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heater core

  1. Help to Bypass Rear Heater Core Lines

    99-03 Ford Excursion Forum
    I have an 2002 7.3 that is leaking at the Heater Core Lines from underneath the frame. I want to bypass the Rear Heater Core at the firewall but cannot find a diagram to be certain. I know that I need to disconnect the line(s) to the back and have found the supply line at the firewall but cannot...
  2. Heater core replacement

    6.4L Problems Forum
    Anyone have any manuals on replacing the heater core for a 2008 F350? I haven't had any luck finding anything online. Just a little info, noticed ALOT of coolant dripping from passenger side and having to constantly refill degas bottle. Just recently noticed fumes seeping through passenger side...
  3. GEM issues, No 4wd, Need Help please

    99-03 7.3L Powerstroke Problems
    Just recently had my heater core go out of my 4wd 2002 F350 PSD. Equipped with Auto tranny, ESOF and electric everything Lariat package. When the heater core went, it smoked my GEM module, made my 4x4 and 4lo lights come on in the instrument panel, also made my backup alarm "off" light come...
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