cascadia 2012 fuel pressure issues

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by 4noReason, Jul 3, 2019.

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  1. Jul 3, 2019 #1
    4noReason

    4noReason Road Train Member

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    ok guys. ive been broken down since sunday morning. im 2600$ out just for repair so far. not inclluding hotel and food. computer showed fuel pressure sensor then it showed fuel quantity valve selenoid. repaired both. computer is showing same exact things the shop repaired after it was replaced. it cranks but once you think itll go on it chokes out. any idea what it is. im fixing to tow it from arkansas to illinois. dd15 cascadia 830k miles. 2012
     
    4noReason, Jul 3, 2019
    4noReason, Jul 3, 2019
    #1
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  3. Jul 3, 2019 #2
    QUALITYTRUCK

    QUALITYTRUCK Road Train Member

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    Pull fuel filters out and look for metal shavings in bottom of filter module. Take flashlight and look for metal in bottom of fuel tanks. Report back findings.......
     
    QUALITYTRUCK, Jul 3, 2019
    QUALITYTRUCK, Jul 3, 2019
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  4. Jul 3, 2019 #3
    mhyn

    mhyn Road Train Member

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    post exact fault codes in format spn xxxx fmi xx . Fueling at cheap truckstops alot ? where did you get fuel last time ?
    You are in wrong shop. Not every shop can handle the fuel system of DD15. This is the case when all troubleshooting must be done according to fault code and not by friend mechanic suggestion. What I am thinking you have bad fuel pump. Prey to god that you will not have metal shavings in fuel tanks. If fuel pump is bad all high pressure lines must be removed and checked for debris.
     
    mhyn, Jul 3, 2019
    mhyn, Jul 3, 2019
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  5. Jul 3, 2019 #4
    4noReason

    4noReason Road Train Member

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    it was spn 94. once sensor replaced it went to spn 194. once selenoid changed i have nothin. i do get a ecm 1 or 0 at start but it goes away. i git spn 522116 i think or something like that. but thats the temp outside sensor. im comin back with a tow. but im just worried.
     
    4noReason, Jul 3, 2019
    4noReason, Jul 3, 2019
    #4
  7. Jul 3, 2019 #5
    JonJon78

    JonJon78 Road Train Member

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    How many miles are you having it towed? That's gotta be a lot of money.
     
    JonJon78, Jul 3, 2019
    JonJon78, Jul 3, 2019
    #5
  8. Jul 3, 2019 #6
    mhyn

    mhyn Road Train Member

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    rail pressure must be monitored during starting(when starter turns engine to start). That shop should have checked to see if there was a 150 bar (2176 psi) rail pressure during starting.
     
    Last edited: Jul 3, 2019
    mhyn, Jul 3, 2019
    mhyn, Jul 3, 2019
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  9. Jul 3, 2019 #7
    mhyn

    mhyn Road Train Member

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    Symptom Diagnostics - Hard Start/No Start - Three-Filter Fuel System
     

    Attached Files:

    mhyn, Jul 3, 2019
    mhyn, Jul 3, 2019
    #7
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  10. Jul 3, 2019 #8
    Intothesunset

    Intothesunset Road Train Member

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    Sething I've read about o rings and such for fuel filters getting cut.
     
    Intothesunset, Jul 3, 2019
    Intothesunset, Jul 3, 2019
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  11. Jul 3, 2019 #9
    4noReason

    4noReason Road Train Member

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    ya my shop called em on phone. and had him check. i saw it with him. it was at 3400 psi during crank.
     
    4noReason, Jul 3, 2019
    4noReason, Jul 3, 2019
    #9
  12. Jul 3, 2019 #10
    4noReason

    4noReason Road Train Member

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    im going back to my terminal. getting a truck with a tow bar n taking it back. just paying the fuel. 700 miles tow
     
    4noReason, Jul 3, 2019
    4noReason, Jul 3, 2019
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    JonJon78 Thanks this.
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