Question about 1998 Ford Windstar

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Coolant fill procedure

I replaced the radiator and flushed the cooling system in a Ford Windstar and now I can't get the rear heater core to fill properly. I have the hoses pinched (Bypass and front core) to allow the coolant only to flow through the rear core, But this does not help. Please advise

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  • Anonymous Mar 21, 2014

    Flow direction of coolant trough hoses

  • Anonymous Mar 24, 2014

    hearter hoses have been bypassed and not sure of proper connections for heatercore

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  • Ford Master
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You may have air trapped in the system or rust plugging up the rear heater core. core, if it is just an air problem do this: Fill the radiator and the coolant recovery tank as full as possible, then raise the front of van as high as you can with a floor jack, run the engine until it is at normal operating temperature, let it cool down, running water over the radiator speeds this up, this should purge the air out of te system and cure your issue with the rear heater. Make sure you have a good radiator cap if it is the original one replace it. If the system still has no flow to the rear pull out the rear heater core and flush it out or replace it.

Posted on Sep 10, 2008

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Posted on Jan 02, 2017

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