truck jerks (ses lites sometimes) no code

Discussion in '99+ 7.3L PowerStroke Engine & Drivetrain' started by jestersv, May 23, 2007.

  1. jestersv

    jestersv 7.3 addict

    Messages:
    230
    Likes Received:
    0
    Joined:
    Mar 7, 2006
    Location:
    waterloo il //stl.louis
    running down the road no set speeds truck jerks (like it died and pop started which it is probably doing) (towing or unloaded) at slow speed it might die not often (stick shift) sometimes ses lite comes on no code set shut off restart ses lite gone happens more frequent when raining this is 99 7.3 stick 4" exhaust and air raid filter all else bone stock any ideas?
     
  2. W4RLR

    W4RLR High Tech Hillbilly

    Age:
    64
    Messages:
    1,184
    Likes Received:
    0
    Joined:
    Jun 8, 2005
    Location:
    Sewanee, TN
    I did have to read your post to clear things up. I thought you were referring to the denizens and proprietor of The Diesel Stop.:D
     
  3. Sleeper Diesel

    Sleeper Diesel Full Access Member

    Messages:
    164
    Likes Received:
    0
    Joined:
    Jul 3, 2006
    Location:
    Annapolis MD
    sounds like a camshaft position sensor problem, mine did the same thing last time it went bad.
     
  4. BigDaveZJ

    BigDaveZJ uber noob

    Messages:
    225
    Likes Received:
    0
    Joined:
    Sep 30, 2006
    Location:
    Castle Rock, CO
    Make sure you're using a code reader that can actually read your truck too, most of the regular scanners can NOT read them.
     
  5. TozziWelding

    TozziWelding Onsite and On Time

    Age:
    40
    Messages:
    2
    Likes Received:
    0
    Joined:
    May 16, 2007
    Location:
    Plymouth, The Peoples Republik of MA
    Sounds like you need a new throttle pedal to me.
     
  6. action4478

    action4478 Full Access Member

    Age:
    65
    Messages:
    302
    Likes Received:
    0
    Joined:
    May 16, 2006
    Location:
    Muskegon Mi
    A new CPS is now a cheap test , it would be a good place to start....
     
  7. sagebel

    sagebel Stock? Pfft!

    Messages:
    996
    Likes Received:
    0
    Joined:
    Apr 2, 2005
    Location:
    Albuquerque, NM
    My truck did almost the same thing to me on Friday on my way to Greensboro, NC. We were passing through Charlotte and was doing about 75mph, came up on traffic and while slowing quickly (not panic) the truck just shut down. Put it in neutral, re-started it, continued driving. Did the same thing a few miles later while slowing from 50 to 30. Same recovery. After that the truck would occasionally buck and jerk a couple times but not shut down. Changed out the CPS in the hotel parking lot yesterday morning and had no problems on the trip back today. I think the truck actually ran smoother today (also had a slight knock on Friday). Mileage up a hair as well. Note: Do not buy a CPS that is more than $30 (give or take) When I cleaned out the truck after our move, I also took out my box of spare stuff so I had to buy a new CPS. The first stealership wanted $156. When asked about the $30 CPS they said all they had was the older model. The second dealership I went to only had the newer design. They had sold all of their old models so they had the new ones.

    Scott
     
  8. kbaxter

    kbaxter SDD Junior Member

    Messages:
    13
    Likes Received:
    0
    Joined:
    Apr 4, 2007
    Location:
    Boise, ID
    Some really rough and jerking type behavoir could be a bad Injection Control Pressure Sensor (ICP). Mine went out last Friday and had to be towed home (wouldn't start) then Saturday morning it fired right up and was hunting up and down when idling. Monitored the pressures, and at idle it should be about 500psi, and it was nearly 1000 psi.

    Swapped it and then was able to get out of town for 2 days.
     
    Last edited: May 28, 2007
  9. sagebel

    sagebel Stock? Pfft!

    Messages:
    996
    Likes Received:
    0
    Joined:
    Apr 2, 2005
    Location:
    Albuquerque, NM
    That was my second guess. I also bought one $$$. Didn't have to install it though. Just thought I'd get it so I wouldn't be stranded on a Sunday.

    Scott
     
  10. jestersv

    jestersv 7.3 addict

    Messages:
    230
    Likes Received:
    0
    Joined:
    Mar 7, 2006
    Location:
    waterloo il //stl.louis
    I thought that when the cps went out you were done this is just a quick miss but I understand what you guys are saying I guess I should change it anyway I got 178*** miles on this one its the original.
     

Share This Page