Fill/expansion tank over pressurizing?

Discussion in 'KJ General Discussion' started by oblivionnewtonjohn, Dec 7, 2018.

  1. oblivionnewtonjohn

    oblivionnewtonjohn Full Access Member

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    I've noticed some coolant residue on the tank, below, for a few months, but the level has remained unchanged. I flushed, replaced pump, hoses this time last year. I checked the oil every change for milkiness, no telling coolant residue. The temp gauge always hands steady a tick below the center.

    Today, I noticed some coolant odor, popped the hood and see the upper small hose bubbling. I squeezed the upper and lower, flow seems to be good and not blocked. Confused as to what's occurring here.

    Pics:
    https://1drv.ms/f/s!Av5WYhcYlOzDkMwI_85w4GIEIS8azQ
     
  2. LibertyTC

    LibertyTC Well-Known Member Staff Member Moderator

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    Your Stant cap is only rated to 13 psi Mopar = 16 psi, get a new Mopar cap & see if that solves the problem.
    [​IMG]
     
  3. oblivionnewtonjohn

    oblivionnewtonjohn Full Access Member

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    Now that you mention that, I seem to recall reading this previously. Thanks for the reply, I will check with the dealer.

    EDIT: paid over the phone and my wife will grab it on her way home

    Spence
     
    Last edited: Dec 7, 2018
  4. HoosierJeeper

    HoosierJeeper Gold Supporter/Admin Staff Member Administrator

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    My dealer wanted $92 for a cap. No shit. :D Bought a stant one locally for $5 then ordered a Mopar one. Make sure you get the same PSI as the original. 16PSI. Some will sell you an 18PSI one.
     
  5. oblivionnewtonjohn

    oblivionnewtonjohn Full Access Member

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    I got a 17 psi.... I even told her over the phone the needed value. I paid $25 including tax.
     
  6. LibertyTC

    LibertyTC Well-Known Member Staff Member Moderator

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    Why are they monkeying around with part #s..ha ha who's working there?
    [​IMG]
    On the photo from my still original cap: part # shows as 05278697AA-16psi & is available online.
    That dealership wanted HJ to.....:gr_grin:
    [​IMG]
     
  7. tjkj2002

    tjkj2002 Full Access Member

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    My '02 came with a 18psi cap from the factory,what they are supposed to be and why running a OE cap blows out aftermarket radiators so fast which are only rated for 16psi.