2003 Ford F350 Super Duty DRW SuperCab Logo
Donna Krokos
Donna Krokos Posted on Nov 20, 2009
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2003 FORD F-350 HAS HEAT THEN NO HEAT HAVE CHANGED WATER PUMP, THERO, HEATER CORE, RAD CHECK ALL HOSES?????

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  • Donna Krokos
    Donna Krokos Nov 20, 2009

    THANKS WILL TRY.... IT IS A 7.3 DIESEL EVERYONE SAYS IT IS THE HEAD GASKET, BUT DOES NOT OVERHEAT?

  • Donna Krokos
    Donna Krokos Nov 20, 2009

    WHERE IS THE HEATER CONTROL VALVE LOCATED?

  • Donna Krokos
    Donna Krokos Nov 20, 2009

    YES IT DOES IT WORKS REAL GOOD THEN IT WILL QUIT.

  • Donna Krokos
    Donna Krokos Nov 20, 2009

    IS THERE ANY WAY TO CHECK THE HEATER VALVE BEFORE REPLACING IT....

  • Donna Krokos
    Donna Krokos Nov 20, 2009

    THANK YOU WILL LET YOU KNOW

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1 Answer

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  • Posted on Nov 20, 2009
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If you are sure all the things you fixed are working good then I would say its the heater control valve around $30 and looks like this hope this helps

2003 FORD F-350 HAS HEAT THEN NO HEAT HAVE CHANGED - 6ac94d7.jpg

  • Anonymous Nov 20, 2009

    the heater control valve is under the hood in the heater hose going to your heater core inline valve close tho the fire wall....Head gasket does it use anti freeze alot if so could be the head ...does your heater work for a while then goes cold that could be a sign of a blown head gasket........good luck let me know if i can help

  • Anonymous Nov 20, 2009

    Before changing the valve I would have your engine pressure tested thats where they hook up to the radiator and aply air pressure into the coolant system and if there is a leak it will show by anti freeze spraying out and that will let you know if its the head gasket...and testing the valve im not sure how to do that sorry ..

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