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YACT: Transmission Flush
- Thread starter tRaptor
- Start date
fbrdphreak
Lifer
I've never heard anyone say it'll kill your tranny. Depending on the car I might not want joe blow tuneup shop to do it tho.
Flush usually just hooks up a machine to inlet & outlet of tranny and runs fresh fluid through the entire thing, they're also supposed to have someone shifting gears to work the fluid through every part. Do this for a while and you get almost all new fluid. It can't hurt to do, dunno about every 30K tho. I might do it every 50-75K with regular tranny fluid changes in between, again depending on the car. A GM I had recommended tranny fluid change every 50K, so I would probly do a flush every 100K if you want to do that. However my Subbie recommends tranny fluid changes every 30K, so a flush every 60-90K would make more sense.
Flush usually just hooks up a machine to inlet & outlet of tranny and runs fresh fluid through the entire thing, they're also supposed to have someone shifting gears to work the fluid through every part. Do this for a while and you get almost all new fluid. It can't hurt to do, dunno about every 30K tho. I might do it every 50-75K with regular tranny fluid changes in between, again depending on the car. A GM I had recommended tranny fluid change every 50K, so I would probly do a flush every 100K if you want to do that. However my Subbie recommends tranny fluid changes every 30K, so a flush every 60-90K would make more sense.
fbrdphreak
Lifer
Really? Link? Never heard anything like that...
Scarpozzi
Lifer
I changed my tranny fluid (what was in the resevoir) once and filter... I noticed that there were small metal shavings in the pan...there are actually magnets down there that catch the shavings....
It wouldn't hurt to change the fluid and filter and have it cleaned out really good at some point. I don't know what the milage should be, but you can probably add a lot to the number the manufacturer recommends... They usually want more business so they give you a very extreme estimate on when to get it serviced.
It wouldn't hurt to change the fluid and filter and have it cleaned out really good at some point. I don't know what the milage should be, but you can probably add a lot to the number the manufacturer recommends... They usually want more business so they give you a very extreme estimate on when to get it serviced.
A change is always good, those "friction particles" lol will only wear out the bearings and clutches. If your clutches are so shot they need sand too work, YOU NEED A NEW TRANNY!
First one at 12000 miles, cuz thats the majority of the wear. After that every 40K depends on conditions. heavy loads/race/towing more often, clean, light load, no dirty roads etc 50-60k. I also run synthetic trans fluid when available, and auxiliary cooler. Over a cetain temp, ATF burns out twice as fast every 10 degrees rise in operating temps.
Just like engine oil, first time new/rebuilt, AFTER 20 MINUTES. Then 500 miles, using regular pertroleum. Dont put synthetic until "broken in" as its lubricity is too high and may prevent the proper wear to break it in. Then every 5-7.5k depending on reccomendations using high efficeiency filter (very imp with high interval synthetic) and oil. Oh, btw, I routinely build my own morors and trans, and commonly put 300K + miles on them, or more.
First one at 12000 miles, cuz thats the majority of the wear. After that every 40K depends on conditions. heavy loads/race/towing more often, clean, light load, no dirty roads etc 50-60k. I also run synthetic trans fluid when available, and auxiliary cooler. Over a cetain temp, ATF burns out twice as fast every 10 degrees rise in operating temps.
Just like engine oil, first time new/rebuilt, AFTER 20 MINUTES. Then 500 miles, using regular pertroleum. Dont put synthetic until "broken in" as its lubricity is too high and may prevent the proper wear to break it in. Then every 5-7.5k depending on reccomendations using high efficeiency filter (very imp with high interval synthetic) and oil. Oh, btw, I routinely build my own morors and trans, and commonly put 300K + miles on them, or more.
I've had tranny shops bring me "my pan" with somebody elses parts in it...telling me I needed a multi-thousand dollar job. I know that sprag
A) was not from an old trans and
2) it would not come into pan in big piece or
III) it wouldnt drive like that. Same trhing, put in old fluid, changed myself, and drovwe 130k more.
But my point that if your tranny NEEDS sand in it to work, YOU NEED A NEW TRANNY!
A) was not from an old trans and
2) it would not come into pan in big piece or
III) it wouldnt drive like that. Same trhing, put in old fluid, changed myself, and drovwe 130k more.
But my point that if your tranny NEEDS sand in it to work, YOU NEED A NEW TRANNY!
Heisenberg
Lifer
If you follow the service interval and do it every 30-40k miles then it's fine. If you don't change the fluid/filter for 100k, then you have problems with it.
Edit: Or yeah, read CadetLee's link.
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