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Car Forum / Ford / Ford Explorer / November 2007

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BRR!! HEAT PROBLEMS!!!

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Tori - 06 Nov 2007 21:06 GMT
Hey all.  Ok another problem with my 1997 explorer. yes, I am a
typical 26 year old woman, I thought it was a 1999 when I wrote in
with earlier with problems.  LOL.  Anyway, now my heat has decided to
take a crap.  I had a friend of mine who is a part time mechanic that
I trust look at it.  The heater core is not plugged all the hoses are
hot.  The blower works fine.  And the little door/flapper things that
need to move when changing from feet heat or defrost or A/C all move
and all those little rod things that turn when you move the feet heat
or to defrost turn also.  So I need help.  What the heck else can it
be?  Thanks.
C. E. White - 06 Nov 2007 21:12 GMT
> Hey all.  Ok another problem with my 1997 explorer. yes, I am a
> typical 26 year old woman, I thought it was a 1999 when I wrote in
[quoted text clipped - 6 lines]
> or to defrost turn also.  So I need help.  What the heck else can it
> be?  Thanks.

Are you sure the temperature blend door is moving properly?

Ed
Tori - 06 Nov 2007 21:14 GMT
> > Hey all.  Ok another problem with my 1997 explorer. yes, I am a
> > typical 26 year old woman, I thought it was a 1999 when I wrote in
[quoted text clipped - 10 lines]
>
> Ed

I have no idea what that means.  You mean my knob?
C. E. White - 06 Nov 2007 22:43 GMT
>> > Hey all.  Ok another problem with my 1997 explorer. yes, I am a
>> > typical 26 year old woman, I thought it was a 1999 when I wrote in
[quoted text clipped - 12 lines]
>
> I have no idea what that means.  You mean my knob?

No, not the knob, the actual blend door inside the heater case. This is
vacuum operated in response the position of your temperature knob. The door
(flpa) shifts position to hcange how the air is routed through the heater
core and the A/C evaporater. The way the air is routed through the componets
determines the temperature of the air coming out of the vents. There is a
common Explorer problem where the interal door (flap) fails. Even though the
control works, and the acutator works, the door doesn't move. If the door
doesn't move, you can't adjust the temperature.

There is a good explaination at
http://autorepair.about.com/library/faqs/bl958g.htm. This guy claims he has
a simple fix - http://www.blenddoorfix.netfirms.com/. I have not tried this.

Also see:

http://www.alldata.com/techtips/Ford/20030323c.html
http://www.explorerforum.com/forums/showthread.php?s=db553762b53d5e46caeac2d726a
77a4e&t=183742

http://mightyautoparts.com/pdf/articles/otl1200.pdf

Regards,

Ed White
newman - 06 Nov 2007 23:01 GMT
Thanks Ed.

Although I haven't had this problem (yet?), it's good info.

2000 Explorer Ltd, V8

> On Nov 6, 3:12 pm, "C. E. White" <cewhi...@mindspring.com> wrote:
>> "Tori" <tori.andr...@gmail.com> wrote in message
[quoted text clipped - 17 lines]
>
> I have no idea what that means.  You mean my knob?

No, not the knob, the actual blend door inside the heater case. This is
vacuum operated in response the position of your temperature knob. The door
(flpa) shifts position to hcange how the air is routed through the heater
core and the A/C evaporater. The way the air is routed through the componets
determines the temperature of the air coming out of the vents. There is a
common Explorer problem where the interal door (flap) fails. Even though the
control works, and the acutator works, the door doesn't move. If the door
doesn't move, you can't adjust the temperature.

There is a good explaination at
http://autorepair.about.com/library/faqs/bl958g.htm. This guy claims he has
a simple fix - http://www.blenddoorfix.netfirms.com/. I have not tried this.

Also see:

http://www.alldata.com/techtips/Ford/20030323c.html
http://www.explorerforum.com/forums/showthread.php?s=db553762b53d5e46caeac2d726a
77a4e&t=183742

http://mightyautoparts.com/pdf/articles/otl1200.pdf

Regards,

Ed White
Happy Traveler - 07 Nov 2007 01:14 GMT
You shouldn't have it. To the best of my knowledge, there was an upgrade to
those blend doors in the middle of 1998.

> Thanks Ed.
>
> Although I haven't had this problem (yet?), it's good info.
>
> 2000 Explorer Ltd, V8
Tori - 09 Nov 2007 02:33 GMT
> Thanks Ed.
>
[quoted text clipped - 49 lines]
>
> - Show quoted text -

Thank you very much!!  Very helpful
Clark - 07 Nov 2007 22:04 GMT
Tori <tori.andrews@gmail.com> wrote in news:1194383219.555864.9910
@e34g2000pro.googlegroups.com:

> Hey all.  Ok another problem with my 1997 explorer. yes, I am a
> typical 26 year old woman, I thought it was a 1999 when I wrote in
[quoted text clipped - 6 lines]
> or to defrost turn also.  So I need help.  What the heck else can it
> be?  Thanks.

Along with Ed's line of investigation, does the engine warm up properly? That
is to say does the needle move up near the middle of the temperature scale
after 5 minutes of driving?

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there should be a "sig" here

Tori - 09 Nov 2007 02:33 GMT
> Tori <tori.andr...@gmail.com> wrote in news:1194383219.555864.9910
> @e34g2000pro.googlegroups.com:
[quoted text clipped - 17 lines]
> ---
> there should be a "sig" here

yep it does.  and it started working on it's own again.  But the when
the knob is turned on cold it is hot and when on hot, cooler.
Clark - 09 Nov 2007 05:04 GMT
>> Tori <tori.andr...@gmail.com> wrote in news:1194383219.555864.9910
>> @e34g2000pro.googlegroups.com:
[quoted text clipped - 20 lines]
> yep it does.  and it started working on it's own again.  But the when
> the knob is turned on cold it is hot and when on hot, cooler.

Well in that case just run it backwards. :-)

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---
there should be a "sig" here


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