Results 1 to 3 of 3

Thread: 6.5 surging, black smoke

  1. #1
    Join Date
    Nov 2019
    Location
    Utah
    Posts
    2

    Default 6.5 surging, black smoke

    Hi everybody, looking for some advice

    My Savana school bus started surging when I topped out on a hill. I took it to a shop and they said they got a code for the accelerator position sensor, and fixed a pinched o ring at the fuel filter. I replaced the accelerator assembly.

    Now it’s not giving any codes, but idles up and down on its own after start up, putting out black exhaust (which it wasn’t doing before)

  2. #2
    Join Date
    Nov 2019
    Location
    Utah
    Posts
    2

    Default Hahahaha

    Cool, thanks for the help y’all

  3. #3
    Join Date
    Jan 2001
    Location
    New Hampshire - Live Free or Die
    Posts
    6,057

    Default

    You didn't give us much to go on.

    What year is it? Was there any change between the pinched o-ring and changing the APP? What was the code?

    Could be a lot of things. First thing I'd do is check the fuel delivery to the injection pump. Then I'd put a scanner on it and see what the pump is (trying) to do when it's acting up.
    The Constitution needs to be re-read, not re-written!

    If you can't handle Dr. Seuss, how will you handle real life?

    Current oil burners: MB GLK250 BlueTEC, John Deere X758
    New ride: MB GLS450 - most stately
    Gone but not forgotten: '87 F350 7.3, '93 C2500 6.5, '95 K2500 6.5, '06 K2500HD 6.6, '90 MB 350SDL, Kubota 7510

Similar Threads

  1. Lots of black smoke and no power 6.5 diesel
    By Ryanr8 in forum 6.5L Turbo Diesel - Tech Support - Troubleshooting - Performance
    Replies: 7
    Last Post: 05-15-2017, 12:01
  2. Black smoke fromLB7
    By Cpt in forum Duramax 6600
    Replies: 4
    Last Post: 09-19-2014, 15:09
  3. 6.5 surging, black smoke
    By joshsiller in forum 6.5L Turbo Diesel - Tech Support - Troubleshooting - Performance
    Replies: 18
    Last Post: 06-07-2009, 22:41
  4. Tons of black smoke, after driving.
    By hockeyGTP in forum 6.5L Turbo Diesel - Tech Support - Troubleshooting - Performance
    Replies: 4
    Last Post: 09-20-2007, 23:04

Posting Permissions

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