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Thread: Overfilled Transmission

  1. #1
    Senior Member HondaSUV Mentor
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    Default Overfilled Transmission

    I went to service my 2003 CR-V automatic transmission this weekend. First, I checked the level and it was WAY over the top line. Must have been that way since new.

    I drained the trans and got over 4 quarts out of it without doing any more than pulling the plug. I refilled with 3 1/4 quarts and that got it to the top line.

    I am so glad that the overfill didn't cause any damage.
    2002 Ford Ranger (love my truck!)
    2000 CR-V EX Manual (great dog hauler, most "Civic Like" of all CR-V's, it's my baby!!)
    2003 CR-V EX Auto (more room, more power, more refinement, less quality, traded 4/2012)
    2012 Mazda5 Sport Auto (Why doesn't Honda built something like this?)

  2. #2
    Senior Member HondaSUV Elder blueiedgod's Avatar
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    Default

    When you checked the level was the engine on and did you go through gears as per manual?

  3. #3
    Senior Member HondaSUV Mentor
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    As per the manual, the engine was OFF when I initially checked it BEFORE I drained it. However, I had obviously driven the vehicle 35K miles prior to changing the fluid.

    Also, the mechanics at both of my Honda dealers said it would take between 3 and 3.5 quarts. The diptstick said it was overfull, and the drain confirmed it.

    I checked it after filling, running it through the gears, and again after two days of driving. 3.25 quarts brought it back to the top full line on the dipstick.
    2002 Ford Ranger (love my truck!)
    2000 CR-V EX Manual (great dog hauler, most "Civic Like" of all CR-V's, it's my baby!!)
    2003 CR-V EX Auto (more room, more power, more refinement, less quality, traded 4/2012)
    2012 Mazda5 Sport Auto (Why doesn't Honda built something like this?)

  4. #4

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    Quote Originally Posted by bechtoea
    As per the manual, the engine was OFF when I initially checked it BEFORE I drained it. However, I had obviously driven the vehicle 35K miles prior to changing the fluid.

    Also, the mechanics at both of my Honda dealers said it would take between 3 and 3.5 quarts. The diptstick said it was overfull, and the drain confirmed it.

    I checked it after filling, running it through the gears, and again after two days of driving. 3.25 quarts brought it back to the top full line on the dipstick.
    I don't have the manual with me, but I think you check the level with the engine running after haveing but the transmission through teh gears in a particular order.

  5. #5
    Senior Member HondaSUV Elder 'Curly Q Links''s Avatar
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    Don't forget to change it a second time, preferably after several days of driving, since that gives the magnet a clean chance at grabbing a bunch more metalic stuff. It's never much, but every little bit helps.


    .
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    '97 CR-V. . . . . . '00 CR-V SE (leather) . . . '98 Odyssey V-Tec ! !
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    First, read the Owner's Manual, then SEARCH, your Internet is STILL WAY faster than mine.
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  6. #6

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    Quote Originally Posted by Curly Q. Links
    Don't forget to change it a second time, preferably after several days of driving, since that gives the magnet a clean chance at grabbing a bunch more metalic stuff. It's never much, but every little bit helps.


    .
    I don't think the second change has much to do with the magnet.

    It has to do with changing a night percentage of teh total fluid in the system.

    A complete change (like you do for burnt or contaminated ATF) requires three changes.

  7. #7
    Senior Member HondaSUV Mentor
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    Honda, unlike most other vehicles, states NOT to have the car running.

    The owner's manual states to change the fluid at 90K. Since I am being anal and changing it at 35, I'll just continue to change it ONCE every 30K.

    The fluid did have a bit of dark color to it, but wasn't burnt in the least. The magnet had a slight film of stuff on it, but no large metal bits.

    All in all, it was an extremely simple way to go.
    2002 Ford Ranger (love my truck!)
    2000 CR-V EX Manual (great dog hauler, most "Civic Like" of all CR-V's, it's my baby!!)
    2003 CR-V EX Auto (more room, more power, more refinement, less quality, traded 4/2012)
    2012 Mazda5 Sport Auto (Why doesn't Honda built something like this?)

  8. #8
    Senior Member HondaSUV Elder 'Curly Q Links''s Avatar
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    Quote Originally Posted by N_Jay
    I don't think the second change has much to do with the magnet.

    It has to do with changing a (high) percentage of the total fluid in the system.

    A complete change (like you do for burnt or contaminated ATF) requires three changes.
    You're right, it has NOTHING to do with the magnet . . You can just run it thru the gears for five minutes and flush it again, but if you wait until next weekend, you'll give the magnet lots of time to 'skim' a whole bunch of extra-fine particles what wouldn't stick when the magnet had the previous BLOB of filings on it. For diagnostic purposes, it might tell you a lot about your tranny's internal health.
    I'm clearly a different personality 'type' than you . . . . I piddle around with stuff that an expert wouldn't even consider. :-)
    .
    '97 CR-V. . . . . . '00 CR-V SE (leather) . . . '98 Odyssey V-Tec ! !
    --------------------
    First, read the Owner's Manual, then SEARCH, your Internet is STILL WAY faster than mine.
    --------------------

  9. #9
    Senior Member HondaSUV Mentor
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    Default Overfilled Tranny

    My mechanic told me that overfilled and underfilled Trannies will overheat.

    I think overfilled is more dangerous than underfilled.
    [B][I] 2000V pushing 161K

  10. #10
    Senior Member HondaSUV Mentor pahipo_aviv_V2's Avatar
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    The owner's manual states to change the fluid at 90K. Since I am being anal and changing it at 35, I'll just continue to change it ONCE every 30K.
    BTW . . . how long did this whole procedure take you? i'm at 29K on my 04 V auto and i'm gonna do this along with the diff lube change. thanks in advance (from another anal CRVer - a two CRVer, BTW)
    . . . . . aviv . . . . .
    04 CR-V EX 4wd Taffeta White COTM 4.6
    00 CR-V EX 4wd Elctrn Blue Prl COTM 4.6

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