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Thread: Oil Pressure/Oil Cooler 3.2/3.5

  1. #1
    Join Date
    Dec 2011

    Default Oil Pressure/Oil Cooler 3.2/3.5

    i remember seeing a thread on oil coolers at one point in time and then i believe the main consensus was they weren't really needed however after installing an oil pressure gauge i think i see why some models may have had them. my wife's 01 intrepid has a 3.5 from an 04 and after it has come up to temp the oil pressure is running around 4-5 psi at a stoplight. idle is set to about 650 rpm. at cold start the pressure is in the 90's and drops steadily as the temp comes up. the factory setup was a bit wonky with the pressure valve and all so i'm toying with the idea of running a spacer between the oil filter and the block and running 100% of the oil thru a cooler before it reaches the engine. Has anyone done this already? Ran into any issues? I've also entertained the thought of taking it to a dealer and having them set the idle up in the 800-850 range. the oil pressure at that rpm comes up to 14-15 psi which i find much more acceptable.

    After seeing this it seems to me that extended idle has probably killed many of these engines.
    2001 Intrepid SE 3.5

    1994 Ram 2500 Cummins 4x4

    1998 Durango 5.2 4x4

  2. #2
    Mopar or No Car D76G12's Avatar
    Join Date
    Dec 2011


    Just curious - what weight oil are you using?

  3. #3
    Senior Member
    Join Date
    Aug 2008


    Oil pressure well within spec. 5 psi Idle / 45-105 @ 3000.

    Vice President of :

  4. #4
    Devilish Eagle EagleESi's Avatar
    Join Date
    Nov 2007


    My oil pressure gauge shows alot different. I have it teed in where the stock sender is. I have 50-75 cold, 25psi @ idle hot. 50-70 psi driving above 1500 rpms.
    AutoX, Road Atlanta, Tail of the Dragon..What's Next?

    Eagle's Sig

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