Blown Heater Core

Discussion in 'Technical' started by Jmdelto, Feb 6, 2020.

  1. Jmdelto

    Jmdelto Member

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    Greetings All!

    I believe I have a blown heater core, read through a number of posts involving coolant leaking and being noticed in the passenger side floor (bleeding coolant). What are my options, bypass for now, replace heater core, burp the system, possible clogged heater core? Ultimately I don’t want to jeopardize my engines health, I’ll post a couple of pictures (didn’t get any pics of the coolant puddled) just wanted some advice from the group. All angles appreciated.

    Thanks!

    Jim

    upload_2020-2-6_20-42-7.jpeg

    upload_2020-2-6_20-47-42.jpeg
     
  2. 71gold

    71gold Frank Cooper Supporting Member

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    :Welcome:...:Handshake:
    is it antifreeze or water?
    if water, could be leaking cowl. antifreeze, heater core. you can loop the heater hose for a temp. fix.
     
  3. Jmdelto

    Jmdelto Member

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    It is antifreeze. What should I start with for trouble shooting? Would it leak it’s the core was clogged or do they typically leak if the core is blown?
     
  4. Krazy Comet

    Krazy Comet Tom Supporting Member

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    Leak is almost always due to corrosion or maybe a cracked solder joint. Rare instances someone poked a hole in it installing a tape deck or similar.

    If it's plugged, heat will be weak at best. Replace core and don't look back.
     
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  5. Jmdelto

    Jmdelto Member

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    Will do, thanks for the help!
     
  6. 71gold

    71gold Frank Cooper Supporting Member

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    have the new heater core pressure checked before installing...:yup:
     
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  7. stumanchu

    stumanchu Stuart

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    My heater box looked like this inside. Cleaning all the rusty dust and crud out, a little painting, and a new heater core almost brings back the new car smell.....well, maybe not.....but it did get rid of a little old car smell.
     

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