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Hard shifts after pan drain and fill

Discussion in '2nd Gen Tundras (2007-2013)' started by 1rooster, Mar 10, 2020.

  1. Mar 29, 2020 at 9:04 AM
    #91
    JohnLakeman

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    It's worth using a level to get a good fluid level check, but I'm doubtful that slight variation in fluid level is responsible for your problem.

    For a vehicle that may operate in extreme attitudes (uphill,downhill, left leaning, right leaning), it makes no sense that proper transmission operation would be highly dependent on instantaneous fluid level. Some owners have said that adding fluid has made a difference in operation, but as far as shifting goes, I can't see it having any real effect. Maybe I'm missing something.

    The pump strainer is configured to pull fluid from very near the bottom of the pan. Once the pump suction strainer is covered, how is any fluid above the flooded level going to make any difference regards pump pressure? With fluid running down out of the clutches and gears, it's unlikely that splash lubrication is even needed. :notsure:
     
    Last edited: Mar 29, 2020
  2. Mar 29, 2020 at 11:12 AM
    #92
    1rooster

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  3. Mar 29, 2020 at 11:15 AM
    #93
    1rooster

    1rooster [OP] New Member

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    Your right. I don’t think it makes much of a difference. There was a member on here that was overfilled by two quarts for years and didn’t know until his next drain and fill.
     
  4. Mar 29, 2020 at 11:18 AM
    #94
    1rooster

    1rooster [OP] New Member

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    Good data!
     
  5. Mar 29, 2020 at 8:54 PM
    #95
    landphil

    landphil Fish are food, not friends!

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    So I drove my Tundra a good hour and a half today, warm idle speed in neutral with A/C off was in the vicinity of 650-700 rpm according to the dash tach. I haven’t gotten to checking specs yet, but based on that it seems like your idle speed is correct-ish.
     
  6. Mar 30, 2020 at 5:13 AM
    #96
    1rooster

    1rooster [OP] New Member

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    99F3B854-2402-462A-B2A3-0A924B3953A3.jpgSame
     
  7. Mar 30, 2020 at 6:58 AM
    #97
    Failure2comply

    Failure2comply Master HVAC Tech

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    Pan was very clean but I think the fluid was changed once before I got it.
     
  8. Mar 30, 2020 at 8:15 AM
    #98
    1rooster

    1rooster [OP] New Member

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    That is good to know
     
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  9. Mar 30, 2020 at 9:24 AM
    #99
    hagrid

    hagrid The most diverse of Diversity Hires!

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    paynuss stretchers
    Please be very careful with your shin. None of us want to see you confined to a wheelchair.
     
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  10. Apr 1, 2020 at 2:56 PM
    #100
    1rooster

    1rooster [OP] New Member

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    UPDATE.
    It’s been 1,000 miles with no change... I ordered a sonnax zip kit. It probably won’t make it by this Saturday so it will be a next weekend project. I’ll take pics and do a write up if anyone is curious.
     
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  11. Apr 6, 2020 at 6:03 PM
    #101
    1rooster

    1rooster [OP] New Member

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    Looks like this weekend is gone be a joy!0AA26853-B83B-46A1-ABCC-B14E6ED90F9D.jpg
     
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  12. Apr 7, 2020 at 1:59 PM
    #102
    el_taco

    el_taco New Member

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    Anxious to see outcome...
     
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  13. Apr 7, 2020 at 5:13 PM
    #103
    1rooster

    1rooster [OP] New Member

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    Went ahead and got out the stainless work bench and cleaned it up.42F5FF0B-91F2-4BEC-83DF-CFE97996EA34.jpg
     
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  14. Apr 9, 2020 at 4:52 PM
    #104
    1rooster

    1rooster [OP] New Member

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    Got the valve body pulled today after work. Only thing that fell out was the three washers, drain back valve, and the smallest accumulator. Over all not that difficult so farE965AB75-4B0A-4871-8CA5-D347FA4E3B17.jpg 387E9C0E-9024-428F-B81A-5C5DDB9AA363.jpg 0DAE2AA9-B76D-48E0-A933-395FF5DB6890.jpg 1A30EAAB-A3E7-428C-8E74-1CCC9B5601F2.jpg E5681266-60E0-45B9-BB7A-47A8FD3FEA8F.jpg
     
  15. Apr 9, 2020 at 5:07 PM
    #105
    JohnLakeman

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    Wow, your fluid looked SO clean...until that gnarly black crap leaked out of the valve body ends. What's up with that?
     
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  16. Apr 9, 2020 at 5:21 PM
    #106
    1rooster

    1rooster [OP] New Member

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    0368F43A-5793-461D-8CFE-4E869687D817.jpg Its clean as well. It just looked dirty in that pic
     
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  17. Apr 9, 2020 at 5:24 PM
    #107
    1rooster

    1rooster [OP] New Member

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  18. Apr 10, 2020 at 11:07 AM
    #108
    JBeezy80

    JBeezy80 New Member

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    new to me, 08 Tundra SR-5 2WD
    Just purchased, then added; 3" frt 2" rear MotoFab lift/lvl kit. 20x9 MotoMetal M0962 wrapped with 305/5520 Nitto Terra Grapplers. Spyder projecter black/smoked with halos
    Question about the rear end, on your truck. Do you notice a delay or jerk sometimes when stopped and then throttle is applied?? I have just purchased my 08 and have been noticing this jerk, and have related it to the rear end playin the ford f-150's which is real common for those trucks. Anyway, Im thinking the rear end may need rebuilt, but im also now wondering if it has a play in the way im feeling the tranny shift too.
     
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  19. Apr 10, 2020 at 11:11 AM
    #109
    JBeezy80

    JBeezy80 New Member

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    What do you mean by pinning the cooler? I have never heard of that before. Thanks
     
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  20. Apr 10, 2020 at 2:29 PM
    #110
    JohnLakeman

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    Tundras 2010-2018 with tow package will have a thermostat for the transmission mounted warmer-cooler that sends ATF to a air-to-oil heat exchanger built into the top of the AC condenser. Pinning the thermostat means to open that thermostat completely by depressing a spring-loaded plunger on the thermostat so that all ATF flows to the front heat exchanger for cooling. Video link below from youTube video shows the thermostat plunger being depressed and pinned in position with a paper clip.

    https://www.youtube.com/watch?v=fLVZSoKbyZ0&feature=youtu.be&t=26
     
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  21. Apr 10, 2020 at 4:05 PM
    #111
    1rooster

    1rooster [OP] New Member

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    B85AE27F-ABBD-4FD6-ACF0-F04384F46926.jpg
     
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  22. Apr 10, 2020 at 4:42 PM
    #112
    1rooster

    1rooster [OP] New Member

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    Spoiler alert! Full valve body rebuild and still got my “firm” shifts. At least I have a piece of mind that it’s not my trans. Or at least my valve body .
     
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  23. Apr 10, 2020 at 5:56 PM
    #113
    Dr_Al

    Dr_Al New Member

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    So how hard of a job was it? I have to replace my torque converter (there was a recall on the 2007 and mine never got replaced) as the lock up portion of it isn't working correctly. I was thinking of either doing the valve body myself or sending the body out and having it done.
     
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  24. Apr 10, 2020 at 6:05 PM
    #114
    1rooster

    1rooster [OP] New Member

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    85D9EBD9-F43B-4A55-B5A0-EB9700304F6B.jpg It’s not for the faint of heart. I dissembled all the valves from top to bottom and cleaned the passage ways so it took quite some time. Some valves were easier than others. One was stubborn as crap and took me almost a hour to get back in.

    the one circled was the stubborn one.
     
  25. Apr 10, 2020 at 6:34 PM
    #115
    1rooster

    1rooster [OP] New Member

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    This is the last step you have to perform . So maybe after I get the memory reset it will do right. If they open tomorrow I may try and get it done.873658AD-3510-471D-BBDE-720ED960C0D8.jpg
     
  26. Apr 10, 2020 at 6:36 PM
    #116
    1rooster

    1rooster [OP] New Member

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    I did find a piece of trash in the B1 accumulator. Other than that it was spotless. A7145365-6D51-4B2B-9707-009E2A5E5C09.jpg 77C8BBC5-C3E7-4979-8498-ED72B3B39232.jpg

    Edit: I’m not 100% sure it even came out the accumulator bore. But I found it on the table when I was dissembling the B1.
    When I removed the retaining pin it did not feel bound up or stuck. It move freely with no gritty feeing.
     
    Last edited: Apr 13, 2020
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  27. Apr 10, 2020 at 6:42 PM
    #117
    1rooster

    1rooster [OP] New Member

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    There is a LOT of room for error. With 18 check balls 30 end caps, 9 solenoids, and a ton of valves and springs . It was challenging but doable with enough time and patience. When I put it all back together and went for my first test drive I was expecting it not to shift and blow up! But it worked and did not explode.022B72A1-7EFA-4A6E-B021-B8A0909F04AF.jpg 17B222A6-52D9-459F-83AC-3C0193B86626.jpg 24EA72F5-6A17-4395-8E8F-6BE83D84DA07.jpg 570927FD-16E3-4825-AE88-E46E74AE17B8.jpg
     
  28. Apr 10, 2020 at 6:51 PM
    #118
    8MINT8

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    RESPECT!!! Not sure if I have enough balls to try this myself.
     
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  29. Apr 10, 2020 at 7:58 PM
    #119
    JohnLakeman

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    That. Is. Awesome. Congrats. :thumbsup:
     
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  30. Apr 10, 2020 at 8:18 PM
    #120
    Tundra_power

    Tundra_power New Member

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    I had the same problem when i come to a stop and release the brake pedal i felt a jerk. I did a drain and fill on transmission 5 times and than i did a brake job at the same time i never felt it again.
     
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