Paccar problem codes help?

Discussion in 'Peterbilt Forum' started by Oldironfan, Jun 27, 2018.

  1. Oldironfan

    Oldironfan Road Train Member

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    20180627_222523.jpg I don't know what to think. Just an hour ago the boss put a new surge tank on. And did a pm? 20180627_222523.jpg 20180627_222629.jpg
     
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  3. Judge

    Judge Road Train Member

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    FM1209 could be the exhaust gas pressure sensor
    Spn111 is a coolant level/sensor code
    Spn 77 exhaust back pressure fault
     
    Oldironfan Thanks this.
  4. Oldironfan

    Oldironfan Road Train Member

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    Only the 1209. And 77 are showing now. So I guess I'll just keep going.
     
  5. peterbilt1999

    peterbilt1999 Bobtail Member

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    that sounds like the thing to do. o well not my truck and what did the boss tell you to do
     
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