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1999 Ram 2500 4x4 not working

Discussion in 'Ram Trucks' started by Yoman, Jan 29, 2007.

  1. Yoman

    Yoman Junior Member
    from Toronto
    Messages: 19

    I have a 1999 Ram 2500 , Today i shifter to 4x4 lo or hi and doesn't work ??? How can i make it work ??? Pls help ....
    Thanks .
  2. TBJ

    TBJ Junior Member
    Messages: 4

    I had that problem with a 97. Found out the battery acid had eaten a hole in the cruise control vacuum line under battery tray. The hubs are vacuum activated.
  3. motoxdk24

    motoxdk24 Member
    Messages: 57

    like he said above, vacuum activated, check the lines...i think they are red and black..... passenger side on the axle itself looks like a little motor

    THEGOLDPRO PlowSite Veteran
    Messages: 3,136

    had this problem with mine last year, mine wasnt a vacumn line, i guess there is a small pin type thing that locks into the front axle to engage 4wd, mine broe and would go in sometimes, and pop out , then go in again for a bit, and pop back out, it was like a $3 dollar part, but it broke on me.
  5. Yoman

    Yoman Junior Member
    from Toronto
    Messages: 19

    Replace 4x4 plunger kit now 4x4 lo and hi is working but 4WD light not shut off when i running 2wd why ???? Any input ???? Pls help .....