Results 1 to 7 of 7
  1. Collapse Details
    Dodge 5.9 vs 6.7
    #1
    I am going to have to get a new truck this spring and contemplating whether to find a barely used 5.9L or get a new 6.7L. I have already experienced the issues with the weak torque converter on the current tow rig (05 3500 SRW with 4.1 Rear End). Was just curious if the exhaust break and beefier tranny make up for the loss on fuel economy and O2 sensor issues on the new ones.

    I appreciate the feedback.

    -Josh
    Reply With Quote
     

  2. Collapse Details
     
    #2
    Charter Member
    Join Date
    Oct 2008
    Location
    Cedar Creek Texas
    Posts
    73
    I haven't heard many good things about the new engine. Most of the comments on Dodge diesel sites seem to indicate that people are going to great lenghts to try to find a 5.9. Most negative comments seem to center around the new emission equiptment and the poor mileage.
    Jay
    Reply With Quote
     

  3. Collapse Details
     
    #3
    I have read much of the same. Part of me is hoping they worked the bugs out but it is looking like I might be better off to find a barely used 05 or early 06.

    The great thing about the 5.9 was the dependability and fuel economy sounds like they might have shot themself in the foot with the 6.7.
    Reply With Quote
     

  4. Collapse Details
     
    #4
    Registered Expensive Date's Avatar
    Join Date
    Oct 2008
    Location
    South Jersey
    Posts
    1,333
    I went through the same decision before I bought my GMC.I like the Dodge but everyone I asked told me they have a lot of problems with the particulate filter.It is supposed to be fixed this summer with a recall though.Heard the are using a redesigned turbo.But I am in shops every day and the duramax has the least problems of the three. Good luck
    Reply With Quote
     

  5. Collapse Details
     
    #5
    Infamous catmando's Avatar
    Join Date
    Nov 2008
    Location
    Arlington, Tx.
    Posts
    510
    Quote Originally Posted by baywatch View Post
    I am going to have to get a new truck this spring and contemplating whether to find a barely used 5.9L or get a new 6.7L. I have already experienced the issues with the weak torque converter on the current tow rig (05 3500 SRW with 4.1 Rear End). Was just curious if the exhaust break and beefier tranny make up for the loss on fuel economy and O2 sensor issues on the new ones.

    I appreciate the feedback.

    -Josh
    My suggestion is to keep your truck and put an aftermarket tc and exhaust brake on it. Go to www.cumminsforum.com for more information. If you must have a dually, low-mileage 5.9s will be hard to find so start your search now. Anything under 200,000 miles is low mileage for a Cummins. You know from chat that mine is for sale but you said you need an automatic so good luck.
    Reply With Quote
     

  6. Collapse Details
     
    #6
    Infamous catmando's Avatar
    Join Date
    Nov 2008
    Location
    Arlington, Tx.
    Posts
    510
    Reply With Quote
     

  7. Collapse Details
     
    #7
    Registered 35 Lightning's Avatar
    Join Date
    Aug 2009
    Location
    Southern, IL.
    Posts
    34
    Mine is a 2005 model 2500, Cummins 5.9L diesel, bought new , the 05's came with the heavier duty 48 RE auto. trans., I have 213,500 miles, never any problems ,in fact i haven't had any breakdowns at all, change oil & fluids regularly, still like new, uses No oil on 10,000 mile changes, pulls my 35 Lightning great, fuel mileage towing my boat is 13 to 13.5 consistently w/3.73 ratio, I would buy an 05 or 06 ,same drivetrain .
    Reply With Quote
     

Posting Permissions

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