3406B unknown part

Discussion in 'Trucks [ Eighteen Wheelers ]' started by dr1c, Jun 3, 2011.

  1. dicky

    dicky Bobtail Member

    31
    8
    Aug 16, 2008
    st.paul , mn.
    0
    was this engine originally a PEEC ? If so they did have a change for the oil pressure sensor. Originally they were incorporated into the transducer on the end of the peec pump. After issues with it leaking oil into the transducer and eventually it would fail , they did a remote oil pressure sensor update and that was about where they were located.
     
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  3. Les2

    Les2 Road Train Member

    5,150
    2,288
    Jul 25, 2008
    kicked back in my lazyboy...
    0
    I seen the 2 wires running above it and thought they was what you were talking about.

    Dicky is probably right on this one.
     
  4. dave26027

    dave26027 Road Train Member

    1,284
    804
    Sep 10, 2009
    Dallas, Texas
    0
    Turn off the engine. Unplug the part. Start the engine. Check for fault codes. If there aren't any, it's not important.
     
  5. dr1c

    dr1c Light Load Member

    75
    11
    Apr 10, 2011
    Alberta
    0

    No codes...does not effect engine just wondering what this thing Is or was

    Cant find a mechanic that knows,then again had a pump tool the other day and they had to keep guessing what it was.....lol
     
  6. dr1c

    dr1c Light Load Member

    75
    11
    Apr 10, 2011
    Alberta
    0

    I dont think so it came to us used a few years ago,It's a : 3ZJ58401

    Comes up a "C" block
     
  7. booboo

    booboo Bobtail Member

    39
    4
    Jan 17, 2009
    gainesville,ga
    0
    I am going to guess an oem coolant temp warning sensor. Looks like it should go in the plug just behind the block heater wire in the picture.
     
  8. dr1c

    dr1c Light Load Member

    75
    11
    Apr 10, 2011
    Alberta
    0

    That could be...I think I'll trace the wires if I can when I have time
     
  9. jeffb11

    jeffb11 Bobtail Member

    7
    0
    Jan 8, 2011
    Wellington, Fl
    0
    Its a coolant temp sensor
     
  10. jeffb11

    jeffb11 Bobtail Member

    7
    0
    Jan 8, 2011
    Wellington, Fl
    0
    probably running the fan or a warning light
     
  11. jeffb11

    jeffb11 Bobtail Member

    7
    0
    Jan 8, 2011
    Wellington, Fl
    0
    They made the peek in both b and c series, but that is not a cat sensor, and its in water not oil
     
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