Transmission Flush myself?

Discussion in 'General Motoring' started by sancheuz, Dec 16, 2003.

  1. sancheuz

    sancheuz Guest

    Hello, is it possible that i could do a transmission flush my self on my 92 honda accord?
     
    sancheuz, Dec 16, 2003
    #1
  2. sancheuz

    DrPimpDaddi Guest

    yes


    ....................
    I do not killfile nor use do-not-call lists.
     
    DrPimpDaddi, Dec 17, 2003
    #2
  3. sancheuz

    Tegger® Guest

    Sure. Drain and fill. Do this at every second oil change. All you need to
    do.
     
    Tegger®, Dec 17, 2003
    #3
  4. sancheuz

    Bror Jace Guest

    I assume you're talking about an automatic tranny?

    --- Bror Jace
     
    Bror Jace, Dec 17, 2003
    #4
  5. Every second oil change ??? Like every 10K !!! You gotta be kidding me.
     
    -- SilverSting--, Dec 17, 2003
    #5
  6. "sancheuz"
    92 honda accord?

    Nope. Will require a buddy.

    Here's how its done, but not recommended: First realized that you can't empty
    all the T-converter. 1) Drain 2) Refill to top 3) Remove cooler exit hose 4)
    Run motor until it goes from dark to clear. Stop motor. Refill to norm level.
    Finish. Warning: Do not run dry. -This is ideal for those with gear debris
    in fluid or other serious probs.
     
    Indian Summer, Dec 17, 2003
    #6
  7. sancheuz

    BigJohnson Guest

    Anything is possible, but is it practical? I would suggest you
    take it to a shop that has a transmission flushing machine.
    Transmission fluid has a large amount of detergent. Often when
    the fluid is changed the new fluid loosens up much of the gunk
    and cause problems. The flushing machines in addition to
    changing the fluid in the converter also pump through a cleaning
    solution that loosens all the the gunk, cleans the filter and
    flushes it out of the tranny before installing the new fluid.
    Short of tanking down the pan and making adjustments if is one of
    the best preventive maintenance regimens one can do to improve
    the longevity of a tranny.


    mike hunt
     
    BigJohnson, Dec 17, 2003
    #7
  8. sancheuz

    NetSock Guest

    Oh what wisdom!
    Um...is that why its called "flushing" Mikey?
    Oh! That's what "flushing" means...thanks again Mikey!

    --
    '03 S2000
    '94 Accord

    It's just about going fast...that's all...

    http://home.insight.rr.com/cgreen/
     
    NetSock, Dec 17, 2003
    #8
  9. sancheuz

    Tegger® Guest


    Nope. Never had a Honda automatic, but Toyota autos have drain plugs in the
    pan, making drain and refill as easy as an engine oil change.

    ATF has a hard life doing what it does. You can help your tranny live much
    longer by being nice to it. Ever priced an auto tranny rebuild?
     
    Tegger®, Dec 18, 2003
    #9
  10. sancheuz

    Mista Bone Guest

    you want the tranny to last more than 90,000 miles right?
    Honda auto trannys have non-serviceable filters.
    Just drain and filling the fluid only changes about 1/3 of all the fluid
    inside the tranny.

    So that would be $100 in fluid at 90,000 miles if changed at 10,000 mile
    intervals, or a $2500 rebuild.

    25:1 odds, how lucky do you feel today?
     
    Mista Bone, Dec 18, 2003
    #10
  11. sancheuz

    NetSock Guest

    But you don't get most of the fluid out.

    Draining the pan only releases 2-4 quarts of the fluid. Most of the fluid is
    in the torque converter and pump...up to 8 quarts more.

    Flushing...with the engine (tranny pump) running...is the only way to
    properly change ALL the fluid.

    Drain plugs in automatic trannys are just about worthless.

    --
    '03 S2000
    '94 Accord

    It's just about going fast...that's all...

    http://home.insight.rr.com/cgreen/
     
    NetSock, Dec 18, 2003
    #11
  12. sancheuz

    Tegger® Guest


    No. That's why I change every second or third oil change. That way the
    fluid is mostly clean all the time. And because you're changing it that
    often, the fluid is cleaner for longer than if you do a once-a-year
    "flush".

    After the third or fourth drain, the fluid is essentially new all the time
    after that. Also, you're more likely to do the regular drain-and-fill than
    an occasional flush because it's cheaper, faster and easier to do.
     
    Tegger®, Dec 18, 2003
    #12
  13. sancheuz

    Tegger® Guest


    Yeah, but I'm not talking about doing it just once then never again, but
    doing it every 10K miles or so. After a few changes, the fluid is going to
    be basically new anyway so long as you keep draining and filling just like
    it was an engine.


    Not very, which is why I do these changes. I like my money in MY pocket.
     
    Tegger®, Dec 18, 2003
    #13
  14. sancheuz

    NetSock Guest

    I gotta call ya on this one Tegger. You have proven yourself very
    knowledgeable, but I will strongly disagree with you on this one.

    While it *may* be somewhat beneficial to partially change the fluid, fact
    is, it will never be "clean all the time". All the dirt in the leftover
    fluid will just redistribute itself over the whole mass. While it will be
    cleaner by percentage at that point, dirt and wear will continue to
    accumulate from that point.

    Tell you what...try changing just one quart of your oil at a time, and see
    if it ever gets "clean".

    The only purpose of a tranny drain plug, is to make it easier to remove the
    pan to change the filter. It was not intended to be used as a means to
    "drain & fill."

    --
    '03 S2000
    '94 Accord

    It's just about going fast...that's all...

    http://home.insight.rr.com/cgreen/
     
    NetSock, Dec 18, 2003
    #14
  15. sancheuz

    Tegger® Guest


    Any "dirt" is mostly clutch material. Changing your oil frequently helps
    keep the stuff from accumulating to the point that it begins to clog the
    filter.


    ATF does not have to absorb combustion byproducts and water, unlike engine
    oil. Its stress is mostly from heat, and from the chopping action of the
    gears, much like the sort of stresses encountered in a manual transmission.
    The chopping action shortens the long-chain polymers that make the stuff
    work.

    Replacing the fluid a gallon or a half at a time is perfectly fine provided
    you do it regularly.


    Actually, it _is_ intended for drain and fill. I have the factory manual
    for our '99 Toyota Tercel, which has an automatic. The procedure for
    replacing the fluid involves removing the drain plug and refilling through
    the dipstick tube. Nothing else. No "flush" is mentioned anywhere.

    Page AX-2 in case anyone wants to look it up.
     
    Tegger®, Dec 18, 2003
    #15
  16. sancheuz

    KWW Guest

    Manual for my Honda Civic reads the same way.
     
    KWW, Dec 18, 2003
    #16
  17. Loosening the dirt on the filter (talking about a mesh screen) would likely
    cause problems. Loosening dirt here would feed them upstream to clog the
    valves later. I'd open it up and clean it manually. And the magnetic debris
    pickup is probably overdue.
     
    Indian Summer, Dec 19, 2003
    #17
  18. sancheuz

    NetSock Guest

    There are also acids and other contaminates in the existing fluid, that
    would break down the "added" fluid quicker.
    You certainly cant hurt anything, but not doing a full flush means your
    system will NEVER be 100% clean.

    You are also wasting a lot of good fluid, but if you want that piece of
    mind, its your money.
    Id like to see the whole manual. Is it available on-line anywhere?


    --
    '03 S2000
    '94 Accord

    It's just about going fast...that's all...

    http://home.insight.rr.com/cgreen/
     
    NetSock, Dec 19, 2003
    #18
  19. sancheuz

    Tegger® Guest


    Neither will flushing it once in a while. In between the flush periods,
    your fluid is getting older and older. The additives, friction modifiers
    and long-chain polymers are getting less and less effective.


    Assuming your tranny holds 8 qt and you get 4qt out at each drain (which is
    what the Tercel does if I let the car sit overnight first), after the first
    drain/fill, the fluid is 50% new.

    If you drive the car for a day to let the fluid mix thoroughly, then repeat
    the drain/fill, the fluid is now 75% new. If you then do regular changes
    every second or third oil change, your fluid is always going to be more
    than 75% new. There will never be a time when your tranny is laboring with
    0% new fluid, unlike if you do infrequent flushes.
     
    Tegger®, Dec 20, 2003
    #19
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