2008 ram 1500 5.7 MDS

Discussion in 'General Discussions' started by Acrawford, Jul 11, 2018.

  1. Acrawford

    Acrawford Junior Member

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    Hi,

    I was wondering if anyone knew why my truck makes strange sounds I think its the mds. Happens when I push on the accelerator down lightly but it sounds like crap until I punch it really starting to get frustrating please someone help!!!
     
  2. Kinetic

    Kinetic Senior Member

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    You're actually in the detailing section, might try the section for your year truck to get a quicker response.
     
  3. yillbs

    yillbs Senior Member

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    when you put your truck into O/D mode ( should be at the end of the column shifter ) do you get the same lugging you're describing?
     
  4. NCRaineman

    NCRaineman Senior Member

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    Aftermarket exhaust?

    If you have loud pipes the engine does sound strange when MDS is in operation.
     
  5. Acrawford

    Acrawford Junior Member

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    When I have O/D off or in Tow mode it doesn't do it. I have stock exhaust. Sorry for posting in the detailing section my apologies.
     
  6. MikeG71

    MikeG71 U.S. ARMY VETERAN Military Member

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    Noob question alert.........

    What’s MDS?
     
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  7. NCRaineman

    NCRaineman Senior Member

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    The only stupid question is the unasked one.

    MDS... Multi-Displacement System... the engine will shut down 4 cylinders under light load conditions in order to maximize fuel economy.

    Some people like it, some people don't. If you do a lot of highway cruising it will save you on gas, but if you are like me and all over country back roads it will annoy you.

    Thankfully most tuners offer a way to disable the system so you always have all 8 cylinders on tap.
     
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  8. HemiLonestar

    HemiLonestar Senior Member Military Member

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    You were army, you know damn well there are no stupid questions....only stupid people lol. He explained it above, BUT you don't have it since you have a 3rd gen 2500.
     
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