Thread: Hemi Oil Pressure

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  1. #1 Hemi Oil Pressure 
    My avatar isn't animated Lifetime Supporter SirFuego's Avatar
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    2007 Ram 1500 5.7L Hemi

    What is "normal" oil pressure at idle (not at startup)? I never really took note and got a CEL for low oil pressure last night.

    I know this is within the acceptable range, but is this "normal":


    I got a CEL yesterday for low oil pressure. I was way overdue for an oil change, so I hoped that would fix the problem. Everything "looks" fine with the oil pressure, but I just want to be sure that my idling pressure is "normal". I'm getting the CEL reset ASAP so I can see if it comes back, but just figured I would post up to get opinions.
    Quote Originally Posted by SB406
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  2. #2 Re: Hemi Oil Pressure 
    ....... Lifetime Supporter rstrucks's Avatar
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    My guess is that the guage is nearly worthless and nothing more than a glorified idiot light. To get an accurate reading you'll have to plumb a real oil pressure guage.
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  3. #3 Re: Hemi Oil Pressure 
    Member 96JGCL's Avatar
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    Quote Originally Posted by rstrucks View Post
    My guess is that the guage is nearly worthless and nothing more than a glorified idiot light. To get an accurate reading you'll have to plumb a real oil pressure guage.

    ding ding ding


    god bless mopars
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  4. #4 Re: Hemi Oil Pressure 
    My avatar isn't animated Lifetime Supporter SirFuego's Avatar
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    Fair enough. I'll get the light reset and see if it comes back.
    Quote Originally Posted by SB406
    I think that's your signature move.
    "The Former"- Lay Jeep against obstacle in trail. Mat gas pedal. Form Jeep to the shape of obstacle.
    Robot
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  5. #5 Re: Hemi Oil Pressure 
    Senior Member Jeeptech01's Avatar
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    There is a flash update to fix that issue. Stop by a dealer and see if it applies to your truck. They can tell by the vin. If you are under 80k mi it should be free.
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  6. #6 Re: Hemi Oil Pressure 
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    The 5.7s with the MDS don't like you missing oil changes. Something about that messing up the delicate system.
    Last edited by iluvtruenos; 09-27-2010 at 09:55 PM.
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  7. #7 Re: Hemi Oil Pressure 
    Senior Member Jeeptech01's Avatar
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    They put msd ignitions on Dodge now? Or did you mean MDS (multiple displacement system)

    No cars like missing oil changes. The mds system however, does not like the incorrect oil and can set a dtc oddly entitled incorrect engine oil. 5w 20 only.
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  8. #8 Re: Hemi Oil Pressure 
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    Quote Originally Posted by Jeeptech01 View Post
    They put msd ignitions on Dodge now? Or did you mean MDS (multiple displacement system)

    No cars like missing oil changes. The mds system however, does not like the incorrect oil and can set a dtc oddly entitled incorrect engine oil. 5w 20 only.
    I don't know what you're talking about.

    See, it clearly says "MDS" not "MSD"!

    I think you're going crazy.







    (Thanks for correcting me btw)
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  9. #9 Re: Hemi Oil Pressure 
    Senior Member Jeeptech01's Avatar
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    Last edited by iluvtruenos; Yesterday at 09:55 PM LOL
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