I was always told that there is no servicable transmission filter on 2G TL, but I noticed #9 on this diagram from http://www.acuraautomotiveparts.org/


Doubled check servicable manual, sure it is called a filter. Popped the hood to triple check, it is right next to oil jet, held by four 10mm to the ATF hose, seems to me filter itself can be loosened with a 1 inch socket.

Does this filter function as a collector of metal debris from the ATF? If it is, why does Acura never going recommended replacing it, consider almost every auto tranny under the sun has a filter or screen that need replacement @ regular interval?

 

There is a filter inside the tranny that can be replaced, but you have to take the whole tranny apart so that is why they say it is not "servicable" on the 99. Not sure about other years. That filter looks like a AT fluid filter only, but not 100% sure.

 

that's a damn good question. i wonder if they look at that when they do the flush and fill. i'm going to ask when i get it done next friday.

SSTS

 

99 has a 4 speed, the picture I posted above applies to >00

 

interesting...

 

The filter referenced above is used to filter fluid going to the differential. Changing it won't help much for our issues.

The non-serviceable filter is actually called a strainer. It somewhat resembles a replaceable screen filter - like from a Nissan - but it's inside the case and you need to take the tranny apart to get to it.

The strainer feeds right into the pump and is what you'd need to clean to have any effect. BTW - I can see why the 3rd gear clutch pack has such a hard time getting fluid. Looking at the diagrams, you can see it's pretty much off by itself on the end of the countershaft. All of the other clutch packs are on the main shaft and the secondary shaft next to each other (our tranny has three shafts).

As far as clutch packs go - 4th and 5th gear are close in on the main shaft (driven by the engine), 3rd gear is by itself way on the end of the counter shaft, and 1st and 2nd gear are close in on the secondary shaft (the third shaft).

 

 

Let me ask a stupid question, the purpose of the filter in the oil restrainer is to get rid of metal particles, if ATF is shared between differential and tranny, does it matter where the point of filteration is?

 

problem is is its not metal shavings thats killing the tranny, nor is it debris. its the simple lack of cooling. That filter only filters the coolant going to the dif. not all the fluid in the tranny like conventional filters.

 

If the problem were contaminants getting into the differential - then I'd say that you should change that filter.

As "fatty" said - it's not a filtration issue.

(sorry, man - had to do it! )

 

Since it does not seem hard to remove the filter, I will take it out and exam the next time I do drain and fill. Just seems every filter on the TL needs replacement (except fuel filter, but every gas station has fuel filter at the pump), I am curius to find out how much stuff is trapped inside.

 

I just ordered the transmission filter after reading what this Odyssey owner found out after he cut open the tranny filter, those shining particles on the filter media are not reflections of camra flash from ATF, take a wild guess what they are
http://www.cardomain.com/ride/644415/5

 

Yea so? you will get that in break in, and also if his tranny is on the way out you will get more of that. It wont however make the tranny last as stated before, its not debris causing the tranies to die

 

I am not saying it is causing tranny to fail but it does not help tranny to prolong life. Name one filter (other than fuel filter, which is a backup) that is supposed to last a lifetime in the TL.
The logic of lifetime filter is flawed: would you pay for an engine oil change if the tech left the old one unchanged?
Check out this thread in Ody's forum and what they have experienced, the above filter is in better shape than others.
First sticky under maintence
http://www.odyclub.com/forums/showth...threadid=28594

 

The tranny filter. The trans design on the TL is very much like a manual. those dont have filters, so the logic isnt flawed. its designed to get by with what is has. The fact that the filter picked up debris means it did its job. What are you hoping to gain by replacing the filter, or what would you hope to gain by having a servicable filter?

 

Kris,
The Honda ATF filter has a bypass valve very much like that in the engine oil filter. I just want to make sure the ATF filter does not get clogged over time and in bypass mode most of the time.
ATF bypassed is 100% unfiltered, that is something I don't want to happen to my tranny. The magnet on the tranny drain plug is good, but it can attract only ferrous particles, plus debris must be close to the drain plug to work.

 

Honda tranny filters(the one inside the unit) do not have a bypass valve. Whether or not the differential filter has one is almost irrelevant. I have never heard of a Honda failing because of a differential problem.

The main filter - which is what all of the fluid is drawn through before hitting the pump and being circulated throughout the transmission is the important one. It does not have a bypass and is not serviceable.

 

It is good someone brings up the point. But, I believe either flaw design causes the failure or the clogged filter causes the failure of the tranny, both will contribute greater failture to the tranny.

Lets say the design was perfect; the clogged filter will kill the tranny due to unsufficent lubrication and overheating. Or lets say the filter was perfect, flaw tranny design will also kill the tranny.

So, the question is what options do we have to prolong the 2nd gen tranny, if there is one.

 

The ATF tranny filter is placed inline with the oil jet. Does oil jet pour ATF into the differential
Please read what Odyssey owners find out. It basically has the similiar design and under the same Honda recall. They have changed the filter, cut it open, and have first hand experience of before and after. Plus dealing with Honda's official party line of "no serviceable transmission filter" when asking the dealership to perform this service.
http://www.odyclub.com/forums/showth...=&pagenumber=5

 

I looked at the hydraulic diagram for our tranny, and that filter feeds the differential. I don't know what they did with the recall (mine's internal), but the fluid going through there was meant to feed the diff.

 

NONE!!!!!!!!!!!!!! Fluid and lack of filtering of the fluid IS NOT the problem. Its a design problem of the clutches.

And they are miss informed. All the oil jet does is fix the 2nd gear shaft,(which isnt the problem we all have) and it does NOTHING for the 3rd gear clutch problem. Nor does that little filter

 

Even if the filtered ATF feeds the differential, I assume the ATF is circulated and share with the transmission
1) Would one not clean the sludge attracted by the magnet on ATF drain plug? I bet 99% of us will clean it even though it only makes ATF cleaner in sump, because that ATF will get circulated back to the system, to places where cleaner ATF does matter.
Why would one not changing the ATF filter if the filter media is plugged up over time, as the picture above shows. This does not make logical sense
2) Again, no one has answered where else in the TL where filter is lifetime, engine air filter? cabin air filter? engine oil filter? Only exception is the fuel filter because every drop of gasoline is already filtered by a fuel filter at the gas pump. The fuel filter is a backup filter, ATF filter under discussion is not, shown by a layer of sludge reported by the owner who cut it open.
3) Why would Honda put a bypass valve if ATF flow rate out of the filter is not critcal?
Engine oil filter must have one since starving engine oil during high RPM or cold startup will cause elevated engine wear.

 

Refer to this thread from early August in which facts and logic had no effect.

 

Do you not get that fluid is not the cause of the issue? and by filtering the fluid, changing it more often, switching to synthetic will not help aid the tranny last longer?

What would help is larger clutchpacks, larger passages for fluid to get to the clutchpacks and more fluid to the clutchpacks (which is what honda did in the feb 05 redesign-other than the larger clutchpacks. they did however change plates and material)

 

Please read my posts in this thread again, I just want clean ATF, just as one wants clean engine oil. If a filter is dirty, change it. Just as one changes cabin, engine, and oil filters.
We are discussing changing a filter, not synthetic ATF or cause of tranny failure in this thread. See the title of the first post of this thread , it is "Transmission Filter"

 

OK - I can see this is going nowhere. Go ahead and change your filter.

 

CHANGE the filter. We NEVER said dont. All we are saying is that it WONT help keep the tranny from failing!! Just like Synthetic fluid wont. Fluid filtering is not the problem, but if it will make you sleep better at night feel free.
Im done