how do you burp a 03 expeditions coolant

Asked by Jan 09, 2015 at 09:34 AM about the 2003 Ford Expedition Eddie Bauer 4WD

Question type: Maintenance & Repair

cant get heat to blow front or rear, changed therm , fan only blows on first and forth
setting when turn temp control; in front feels like it does nothing but you can barely hear a
change in pitch of the air flow no air at all in floor ?

1 Answer

835

You may have multiple issues, Fan speed is controlled by switch, this may be faulty, or the blower motor may be suspect. test switch first. (less expensive). There should be 2 small (1 inch) hoses going to and from the firewall under the hood, both should be hot when engine is warmed up, and heater control is set to hot. If not then no coolant is circulating in heater core(s).

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