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no heat

arburton300

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December 26, 2008
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i have a 2001 explorer sport and when i turn the climate control knob from a/c to heat i have not change (steady cold a/c). i do hear a clicking coming from the compressor under the hood every 15 or so seconds in the hot or cold position. i have replaced my thermostat and checked heater hoses to verify circulation. i have read many post talking about blend door and the motor so i tried the quick fix where you cut into plenum and manually move the blend door. when looking into the cutout i noticed that the door was opening and closing when i changed the climate control from hot to cold and still no heat. i moved the blend door by hand and no change just cold air. i disconnected my heater hoses and blew into the intake line and fluid came out of return line (not sure if that means anything). any help would be appreciated.:banghead:
 


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bror01

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January 9, 2009
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City, State
Quebec
Year, Model & Trim Level
2002 Sport Trac
Hi, I have a 2002 Sport Trac and I have the same problem. I had a mecanic look at it and he cut open the box to see if the doors were opening and closing, wasn't that, he blew air in the heater core and it is not blocked. He tried with the valve opened and closed and it wasn't that either. We have no clue what the problem could be.
 




96eb96

Explorer Addict
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October 20, 2004
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City, State
Albany, NY
Year, Model & Trim Level
96 EB V6 OHV 4WD
i have a 2001 explorer sport and when i turn the climate control knob from a/c to heat i have not change (steady cold a/c). i do hear a clicking coming from the compressor under the hood every 15 or so seconds in the hot or cold position. i have replaced my thermostat and checked heater hoses to verify circulation. i have read many post talking about blend door and the motor so i tried the quick fix where you cut into plenum and manually move the blend door. when looking into the cutout i noticed that the door was opening and closing when i changed the climate control from hot to cold and still no heat. i moved the blend door by hand and no change just cold air. i disconnected my heater hoses and blew into the intake line and fluid came out of return line (not sure if that means anything). any help would be appreciated.:banghead:

If your blend door moves I wonder if the heater control valve is bad, you can't miss it..it has 4 hoses going in and out.
 








bror01

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January 9, 2009
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City, State
Quebec
Year, Model & Trim Level
2002 Sport Trac
Hi I was wondering if you checked the valve and if it worked.
Thanks!
 




arburton300

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December 26, 2008
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bror01, i apologize for not responding right away but i had computer issues along with my car troubles. i did change the heater control valve and now i have heat. thank you for the assistance.
 




j-dogg

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November 23, 2009
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City, State
Western New York
Year, Model & Trim Level
2001 Explorer Sport trac
I need help, any pics?

bror01, i apologize for not responding right away but i had computer issues along with my car troubles. i did change the heater control valve and now i have heat. thank you for the assistance.

Ok I have the same exact issue, unfortunately I dont know what the valve is or what it looks like, anyone have a picture?
 




rd_turbo

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Joined
February 17, 2005
Messages
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City, State
Mississauga, ON
Year, Model & Trim Level
'98 B3000 4X4
Ok I have the same exact issue, unfortunately I dont know what the valve is or what it looks like, anyone have a picture?

Depending on the year of your vehicle, it may look like this
 

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j-dogg

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November 23, 2009
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City, State
Western New York
Year, Model & Trim Level
2001 Explorer Sport trac
Thanks for the photo that helps
 




rd_turbo

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Joined
February 17, 2005
Messages
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City, State
Mississauga, ON
Year, Model & Trim Level
'98 B3000 4X4
I checked my problem out yesterday and it's the dreaded blend door....no heat....I'll do the "5 minute fix" later this morning
 




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