torque converter failure

Discussion in 'General Motoring' started by jim beam, Jul 26, 2010.

  1. jim beam

    jim beam Guest

    what kind of mileage do others see before a torque converter lockup
    clutch will start to slip? victim is a 90 honda crx.
     
    jim beam, Jul 26, 2010
    #1
  2. jim beam

    Ed Treijs Guest

    That's a pretty general question. There may be a lot of dependency on
    the state of the transmission fluid, and whether the converter is
    designed to sometimes run in partially-locked mode. My understanding
    is that Chrysler's ATF+4 was formulated for partial lockup.

    My '87 K-car's transmission gave no warning before it pretty much
    stopped shifting gears. The problem was that some converter clutch
    material had gone into the fluid and all over the place and played
    havoc with the valve body. I didn't even have any slippage
    symptoms.when this happened. So you might want to have the
    transmission worked on right away....at least disable the lockup
    feature if you need to keep driving the car.
     
    Ed Treijs, Jul 27, 2010
    #2
  3. jim beam

    jim beam Guest

    i guess that's my question - what is supposed to happen.

    i have two of these things, so compare and contrast is easy. on one,
    the lockup clutch is starting to slip on hills, the other is not. in
    all other respects, the car is fine. but i have read about partial
    lock-up mode - honda calls it "control mode", so i was wondering.
    transmissions fluids are great, no debris, pink and unburnt, and besides
    the fact that the other car behaves different, i'm convincing myself
    that this is a progressive problem that's getting worse. mileage is
    just under 200k.
     
    jim beam, Jul 27, 2010
    #3

  4. This can probably be accomplished by either jumpering or cutting a wire to
    the trans ECU.
     
    Hachiroku $B%O%A%m%/(B, Jul 27, 2010
    #4
  5. Had a Ford Aerostar van that had a bad shudder around 60 up a slight grade
    with the TCC engaged. TCC was starting to slip. I changed the trans.
    fluid, went away, never came back. Old fluid smelled fresh, no
    discoloration. Just my .02, but it might be worth a try.

    Garrett Fulton
     
    Garrett Fulton, Jul 27, 2010
    #5
  6. jim beam

    jim beam Guest

    yeah, i already tried that. smoothed out the shifting a little, but
    hasn't affected lockup clutch slip.

    further to the "control mode" thing, a friend [control engineer] tells
    me that some manufacturers use p.w.m. on their lockup solenoid valves to
    actually cause slippage in certain situations. curiouser and curiouser.
    need to do some more homework.

    in the mean time, if anyone knows how long a honda civic torque
    converter usually lasts, that would be good to know.
     
    jim beam, Jul 27, 2010
    #6
  7. jim beam

    Elle Guest

    I saw some reports of torque converter failure at honda-tech.com that
    might give you an inkling. Seems like I saw a few CRX's a couple years
    older than yours failing per posts a couple years old.

    Go to honda-tech.com, click on search then advanced search, put in
    {torque converter slip} or similar, restrict your search to the CRX
    group.
     
    Elle, Jul 27, 2010
    #7
  8. jim beam

    hls Guest

    Have no idea.. Daughter in law has a hybrid Civic of about 8 years age, and
    she started having a little trouble with the tranny.. They sold my son a
    tranny
    flush, and -believe it or not- it cured the problem.

    Regular tranny convertors are likely totally different.

    I drove this car last week, by the way. It was no way as quiet as it was
    when
    they bought it,but still gets 48-54 mpg..
     
    hls, Jul 28, 2010
    #8
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