Delayed and violent 1-2 shift *new problems video uploaded*

Discussion in 'V8 - Maintenance & Troubleshooting' started by LJRuddy, May 11, 2012.

  1. LJRuddy

    LJRuddy Pop lock n drop

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    Just got the car back from the shop and I have a very delayed and then hard shift into 2nd gear. I remember reading something about a sticking accumulator piston (i think?) causing this issue. FWIW, right before I made it back home after the accident Sunday, the O/D light started to flash. I'm assuming this was due to the lost fluid which caused the remaining to overheat? Tranny has like 20,000 miles on it and had no issues before my accident.
     
  2. 93rev2sev

    93rev2sev SHO Member

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    Make damn sure there's enough fluid in it now. Check while idling hot.
     
  3. LJRuddy

    LJRuddy Pop lock n drop

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    Its plenty full... First thing I did when I came back home today.

    FWIW I tossed in a new filter and the fluid is brand new.
     
  4. Inkertinker

    Inkertinker Club Mod Staff Member

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    I just realize I did not send the side pan, sorry about that, this week has been a blur.
     
  5. LJRuddy

    LJRuddy Pop lock n drop

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    No worries. Thanks anyway!
     
  6. Liquid_force

    Liquid_force SHO Member

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    mine has done that since I bought it at 91.5k

    When it's cold the first couple 1-2 shifts are nasty, after that it is very smooth and RARELY happens when it's warmed up.

    Ambient temp doesn't seem to make much difference.

    I now have 124k+ and the condition has been consistent from day 1.

    I've gotten into the habit of running the rpm's up to the shift point, then lifting so it shifts at low rpms to keep it from slamming into 2nd.
     
  7. SHOhopefull

    SHOhopefull SHO Member

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    Accident induced shift kit?
     
  8. LJRuddy

    LJRuddy Pop lock n drop

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    New problem developed last night. When the tranny goes to engage a new gear (up or downshifting) it will go into the new gear, slip for a second and then tighten back up. If I go WOT at a speed that will not allow for a gear change, the tranny holds together perfectly. Here's a video on the highway going from 4th to 3rd gear, with a constant 1/2 throttle input. No CEL or OD lights are illuminated.

    [youtube]gSS0ENoPheY[/youtube]
     
  9. stephen newberg

    stephen newberg Moderator Staff Member

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    Ouch. That looks like bands slipping to me. Assuming these transmissions still have bands. If not, whatever has replaced them slipping instead. :)

    pax, smn
     
  10. ThatSHO

    ThatSHO v8 SHO

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    My trans acted weird after it was rebuilt somewhat similar to what yours seems to be doing but after looking around i saw that the tps connector was not all the way on and after that it did great. thats strange that it would be doing that with the low miles on the rebuild. If i were you i would look around at some sensors to see if the gets you anywhere
     
  11. LJRuddy

    LJRuddy Pop lock n drop

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    Whats weird is if I go WOT from a dig and run it balls out, the tranny works flawlessly. 3rd will go into lock up at 75 instead of the usual 85 but that's the only issue.

    Got an OD light last night. Gonna pick up my contacts and stop by an Autozone if theres one close and get the codes pulled.
     
  12. DrCheeto

    DrCheeto Lurking

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    That flare seems more like an electrical / sensor issue...
     
  13. LJRuddy

    LJRuddy Pop lock n drop

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    Got codes:

    p0411- secondary injection incorrect upstream flow (pump has always been funky. Works but always sets this code)

    p0733- gear 3 incorrect ratio

    p0734- gear 4 incorrect ratio

    p1519- IMRC stuck closed bank 1 (IMRC relay box has been removed and the secondaries are wired open)

    ThatSHO: Put my volt meter to the tps and the voltages look good so we can rule that out. All electrical connections are good and tight on the tranny.
     
  14. Dubeckyj

    Dubeckyj SHO Member

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    When my tranny died, I was getting incorrect ratio codes. What happened to me was the valve body would stick somewhere, and cause it to not shift into 3rd, or 4th (or eventually 2nd) so it would think that "4th" gear had the same ratio as 1st. If you are getting all your gears, then that probably isn't the issue.

    You didn't happen to change the chain ratio, did you?
     

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