

 

[xgmad]

It already have an inline filter, you'll end up with 2 inline filters if you install another. What's going to happen when both are loaded with metal shavings?

Just did 4 qts drain & fill 11,000 miles after previous one, 2015 MDX. Metal shavings on the drain plug magnet was quite a bit. I also did 3 times of D&F (4 qts each) along with inline filter change about 20,000 miles ago on Feb 2019.

They have a transmission filter on the top, which I might remove in favor of a inline filter on the return line

 

[SoNic67]

Two filters don't "filter" better than one. Oil goes in multiple passes trough the one filter, so what the second filter ends up doing is:
1 - increase the filters holding capacity. So you could keep those filters longer. I would say that replacing the smaller filter more often is achieving the same result.
2 - the extra filter adds pressure drop in the circuit (called "head" to the transmission pump). That will decrease the volumetric flow inside transmission.
I don't know about you, but to me that's the last thing that I want on a transmission.
Also, you you leave that small filter not changed, and it is filled with stuff, it will also increase the head. Eventually will go in by-pass more (not filtering anything) but still maintain that extra head. Change that filter now.

PS: This is how the flow/pressure varies on a typical pump. The pump inside transmission is no different. Increase the head, lower the flow. If the head is high enough, the pump cannot flow anything, it just spins the blades in oil for nothing.

 

[xgmad]

Two filters don't "filter" better than one. Oil goes in multiple passes trough the one filter, so what the second filter ends up doing is:
1 - increase the filters holding capacity. So you could keep those filters longer. I would say that replacing the smaller filter more often is achieving the same result.
2 - the extra filter adds pressure drop in the circuit (called "head" to the transmission pump). That will decrease the volumetric flow inside transmission.
I don't know about you, but to me that's the last thing that I want on a transmission.
Also, you you leave that small filter not changed, and it is filled with stuff, it will also increase the head. Eventually will go in by-pass more (not filtering anything) but still maintain that extra head. Change that filter now.

PS: This is how the flow/pressure varies on a typical pump. The pump inside transmission is no different. Increase the head, lower the flow. If the head is high enough, the pump cannot flow anything, it just spins the blades in oil for nothing.

But im going to remove the inside filter completely,

and then install an inline hose filter because the pain of replacing it is horrible.

 

[Sparky16]

They have a transmission filter on the top, which I might remove in favor of a inline filter on the return line

Not sure which filter you have, but if the one below is what's in your Oddy, the area is pretty tough to access. Honda doesn't spec to replace this filter, so I would replace it every 60,000 - 75,000 miles or even longer. And I have a brand new one unused in my garage drawer.

 

[xgmad]

Not sure which filter you have, but if the one below is what's in your Oddy, the area is pretty tough to access. Honda doesn't spec to replace this filter, so I would replace it every 60,000 - 75,000 miles or even longer. And I have a brand new one unused in my garage drawer.

View attachment 62124

Yeah thats the exact transmission I have,

It is tough to access is why I will remove it and put in an inline filter instead, I searched on the ody forums and alot of odyssey owners are doing this for this same reason.

I hope your return line issue is solved, as it is in the passenger side.

 

[SoNic67]

Replace once every 60 k miles is hard to do?
I would not trust the in-line filter with my transmission, I would replace the OE one. I mean, you are already removing it, so... why not put a new one back?

Anyway, since this is a Honda, I would not cry too much to see it's transmission dead. For some reason I hate the Civic (mainly because their drivers), and Odyssey (because, to me, it looks like a hearse, because of the rear pillar shape).

 

[xgmad]

Replace once every 60 k miles is hard to do?
I would not trust the in-line filter with my transmission, I would replace the OE one. I mean, you are already removing it, so... why not put a new one back?

Anyway, since this is a Honda, I would not cry too much to see it's transmission dead. For some reason I hate the Civic (mainly because their drivers), and Odyssey (because, to me, it looks like a hearse, because of the rear pillar shape).

Well, yes these transmissions are weak, but hey my dad bought it and gave it to me and he paid 6k for it and had only 30,000 miles on it

 

[VolvoZ]

I just plucked out mine and started the van and yes the passenger side is most definitely the return line.

Thanks for checking. So (just confirming) the flow is opposite of the diagram above?

Just finished all the motor mounts except for the timing belt side mount. That will be done in the morning, then will reassemble with the trans cooler and new radiator.