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Search results

  1. M

    97 4L80E dropping out of TC lock up

    what actually happened is this. usually i had those issues going down the interstate at 55+ mph... it dropes out of 4th, revs up to 5k untill i stop it by switching it to 3rd. this time i was just doing 40 when it slipped into 4th while OD was selected. but my first gear usually is a downshift...
  2. M

    97 4L80E dropping out of TC lock up

    but if my approach does crapp out, meaning my conclusion was wrong, wouldn't be the first, will for sure eure not be the last time, and/or my then performed pigtail testing will confirm outside of transmission case as reasons for acting up, i would like to come back to your very kind offer. if...
  3. M

    97 4L80E dropping out of TC lock up

    it probably would. if yours doesn't have a TCM or TCCM (Transmission Control module or transfer case control modul. but then your controling transmission and engine so its not an ecm engine control module but a pcm a powertrain control module) but going though the Canadian borde today, i...
  4. M

    97 4L80E dropping out of TC lock up

    and just to be precise, you can actually go from Prudhoe Bay Alaska to Key West Floriada and drive 5503 miles in an almost straight line, but it would include a real sizable chunk of Miles driven outside of the US in Canada.... like about a 1/3 of it.
  5. M

    97 4L80E dropping out of TC lock up

    that's why i now get my self an external pig tail, hook it up, and do my due diligence next. then i have a clear understanding if the funny behavior comes from inside or outside of the transmission housing. then we move from there. firing the parts cannon (a full rebuild is nothing else)...
  6. M

    97 4L80E dropping out of TC lock up

    i know that Americans are notoriously bad in geography... the US isn't big enough to drive 5000 miles in a straight line. from Seattle to Miami is 5500 kilometers, not miles. and my MH fore sure doesn't float. so no, i cant drive it in 3rd home and do it im my shop besides, even if i ship...
  7. M

    97 4L80E dropping out of TC lock up

    yes i know. but try hooking a multimeter to the transmission under a MH while test driving it while being alone.
  8. M

    97 4L80E dropping out of TC lock up

    and a friendly sould came forward with a test schematic. so my next thing is get a external pig tail and make sure my problem is inside the trans vs outside the trans... then we can do qualified assumptions on what's actually wrong... we basically will make qualified asses out of u and...
  9. M

    97 4L80E dropping out of TC lock up

    and one more thing, if im going for a full rebuild, ill do it my self. then i know its done right. so all the shop techs can stop licking their fingers.
  10. M

    97 4L80E dropping out of TC lock up

    if you comment on a thread, pls, first read it. thats all stuff discussed 2 pages earlier. ive done transmission rebuilds, i own a very special shop, where folks come to when other shops can't fix it by plentiful throwing parts at it... but im 5000 miles away from my tools and have a...
  11. M

    97 4L80E dropping out of TC lock up

    while its almost 30 years old now, my trans is just past 60k miles young, mostly driving by on old guy treating his new RV with soft paws... from what i see, i dont feel that this trans is dead. i do also own a burned Ford AOD, burned by the rip off a tourist trap in Atlantic City that was...
  12. M

    97 4L80E dropping out of TC lock up

    after todays issue with the MAF i probably order a new one too. i tried 2 from O'Reilly, both over reported by 15-20%, not acdelco though. i probably order one through rockauto. and i add that harness and a filter, and while i change that i check for that broken spring. going to be next week...
  13. M

    97 4L80E dropping out of TC lock up

    i think it was some sort of knocking, came mostly from bank 2. i think i need to go though my ground points. make sure they are good. i also need to get some needles and alligator clips to back probe the PCM. ive been musing about the health of the PCM too. but then, its up above the...
  14. M

    97 4L80E dropping out of TC lock up

    also could be knocking from bank 2
  15. M

    97 4L80E dropping out of TC lock up

    what do you make of this TC chatter? a restart fixed it. 2 videos: (still uploading if you dont see 2 https://photos.app.goo.gl/yxhX7tVucUs746kD7
  16. M

    97 4L80E dropping out of TC lock up

    im basically in Seattle already
  17. M

    97 4L80E dropping out of TC lock up

    thank you, but unfortunately thats 2 h behind me
  18. M

    97 4L80E dropping out of TC lock up

    i could check that on the next oil change...
  19. M

    97 4L80E dropping out of TC lock up

    and once more
  20. M

    97 4L80E dropping out of TC lock up

    check the time stamp, the rest
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