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DIY: ATF flush and fill + Magnefine filter installation

144737 Views 178 Replies 50 Participants Last post by  planomateo
Moderator Edit:

Since the pictures are missing, if you want pictures, you can go directly to the following post in this thread to get the pictures.

http://www.odyclub.com/forums/showthread.php?s=&postid=522553#post522553




I just did a complete ATF flush and refill on my 2000 Ody as some people have suggested on this board. Previously, I did a drain and refill at 45K and the infamous “3X” drain and refill by a dealer around 95K. Now the car is over 130K and I started to feel little sluggish lately. The whole process took less than 3 hours including a Magnefine filter installation. Here are the pics. Many thanks to all those people who’ve posted HOWTOs on this project.

Parts needed: case of Honda Z1 ATF (12), Magnefine filter, 2 hose clamps


Tools: screw driver, hose cutter, 3/8” drive ratchet, ½” drive handle + long extension (>12”), 17mm socket, [not in pics:] oil drain pan, measuring bucket (enough to hold 3qts), 12” clear hose (3/4” in diameter), roll of paper/shop towels


Remove the plastic splash guard on the bottom of the engine compartment. Use a screw driver to unplug bumper and fender plugs.


Remove the ATF fill plug using a 17mm socket with long extension. Newer Odys or rebuilt trannies may no longer have this fill plug. Use the dip stick tube instead for refills.


Use a ¾ driver ratchet to remove the transmission drain plug.


Drain ATF. Slightly over 3 Qts should come out.


Clean the gunk around the magnetic part of the drain plug and screw it back in with 36 ft-lbs torque.


Refill ATF. Pour in about 3 ½ Qts.


Cut returning ATF rubber hose on the driver side. Don’t do this if you’re not installing a Magnefine filter. You can simply remove the hose from the ATF cooler.


Insert one end of the clear hose over the factory hose on the radiator side. The other end should point to the measuring bucket.
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See threads about doing a trans fluid change in the 02-04 vans that have the oil jet mounted on the fill plug. In those threads the size of tubing used is posted. Most use a hose that fits over the dipstick tube and onto a funnel. I think the main thread was called "changing transmission fluid after oil jet recall"
Your transmission has a filter. The 99-01 four speeds did not. So adding one for you is a convenience, peace of mind thing, not a necessity. As to warranty issues, Honda actually adds a filter when replacing the four speeds.
You don't even have to be as obsessive as to remove any hoses. Just do a normal drain and fill, using the drain plug, with a new crush washer, torquing to spec. Do that for say, the next three oil changes. Then a schedule of every other oil change. This is what Honda mechanics do on their own cars. Honda Odyssey transmission problems are: extreme in 99-01, happen some in 02-04, and except for some that died within days of delivery, none reported at all for 05-07. There is not even any evidence that frequent changes help with failures. However, Honda makes it easy to change the fluid and it may help long term . That is why I do it. My 02 (and my wife's 03) may never fail because of fundamental problems. I may have a transmission with high mileage (my wife's is currently 135k) so maintenance now is really for later.
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Please note the differences in the 99-01 four speed transmissions and the 02-04 five speed transmissions. The four speeds do not have a filter and therefore get an in line one when they get replaced. Everyone lumps these very different units (and replacement protocols) together.
Oh don't bother, Honda probably just put on there for pretty. How can you be a true hillbilly with a splash shield? :D
When your wife looses power steering in the rain, let us know how that works out for you. :D
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