Water on top of resivor

Discussion in '6.9L IH & 7.3L IDI Diesels' started by boogieman13ie, Jan 12, 2018.

  1. boogieman13ie

    boogieman13ie Registered User

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    Waz up guys i have a 93 f250 7.3 idi i recently noticed water on top of my radiator resivor like its been over flowing any ideas and its filled up to the right amont

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  2. nostrokes

    nostrokes Full Access Member

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    Water or antifreeze????? First step is to get it hot, pop the hood and look for an obvious leak. Can't find one then get a pressure tester and slightly, very slightly over pressure it looking again for an obvious leak.
     
  3. 79jasper

    79jasper Chickenhawk

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    Look at the neck around the cap. (With the brass radiator, I've seen the solder fail there)


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  4. IDIBRONCO

    IDIBRONCO IDIBRONCO

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    Is your radiator cap in good shape? It could be leaking and letting coolant sit on top of the radiator.
     
  5. DrCharles

    DrCharles Full Access Member

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    OP, are you referring to the coolant reservoir (the plastic tank on the inner fender), or the top tank of your radiator?
     
  6. boogieman13ie

    boogieman13ie Registered User

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    The plastic resivor and theirs no leaks and i just bought the cap cause i thought that was it its a 13lbs cap is that ok

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  7. lotzagoodstuff

    lotzagoodstuff Supporting Member Supporting Member

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    If you bought a non-Motorcraft radiator cap, you are most likely creating more problems for yourself. Search radiator caps and you'll see that these engines are very specific on what works well on them, and aftermarket caps are notorious for causing cooling issues.

    Good luck
     
  8. Tristan

    Tristan Full Access Member

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    Also make sure that after the truck is warmed up and running that coolant isn't bubbling up in the reservoir.


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