GM Truck Club
THE PREMIER CHEVY TRUCK & SUV FORUM
Founded in 2004 ~ We're the #1 Chevy Truck & SUV Forum.
Silverado & Sierra | Tahoe & Yukon | Suburban & Yukon XL | SUV & CROSSOVER
Results 1 to 2 of 2
  1. #1
    Legend
    murdog94's Avatar
    Join Date
    Feb 2008
    Location
    Cloquet, Minnesota, United States
    Posts
    8,198
    Blog Entries
    12

    Default 4L60E loosing Fluid. But not on the ground HELP!

    Alright heres the issue. I put a quart of tranny fluid into my truck yesterday. And it had a flush recently so i wasnt to concerned. Well after a 20 miles drive i had to put in another Quart of ATF... I wasnt happy and still didnt think that much of it. Today I went out and checked it after running to my buddies house last night (about 5 miles total). Today i was over 1 1/2 quarts down again.
    I am not leaking it onto the ground. It isnt in my coolant. and my transfercase isnt pouring it out onto the ground yet either. But that is where i think it is going. I think the seal let loose and is allowing the fluid into the transfer??
    I know that the 4L80E that the hummer has for the military has a cooler that runs thru the transfer and will break allowing tranny fluid in that way. I am just not sure if my truck has the same type of cooler or if i just have a bad output seal? any help and input would be awsome since i kinda need to get this done. Oh and as a last note i have not had a chance to check the transfercase fluid level but i am not driving the truck till i get this figured out.
    Mike

    Currently

    1997 Chevy S-10 Blazer 4X4 with 330K miles and counting (Hunting rig).

    2009 Saturn Aura XE (wifes car)

    2011 F-150 Crew 4X4

    "Hold it to the floor till you see God.... Then Brake!!!!"

  2. #2
    Legend
    murdog94's Avatar
    Join Date
    Feb 2008
    Location
    Cloquet, Minnesota, United States
    Posts
    8,198
    Blog Entries
    12

    Default

    Well i think i found the culprit.. a bad output shaft seal going from the tranny to the transfer.. It will be going into the shop on monday since i dont have time to do the work myself.. Unless i get up early (fat chance) and tear into it.

Similar Threads

  1. ground affects
    By express conversion in forum Chevy Express Forum (GMC Savana)
    Replies: 5
    Last: 06-12-2011, 12:44 PM
  2. what is wrong with my tranny, loosing gears
    By kawasaki_kid in forum General Chevy & GM Tech Questions
    Replies: 5
    Last: 07-26-2010, 06:27 PM
  3. Radiator loosing coolant
    By vitaburst in forum Chevy Colorado Forum (GMC Canyon)
    Replies: 6
    Last: 03-07-2009, 08:33 AM
  4. 99 Silverado acts like it is loosing power
    By Robert1951 in forum General Chevy & GM Tech Questions
    Replies: 1
    Last: 04-12-2008, 08:08 PM
  5. loosing anti-freeze and dont know where
    By nvyseal11 in forum GM Powertrain
    Replies: 5
    Last: 11-02-2007, 01:00 AM

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •