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L10 Cummins ISSUE- one day great oil pressure and next day the alarm goes off. Every day is a gamble

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by DumpsterDaddy, Jul 31, 2019.

Page 3 of 3
  1. Jul 31, 2019 #21
    ClineER

    ClineER Light Load Member

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    Apr 27, 2016
    N.E. Oklahoma
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    Curious since it's an L10 is it an E? I have had many oil pressure sensors from those series engines be bad one day and read fine the next.
     
    ClineER, Jul 31, 2019
    ClineER, Jul 31, 2019
    #21
    Intothesunset, DumpsterDaddy and Dave_in_AZ Thank this.
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  3. Jul 31, 2019 #22
    Dave_in_AZ

    Dave_in_AZ Road Train Member

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    May 4, 2015
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    Oil pressure switch, oil sending unit. Those are like $20 each. Bad wiring to either one.

    As was posted, mechanical problems on these big engines don't come and go. They come and stay and get worse.
     
    Dave_in_AZ, Jul 31, 2019
    Dave_in_AZ, Jul 31, 2019
    #22
    Intothesunset, Bean Jr. and DumpsterDaddy Thank this.
  4. Jul 31, 2019 #23
    DumpsterDaddy

    DumpsterDaddy Bobtail Member

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    Jul 31, 2019
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    Yeah it smokes more when it happens and runs rough. That’s where I was thinking it was the regulator maybe. I’m going to confirm everything this week on pressure gauge for myself rather than just rely on mechanic though
    It’s l10-300
     
    DumpsterDaddy, Jul 31, 2019
    DumpsterDaddy, Jul 31, 2019
    #23
  5. Aug 2, 2019 #24
    xsetra

    xsetra Road Train Member

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    xsetra, Aug 2, 2019
    xsetra, Aug 2, 2019
    #24
  6. Sep 19, 2019 #26
    ScottClardy

    ScottClardy Bobtail Member

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    Sep 19, 2019
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    Did you ever find the cause of the low oil pressure? I’ve got the same problem.
     
    ScottClardy, Sep 19, 2019
    ScottClardy, Sep 19, 2019
    #26
  7. Sep 20, 2019 #26
    ScottClardy

    ScottClardy Bobtail Member

    4
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    Sep 19, 2019
    0
    My L10 is doing the same thing. Did you ever find the problem?
     
    ScottClardy, Sep 20, 2019
    ScottClardy, Sep 20, 2019
    #26
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