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    kathyhudson's Avatar
    kathyhudson Posts: 2, Reputation: 1
    New Member
    		  
    #1

    Feb 1, 2011, 03:59 PM
    2006 6.0Liter ford diesel.
    The truck is blowing cold air. The thermostat is fine. It has a new water pump and heater core. The a/c is disconnected. The fan blows cold when it is on low but once you turn the fan up it blows extremely cold air. Any thoughts.
    TxGreaseMonkey's Avatar
    TxGreaseMonkey Posts: 16,761, Reputation: 5597
    Uber Member
    		  
    #2

    Feb 1, 2011, 06:05 PM

    This link may help:

    https://www.askmehelpdesk.com/cars-t...ml#post2651405

    Focus on the heater control valve.
    kathyhudson's Avatar
    kathyhudson Posts: 2, Reputation: 1
    New Member
    		  
    #3

    Feb 1, 2011, 07:47 PM
    That has been taken out. We think it might be an air lock or one of the doors for the rad isn't shutting.
    TxGreaseMonkey's Avatar
    TxGreaseMonkey Posts: 16,761, Reputation: 5597
    Uber Member
    		  
    #4

    Feb 1, 2011, 08:04 PM

    Look into how to run the diagnostics on your Electronic Air Temperature Control (EATC) System. Here's where I'm coming from:

    https://www.askmehelpdesk.com/cars-t...ml#post1999642
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