Dismiss Notice

Welcome To CK5!

Registering is free and easy! Hope to see you on the forums soon.

Score a FREE t-shirt and membership sticker when you sign up for a Premium Membership and choose the recurring plan.

4L60E gurus...

Discussion in 'The Garage' started by Confedneck79K30, Dec 25, 2006.

  1. Confedneck79K30

    Confedneck79K30 3/4 ton status

    Joined:
    Oct 1, 2006
    Posts:
    5,384
    Likes Received:
    0
    Location:
    LA
    here's the deal, mebbe one of you gents can help a little

    99 silverado 5.3 4x4 4l60e

    govlock broke, drove it home in 4hi, replace rear axle, go to drive truck and when in D, trans just slips, sounded like the TC was knocking, was 1 qt low, filled and retried, same thing, if you manually put it into 1st, it will accelerate and move, unless you go wtfo, then it slips, same in 2nd and 3rd, im thinkin bad convertor, what do you guys think?

    tia
     
  2. dyeager535

    dyeager535 1 ton status Premium Member

    Joined:
    Dec 13, 2000
    Posts:
    26,979
    Likes Received:
    189
    Location:
    Roy WA
    Probably not, bad converters mean no movement, since that is what it needs to start moving.

    Never heard of a converter that "sort of" worked, either they work or they don't. Might make some noise and still work, but they are relatively simple, there is nothing that will allow more "slippage" when broken in a converter, that won't ruin everything else in short order.
     
  3. Confedneck79K30

    Confedneck79K30 3/4 ton status

    Joined:
    Oct 1, 2006
    Posts:
    5,384
    Likes Received:
    0
    Location:
    LA
    i was askeered a dat, gracias... time for a rebuild then im sure..
     
  4. mike reeh

    mike reeh 1/2 ton status

    Joined:
    Jul 23, 2001
    Posts:
    752
    Likes Received:
    0
    Location:
    San Diego, CA
    drop the pan and have a look....

    oddly coincidental that it happened right after you replaced the axle.

    Ive had similar things happen to a 700r4... it was usually something F'd in the valve body... if youre real brave, drop the valve body and check for any plugs that may have come out (blown out?) or something clogging passages.. just be careful of the location and number of check balls....

    keep us posted
     
  5. Confedneck79K30

    Confedneck79K30 3/4 ton status

    Joined:
    Oct 1, 2006
    Posts:
    5,384
    Likes Received:
    0
    Location:
    LA
    well its not my truck and it was slipping on his way home with the broken axle, so i imagine he caused some overheating..
     
  6. NateInChandler

    NateInChandler 1/2 ton status

    Joined:
    Apr 23, 2006
    Posts:
    418
    Likes Received:
    0
    Location:
    Chandler, AZ
    have someone scan it and see if it as a p1870 code, if it does and the fluid is still good and pan is clean you can fix it with some pump and valve body mods while its in the vehicle.. if the fluid is dark and burnt, its too late and he needs a o/h... Nate
     
  7. jac6695

    jac6695 1/2 ton status

    Joined:
    May 2, 2002
    Posts:
    1,860
    Likes Received:
    0
    Location:
    Christiansburg, VA
    Does the truck have Autotrac(k)? Sounds like the transfer case could be the culprit. Have you tried any other gear in the case? AFAIK, the Autotrac cases have clutches in them like the transmission, and when they fail, you have slippage and no go power. Could have killed it on the way home with the dead rear.
     
  8. Confedneck79K30

    Confedneck79K30 3/4 ton status

    Joined:
    Oct 1, 2006
    Posts:
    5,384
    Likes Received:
    0
    Location:
    LA
    fluid is clean and red... ill check it for a code this weekend, thanks, ill also look into that autotrac, what tcase would it have?
     
  9. kennyw

    kennyw N9PHW Premium Member

    Joined:
    Jun 9, 2002
    Posts:
    13,223
    Likes Received:
    94
    Location:
    Stevens Pass Highway, WA
    My guess would be a damaged tcase from driving on the pavement in 4 hi as well.
     

Share This Page