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  1. #1

    Default 1999 silverado 5.3 trans issues or transfer case????????

    99 silverado 5.3 engine 4x4.electronic shift 4x4. symptoms .. are the truck does not move while engaged into 2wd. but i can hear something moving underneath , im only one person so i have not had someone look as to whats moving sounds like a driveshaft or something. when i put into 4x4 the truck drives ??? is this transfer case or transmission?

  2. #2

    Default

    Could be your rearend. Put it in 4lo and on dirt, try to spin the tires. If it's the rear it will only spin the front. If all 4 spin, Go get a new T case

  3. #3
    Jr. Apprentice
    Join Date
    Sep 2011
    Location
    Campbell River, B.C.
    Posts
    21

    Default

    It does sound like a rear-end issue. As stated put it into 4-wheel and check tire spin. Hopeully it is just a minor problem in the rear, but it could be nasty if something sheared. Was there any rough driving lately? or did this appear out of no-where?
    Rob - Campbell River, B.C.
    1997 GMC Jimmy SLT
    2007 Chevy Silverado 1500 LS 4x4

  4. #4

    Default

    does it doesnt sound like a trans issue?

  5. #5
    Sr. Apprentice
    Join Date
    Aug 2011
    Location
    Massachucetts
    Posts
    40

    Default

    i wouldnt recommend spinning tires as a diagnostic tool, will just cause more damage. but if the driveshaft spins but no movement of truck then that is a rear-end issue, and just because you seem confused on why you move in 4x4 is because your front driveshaft is moving so that would lead me away from the transfer case
    Stephen- Massachusetts
    2001 Chevy Silverado

    Dear Members, I'm not a certified mechanic i just have a decent knowledge and about 4 years of hands on experience, I'm no way close to a expert but I'm trying to give my best input so bear with my responses please, thanks

  6. #6

    Default

    Quote Originally Posted by steverocks6 View Post
    i wouldnt recommend spinning tires as a diagnostic tool, will just cause more damage. but if the driveshaft spins but no movement of truck then that is a rear-end issue, and just because you seem confused on why you move in 4x4 is because your front driveshaft is moving so that would lead me away from the transfer case

    10-12" isn't going to mess up anything else in the dirt. All he's got to do it just make a mark. He can also remove the rear diff cover and look at the gears. Should be able to tell if it's broken.

    Does the truck have push button 4wd? The actuator could not be ingauging 2wd and staying in neutral.

  7. #7
    Sr. Apprentice
    Join Date
    Aug 2011
    Location
    Massachucetts
    Posts
    40

    Default

    he said it was electric shift and the actuator doesnt ingauge 2wd it engages 4wd. and its not the distance traveled as i suggested looking at the drive shaft, its the spinning of tires, there is no need to put strain on tranny, trans case, or rear-end when one of them could be messing up. but just buy the symptoms he stated im pretty sure the rear-end went

  8. #8

    Default

    I missed the electric shift part. He also said he's working by himself, spinning the tire a little is safer than crawling under it with it in gear.

  9. #9

    Default

    i will def have two people so i can check if the drive shaft is turning,, can i rebuild the rear end or do i have to buy a whole rear end.. i seen the junk yard asking good money for them

  10. #10

    Default

    You can rebuild it, It can cost between 150-700.00 just for parts, depending on whats broken.

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