Heater control stuck on defrost - 2000 F250 Powerstroke - Diesel Forum - TheDieselStop.com
Ford Diesel Forum / Powerstroke Forum
Ford Diesel Forum / Powerstroke Forum
Go Back   Diesel Forum - TheDieselStop.com > 1999-2007 Ford Super Duties > 1999-2007 General Questions

1999-2007 General Questions General questions related to 1999-2007 Super Duty trucks. If it doesn't fit the other categories, post it here. Gas engine discussion that pertains to all models is allowed. Specific gas engine questions should use the Gas Engines forum.

TheDieselstop.com is the premier Diesel Truck Forum on the internet. Registered Users do not see the above ads.
Reply
 
LinkBack Thread Tools Display Modes
Old 01-29-2007, 12:25 PM   #1 (permalink)
Senior Member
 
Join Date: Dec 2003
Location: East Texas
Posts: 330
My Photos: (0)
Feedback Score: 0 reviews
Heater control stuck on defrost - 2000 F250 Powerstroke

My heater control is stuck on defrost on my 2000 F250 Powerstroke, or rather the control on the dash turns OK, but the results are that it only blows air on the windshield through the defrost port. I can't get it to change air output to floorboard or dash ports. Other controls such as temperature control and fan speed work OK. Any ideas what is wrong and how to fix it? Thanks in advance for any help.
tjc1989 is offline   Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Old 01-29-2007, 12:29 PM   #2 (permalink)
Senior Member
 
Join Date: Aug 2000
Location: Grayslake, IL USA
Posts: 7,246
My Photos: (0)
Feedback Score: 0 reviews
Re: Heater control stuck on defrost - 2000 F250 Powerstroke

That's usually a vacuum problem. Either the little pump on the passenger fender/firewall under the hood has gone bad, or a line has fallen off somewhere, or (in a lot of cases) there's a cracked line down near the ESOF hubs that is letting all the vacuum escape.

The default position of the vacuum-operated flaps is defrost.

Duncan
__________________
The 1997 F250HD Crewcab: Picture
The 2000 XLT Excursion <font color="red">(SOLD)</font>: Picture
The 2003 F250 Crewcab 6.0L: Web page
The 6.0L Bible: Web page
The 6.4L Bible: Web page
frobozz is offline   Reply With Quote Quick reply to this message
Old 01-29-2007, 01:09 PM   #3 (permalink)
Senior Member
 
Join Date: Dec 2003
Location: East Texas
Posts: 330
My Photos: (0)
Feedback Score: 0 reviews
Re: Heater control stuck on defrost - 2000 F250 Powerstroke

Thanks, that sounds like a good starting point. I'll go and check it out. I am assuming its electrically powered. Does it have its own fuse? Pardon my ignorance, but what is an ESOF hub?
tjc1989 is offline   Reply With Quote Quick reply to this message
Old 01-29-2007, 01:21 PM   #4 (permalink)
Senior Member
 
Join Date: Feb 2001
Location: south midwest
Posts: 449
My Photos: (0)
Feedback Score: 1 reviews
Re: Heater control stuck on defrost - 2000 F250 Powerstroke

Electronic Shift on the Fly- ESOF 4wd.
__________________
2013 250 Lariat CCLB, 6.7, 4WD, all but the roof, Amp Research Power Steps, BedRug, ARE cap, power tailgate lock.

2000 250SC,4WD,4R100,3.73 rear,loaded, Leer XL160
fxdwg is offline   Reply With Quote Quick reply to this message
Old 01-29-2007, 01:56 PM   #5 (permalink)
Senior Member
 
Join Date: Nov 2006
Location: Reno, NV
Posts: 104
My Photos: (0)
Feedback Score: 0 reviews
Re: Heater control stuck on defrost - 2000 F250 Powerstroke

Here read this thread:
http://forums.thedieselstop.com/ubbthrea...e=2#Post3165713
__________________
01 F350 Lariat 4x4, ECSB SRW, Magnaflow Tuner SS muffler delete exhaust, WW, boost fooler, Non-EBPV housing, DP Tuner F5 (40T, 80E w/ 80T shifting, 120R), AEM CAI, ZOODAD, AIH delete, Autometer Pyro/boost/trans. temp. gauges on A-pillar, leveling kit, 35x12.5 BFG ATs, 17x10 Incubus Recoils, 4.11 gears, chrome badges

04 ZX10R
9.959 @ 142 N/A 2006
9.895 @ 148 N2O 2005
Vid1
Vid2

05 BMW 325XI
Wifes car
SeriousasaStroke is offline   Reply With Quote Quick reply to this message
Old 01-30-2007, 04:02 PM   #6 (permalink)
Senior Member
 
Join Date: Dec 2003
Location: East Texas
Posts: 330
My Photos: (0)
Feedback Score: 0 reviews
Re: Heater control stuck on defrost - 2000 F250 Powerstroke

That was it. No vacuum. I checked the pump and not working, and no voltage to it. That left a fuse, which was the culprit. So replaced it and its working OK now. Thanks again. By the way, mine is a 2WD and thats why I wasn't familiar with the ESOF term. [img]/ubbthreads/images/graemlins/laugh.gif[/img]
tjc1989 is offline   Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Reply

  Diesel Forum - TheDieselStop.com > 1999-2007 Ford Super Duties > 1999-2007 General Questions

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Diesel Forum - TheDieselStop.com forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On



Wheel & Tire Center

Powered by vBadvanced CMPS v3.2.3

All times are GMT -5. The time now is 12:39 AM.



Powered by vBulletin® Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by vBSEO 3.6.0

vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.