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Discussion Starter · #1 ·
Anyone know if it is possible to change the transmission fluid
on your own?

Also a brief summary of the procedure would be great.

Thanks!
 

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I know this is pretty weak, but here's the info from the SI database:

Transmission Fluid Replacement




Preliminary Procedure
Raise the vehicle. Refer to Lifting and Jacking the Vehicle.

1
Fluid Drain Plug

Caution: Refer to Fastener Caution in the Preface section.

Tip
Place a drain pan capable of containing more than 5 quarts of fluid under the transmission before removing the plug to drain the fluid.

Tighten
12 N·m (106 lb in)

2
Fluid Level Indicator

Tip

• Transmission will require approximately 5 quarts of fluid.

• Fill the transmission with fluid. Refer to Transmission Fluid Check.
 

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Discussion Starter · #3 ·
Is there a filter that needs replacing, or anything other than just changing the fluid?

Thanks BTW.
 

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Copperhead13 said:
Is there a filter that needs replacing, or anything other than just changing the fluid?

Thanks BTW.
I have done a few fluid changes; I usually head over to the local parts store and buy a kit for the tranny. Most vehicles come with a new seal and filter; exception my Taurus has a permanent seal so I swap out the filter only
 

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There is not a serviceable filter on our transmissions. I don't think there is even a traditional pan to drop either. I'm planning on changing the fluid in mine this weekend though. The procedure above shows that 5 quarts is needed for a drain and refill. The total capacity from what I found is 9.5 quarts, so a single drain and fill will change out 50% of the transmission fluid.
 

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Discussion Starter · #6 ·
Let us know how it goes, and post pics if you can!

Thanks!
 

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If there is no pan drop; then I guess you would need to have it serviced at the dealer to remove all the fluid; I guess 50% is better than nothing if you're going to do it yourself
 

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Discussion Starter · #8 ·
How much ($) is the recommended tranny fluid / quart?
 

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jsimms said:
If there is no pan drop; then I guess you would need to have it serviced at the dealer to remove all the fluid; I guess 50% is better than nothing if you're going to do it yourself
In most ATs you only get a portion of the fluid out if you just drain the box... The dealer can perform a flush which circulates out the old and in with the new. Not sure what the cost is for the the acadia but my Silverado was not too bad maybe $100? Don't remember exactly, I had a bunch of stuff (radiator flush, tire rotation, differential service)done at that time and the total was about $300.
 

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My dealer quoted me about $130 for the complete flush with Dexron VI, in which they disconnect the transmission fluid lines running to the cooler/radiator and use a pump to remove all the old stuff and pump in new stuff.  However, I've heard stories of this stirring up debris/wear particles and essentially plugging the non-serviceable strainer/filter and causing a transmission failure.

I don't know if it was coincidence or not, but this exact thing happend to our Odyssey when we had the flush thing done at about 65K miles.  About 2,000 miles later the transmission failed (replacement was covered under our extended warranty).  Now, the Odysseys had transmission design problems to begin with, but its kinda hard to completely dismiss the connection.

As a result of this, I've pretty much sworn off the flush procedure and am going to stick with the good, old-fashioned drain and refill.  I'll take some pics too if everyone wants to wait till the weekend.  ;)  The Dexron VI was around $6/quart, IIRC, maybe a little less (I don't have the receipt with me).  I need to do my Silverado too, but it has a pan to drop and has a serviceable filter.

EDIT: Trans fluid was $4.70/quart
 

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Discussion Starter · #11 ·
Yes, take pics!

Those trannys in the Honda Odysseys were bad, was most likely just a coincidence.
 

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Discussion Starter · #12 ·
I was thinking, if you want a more thorough change,
perform a second drain and fill a week or so after the first,
that will give you a 75% fluid change.
 

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Copperhead13 said:
I was thinking, if you want a more thorough change,
perform a second drain and fill a week or so after the first,
that will give you a 75% fluid change.
:thumb: This is true, and if it ends up being as easy as the description I'll probably do it.
 

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y, I think drain and fill is better than powerflush for the reasons you state.
 

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Are you thinking about changing the transmission fluid on an 09? It is filled with Dextron and it is good for at least 100K. Do you have a problem? I would make sure you change the rear diff and the power transfer case fluid before even thinking about the tranny.
 

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2ACADIA2 said:
Are you thinking about changing the transmission fluid on an 09? It is filled with Dextron and it is good for at least 100K. Do you have a problem? I would make sure you change the rear diff and the power transfer case fluid before even thinking about the tranny.
I agree, but it certainly couldn't hurt to change the tranny fluid; it's least expensive when compared to a new tranny. I'm not sure I would let tranny fluid go 100K
 

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change twice if you are really concerned. remember the torque convertor holds a few quarts, but im not sure abuse is possible with this trans. you can only haul so much. i guess nuetral drops, but fluid aint gonna help that out!
 

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Here's the drain plug: 
 

You'll need a 11mm socket to remove it.  The plug is tiny and doesn't look like a traditional drain plug.  But changing the trans fluid was a piece of cake.  A lot easier than changing the engine oil.  For the price, I'll probably do it again next weekend and get the 75% change like Copperhead mentioned.  One thing to note, I had my Acadia up on ramps and the drain plug is toward the front of the vehicle so I didn't get quite all 5 quarts out of it, 4.5 quarts were enough to fill it back up.  I think it will be easy enough to do without putting it up on ramps next time. 
 

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Discussion Starter · #19 ·
Thanks for posting, so you don't have to lift the vehicle.
That's nice!

I'll do my first next fall, should have about 17,000 miles.
I figure by then it should be good a broken in as I'll be doing some light towing during the next summer.
What did the fluid cost per quart?
 

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Copperhead13 said:
Thanks for posting, so you don't have to lift the vehicle.
That's nice!

I'll do my first next fall, should have about 17,000 miles.
I figure by then it should be good a broken in as I'll be doing some light towing during the next summer.
What did the fluid cost per quart?
It was $4.70/quart at a local parts store here for Valvoline Dexron VI.
 
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