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Confirming leaking heater core

Discussion in 'A/C & Heater systems - HVAC' started by Ilikemice, June 27, 2017.

^^Searches ExplorerForum.com^^

  1. Ilikemice

    Ilikemice Active Member

    July 6, 2009
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    City, State:
    Midlands, UK
    Year, Model & Trim Level:
    '99 XLT
    Hi all, i did an 8hr drive and the cabin started to smell like coolant. It's worse when the fans/heater are on. No leaks under the dash, but there's an open pipe on the passenger side sticking out of the firewall that now dumps a bit of liquid onto the exhaust when stopped. I'm ready to pull the trigger on a new heater core, assuming my diagnosis is correct :)

    1999 4.0l SOHC, btw

    P.S. what is that little pipe for? It sticks out under the passenger side head about an inch
  2. Support EF

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  3. Number4

    Number4 "I'm counting to 3, then I'm getting your dad." Elite Explorer

    March 16, 2013
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    City, State:
    Woodstock, GA
    Year, Model & Trim Level:
    04 Ford Explorer 4.6l
    Smell of antifreeze is a good indicator. Also, if you run the defrost, you'll probably get an oily film on the window.

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