tranny oil flush

Looking in changing out my transmission oil but not quite sure which method to follow. Is it a simple drain and fill or drain, fill, drive 500km. then drain and fill again, drive and repeat one more time. Thanks
'99 tacoma, v6, 3.4L 4x4

 

Be best just to flush it instead of go through all that nonsense if you ask me. Just make sure and take it to someone who knows what they are doing. Flushing a high mileage trans can mess it up if it isn't done right.

 

Thanks for the comment

 

Ah, no ...

I would not flush it. Your posting in the 1st gen forum, so I'll assume you have high miles. A flush can be a kiss of death, requiring a new tranny in some cases. I just had this conversation with the service guy at my dealer's parts counter ... Of all the oils in your truck, the tranny is the one you have to worry about the least.

Search around and you'll see posts on how to drain, run the engine to drain some more, then fill.

 

No need to drive 500km after a drain/fill, just get it back up to operating temp so that the old mixes with the new fluid and repeat the process, then you're good to go.

Some will do this several times as the you don't always get all of the old fluid out the first time. This gets a little pricey, but it has its benefits.

You don't mention what type of tranny you have, but this will work on either a manual or auto transmission, but in particular an automatic. I agree with the above posts, don't flush a high mileage tranny especially if its an auto.

 

I just did a what I would consider a flush a couple weeks ago, my method may not be approved by transmission techs but it worked for me and the trans is running and shifting great. My truck has 98k miles, but I did have the trans serviced at 60k as well.
I pulled the trans cooler line off the radiator, put a funnel into the dipstick/fill tube, started the truck and let it idle to pump out the old stuff into a bucket thru the cooler line, while I refilled it thru the fill tube. I did this with three gallons of ATF, then put everything back together, and double checked the fluid level, I had to add about a quart to top it off. The fluid looks way better. If you do it this way make sure you have a friend or two working with you to turn off the truck when u run out of ATF to pour in, and to make sure you dont pump the trans dry. That would be a bad day.

Disclaimer: If anyone uses this method and ruins their trans, not my fault. lol

 

Thanks for all your comments and suggestions, I'll keep them in my pocket and maybe use them. Let me add this, its an auto trans, with 130,000km.

 

I was wondering why my 2006 Tacoma Prerunner auto sometimes lurches forward especially when it's cold? Should I do a trans oil change?

 

Not a problem flushing if you use the BG product flush, my wifes accord with 190,000 miles still does great,,, but you just need to have it done at a shop that has the BG flush and flush machine,,, total transfusion.