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  1. R

    Trying to flush yellow powdery stuff out of cooling system

    i gotcha. I appreciate it. Yeah i hope the heater core is fine. The water coming out now is mostly clear. Should i reverse flush it like someone mentioned or just put AF in and roll with it and drain and fill every now and then?
  2. R

    Trying to flush yellow powdery stuff out of cooling system

    What do u mean? Sry im a newbie at this stuff
  3. R

    Trying to flush yellow powdery stuff out of cooling system

    but if i drain the block most will be out right?
  4. R

    Trying to flush yellow powdery stuff out of cooling system

    Sorta. This was what was in the hose when i pulled it off And there were little bits of soft stuff in it
  5. R

    Trying to flush yellow powdery stuff out of cooling system

    Heres a few photos of when i started flushing and photo of jug is how clear it looks now. These r the only ones i had saved
  6. R

    Trying to flush yellow powdery stuff out of cooling system

    I was going to add vinegar but was told its too acidic or something and isnt good to use?
  7. R

    Trying to flush yellow powdery stuff out of cooling system

    My 07 Acura TL had some yellow chalky looking residue in radiator hoses. was told likely stop leak additive from previous owner so ive been flushing system with LOTS of distilled water and it started out mostly green then slowly got faint yellow looking now its mostly cleared up but when i pour...
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