need help on 1994 cummins

Discussion in 'P Pump' started by jbmobbs, Oct 29, 2011.

  1. jbmobbs

    jbmobbs Senior Member

    Posts:
    5,140
    Likes Received:
    1,461
    Joined:
    Oct 5, 2011
    Location:
    murfreesboro, tennessee
    Ram Year:
    1996
    Engine:
    5.9 360
    ok my friends 1994 dodge ram 2500 cummins has a automatic tranny and all the gears are perfectly fine has great pullin power but reverse went out could it be a sensor or vac leak or somethin like that? :think:
     
  2. jbmobbs

    jbmobbs Senior Member

    Posts:
    5,140
    Likes Received:
    1,461
    Joined:
    Oct 5, 2011
    Location:
    murfreesboro, tennessee
    Ram Year:
    1996
    Engine:
    5.9 360
    bump..
     
  3. ramhunter9

    ramhunter9 Supporting Member

    Posts:
    24,508
    Likes Received:
    884
    Joined:
    Jun 25, 2010
    Ram Year:
    2012
    Engine:
    P-Star Jeep Wrangler
    Would best soot you to post in the correct section rather than posting a bump

    I will move this to the CTD section .
     
  4. jbmobbs

    jbmobbs Senior Member

    Posts:
    5,140
    Likes Received:
    1,461
    Joined:
    Oct 5, 2011
    Location:
    murfreesboro, tennessee
    Ram Year:
    1996
    Engine:
    5.9 360
    i didnt know......its a transmission problem i didnt think it matterd so i posted it engine and tranny.....thanks for moven it to the proper section
     
  5. Badger

    Badger Senior Member

    Age:
    33
    Posts:
    1,512
    Likes Received:
    6
    Joined:
    Oct 11, 2011
    Location:
    Bettendorf, IA
    Ram Year:
    2004
    Engine:
    5.7 Hemi
    Is it throwing a code? If not top it off with fluid. If that doesn't help tranny is shot.
     
  6. Rogan68

    Rogan68 Senior Member

    Posts:
    545
    Likes Received:
    7
    Joined:
    Aug 26, 2011
    Location:
    Lancaster, TX / Winchester, VA
    Ram Year:
    2001
    Engine:
    5.9L CTD 24v 6 hole Bolt-action
    94 has the 47RH trans (no electrics), as far as I remember. Only the TPS and PCM control fluid pressure. The TV cable can be adjusted a little to increase the internal fluid pressure, making more positive shifts, or vice verse.

    no reverse could be a couple of things.

    check the obvious, like fluid level. I know with the 44RE (Jeep) sometimes the front pump will suck air past the gasket, and not engage reverse (due to a fluid pressure drop. Overfilling by a quart would 'band-aid' the issue.

    If the OD snap ring breaks, you'll lose OD and reverse.

    Valve body loose will cause fluid pressure drop, and major slipping.

    Band Adjustments

    Pulling it in manual 1 on decel, look for engine braking. If either the low/reverse band is out or the direct clutches in the OD are messed up, you'll have no engine braking in manual 1. They should both not allow you to have any engine braking. If you have drive and OD then the front clutch appears to be working.
     

Share This Page