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2009 Laramie 4th gen engine dies randomly.

Discussion in 'Engine & Performance' started by Hardcoretexan, Jan 16, 2020 at 10:46 AM.

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  1. Hardcoretexan

    Hardcoretexan Junior Member

    Age:
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    Joined:
    Jun 17, 2015
    Ram Year:
    2009
    Engine:
    5.7
    Recently my truck has started dying, at first it would occur if I hit the brakes hard(didn't think much about it), now it has started dying more frequently and without any notice(still random). It always starts back up and runs(except once, I had to restart twice) and goes on. Its almost like the power or fuel gets shut off and its not like its when I hit a pot hole or anything, it has me stumped.
    Plugs were changed at 100k, everything is pretty much stock, no mods or add-ons either.
    Any help would be appreciated.
     
  2. Fast69Mopar

    Fast69Mopar Senior Member

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    Location:
    Texas
    Ram Year:
    2004
    Engine:
    5.7 HEMI
    Its time to get a scan tool hooked up to this truck. Perform a wiggle test first on all relative sensors like the crank position sensor, cam position sensor, map sensor, etc. With a scan tool we can see if any sensors are losing their signal while driving. We can also take a look at the adaptive memory to see what is going on with the fuel control. Your basic scan tool from O'Reilly or Auto Zone wont do it. Gonna need a good scan tool like the WiTech or something like a Snap-On Solus Pro or a Verus.
     
  3. Jtblackram

    Jtblackram Member

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    Location:
    Long Island
    Ram Year:
    2018
    Engine:
    5.7 Hemi
    This might be silly, but how often do you change your oil? Ive seen a truck come into my old shop before, customer stated it was stalling out, we found out he hadnt changed his oil in 30 thousand miles.
     
  4. jmd4100

    jmd4100 Member

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    Ram Year:
    2007
    Engine:
    5.7 Hemi
    Does this happen all the time or only after a fill up on fuel? I've seen a lot of trucks with evap issues stall out after a fill up from basically liquid fuel going where only vapors are supposed to be. I'd get a scan tool out and run a test. If it occurs frequently enough that you know it's going to do it, keep the tool on and run tests while driving till it stalls

    Sent from my SM-N975U1 using Tapatalk
     

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