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Heater blowing cold air


cduggan67

New Member
Joined
February 17, 2015
Messages
2
Reaction score
0
Year, Model & Trim Level
2001 ford explorer
Hello:
I have a 2001 Ford Explorer 4.0 and one minute the heat was blasting the next thing it was blowing cold air. I've changed the thermostat, water pump, flushed the entire cooling system and it's still blowing cold.
Any advice on what I can try next or what you think the problem is?
It's -4 degrees here....any help would be appreciated.
Thanks.
 




Bobmbx

Active Member
Joined
May 6, 2013
Messages
950
Reaction score
8
City, State
King George, VA
Year, Model & Trim Level
2016 Explorer Platinum
Hello:
I have a 2001 Ford Explorer 4.0 and one minute the heat was blasting the next thing it was blowing cold air. I've changed the thermostat, water pump, flushed the entire cooling system and it's still blowing cold.
Any advice on what I can try next or what you think the problem is?
It's -4 degrees here....any help would be appreciated.
Thanks.
Check your heater control valve for proper operation. It is normally located on the heater core supply hose. It is vacuum driven and shuts off the flow of hot water when the AC system is calling for cold air.

It will look something like this. Your exact location and design may vary. But it will be on the heater supply hose.
 




cduggan67

New Member
Joined
February 17, 2015
Messages
2
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0
Year, Model & Trim Level
2001 ford explorer
Thank you!!

That was the problem! Thank you so much for your help!
 




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