Notices
1999 - 2016 Super Duty 1999 to 2016 Ford F250, F350, F450 and F550 Super Duty with diesel V8 and gas V8 and V10 engines
Sponsored by:
Sponsored by: Real Truck

A/C / Heater problems

Thread Tools
 
Search this Thread
 
Old Jan 16, 2006 | 08:25 PM
  #1  
Ammon's Avatar
Ammon
Thread Starter
|
Freshman User
Joined: Nov 2003
Posts: 37
Likes: 0
A/C / Heater problems

This morning I turned on my heater (defroster) and for some reason, no matter where I turn the ****, I cant get it to go to the floor heater or dashboard. It's stuck on the defroster?? It turns off, but thats about the only option that works. Any ideas? Is there a motor or switch that needs replacing?
 
Reply
Old Jan 16, 2006 | 10:49 PM
  #2  
Jason8705's Avatar
Jason8705
Junior User
Joined: Sep 2004
Posts: 73
Likes: 0
There are actuators that move the doors that direct the airflow located under the dash behind the ashtray. These are run be vacuum lines...if one got d/c or broke that would cause the problem...that's where i would look first
 
Reply
Old Jan 17, 2006 | 02:35 AM
  #3  
CowboyBilly9Mile's Avatar
CowboyBilly9Mile
Post Fiend
Joined: Feb 2003
Posts: 6,940
Likes: 2
From: Eastern WA
Defrost is the default position when there is no vaccum applied. Thus, you most likely need to determine why the HVAC system lost vaccum.
 
Reply
Old Jan 17, 2006 | 05:49 AM
  #4  
Beast12's Avatar
Beast12
Post Fiend
Joined: Mar 2003
Posts: 14,413
Likes: 3
From: Sarnia, Ontario, CANADA!
Originally Posted by Ammon
This morning I turned on my heater (defroster) and for some reason, no matter where I turn the ****, I cant get it to go to the floor heater or dashboard. It's stuck on the defroster?? It turns off, but thats about the only option that works. Any ideas? Is there a motor or switch that needs replacing?
Is this for your 2000 F-350? If so then I will move this post to the Super Duty...but I need to know.

-Matt
 
Reply
Old Jan 17, 2006 | 09:20 AM
  #5  
Ammon's Avatar
Ammon
Thread Starter
|
Freshman User
Joined: Nov 2003
Posts: 37
Likes: 0
Yes, this is for my 2000 F-350. Is this something I need to take to a dealership? Or something that I may be able to check out on my own?
 
Reply
Old Jan 17, 2006 | 12:16 PM
  #6  
Beast12's Avatar
Beast12
Post Fiend
Joined: Mar 2003
Posts: 14,413
Likes: 3
From: Sarnia, Ontario, CANADA!
Thread moved to Super Duty forum.

-Matt
 
Reply
Old Jan 17, 2006 | 12:22 PM
  #7  
Ammon's Avatar
Ammon
Thread Starter
|
Freshman User
Joined: Nov 2003
Posts: 37
Likes: 0
So I was searching some other posts, and noticed there was a connection between the 4x4 hub and the air. My seal on on of my hubs is bad. Would this be the problem? When I replace the hub with manual hubs, what is the best way to plug the vacuum?
 
Reply
Old Jan 18, 2006 | 01:49 AM
  #8  
V10man's Avatar
V10man
Logistics Pro
25 Year Member
Photogenic
Photoriffic
Joined: Feb 2000
Posts: 3,954
Likes: 47
From: Mesa
It could be from the hub but check under/behind the glove box for a vacuum fitting that can come appart.
 
Reply
FTE Stories

Ford Trucks for Ford Truck Enthusiasts

story-0

Ford's 2001 Explorer Sportsman Concept Looks For a New Home

 Verdad Gallardo
story-1

10 Best Ford Truck Engines We Miss the Most!

 Joe Kucinski
story-2

2026 Shelby F-150 Off-Road: Better Than a Raptor R?

 Brett Foote
story-3

2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!

 Michael S. Palmer
story-4

10 Most Surprising 2026 Ford Truck Features!

 Joe Kucinski
story-5

Top 10 Ford Trucks Coming to Mecum Indy 2026

 Brett Foote
story-6

5 Best / 5 Worst Ford Truck Wheels of All Time

 Joe Kucinski
story-7

Ford Super Duty: 5 Things Owners LOVE, 5 Things They LOATHE!

 Joe Kucinski
story-8

Every 2026 Ford Truck Engine RANKED from WORST to FIRST!

 Michael S. Palmer
story-9

The Best F-150 Deal of Every Trim Level (XL through Raptor)

 Joe Kucinski
Old Jan 28, 2006 | 12:17 PM
  #9  
Ammon's Avatar
Ammon
Thread Starter
|
Freshman User
Joined: Nov 2003
Posts: 37
Likes: 0
That's exactly what it was! The plug under the glove box must have been disconnected by someone sitting in the passenger seat. Thanks!
 
Reply
Old Jan 28, 2006 | 03:00 PM
  #10  
JMACC's Avatar
JMACC
Senior User
Joined: Aug 2004
Posts: 139
Likes: 0
From: Cape Cod MA
I am having the exact same problem but all the vacum lines are ok I have checked and rechecked the lines and everything seems to be fine. I have checked fuses and they are all ok.I think it happened when I used the ESOF switch for a moment yesterday to get up a steep gravel incline? then turned it off,but when I got home I switched again to 4x4 and 4x4 low with the switch and the hubs engaged? I am suspecting my dash switch went south? what would others opinions be?
 
Reply




All times are GMT -5. The time now is 03:37 AM.

story-0
Ford's 2001 Explorer Sportsman Concept Looks For a New Home

Slideshow: Ford's bizarre fishing-themed Explorer concept has resurfaced after spending decades largely forgotten.

By Verdad Gallardo | 2026-05-12 18:07:46


VIEW MORE
story-1
10 Best Ford Truck Engines We Miss the Most!

Slideshow: The 10 best Ford truck engines we miss the most.

By Joe Kucinski | 2026-05-12 13:09:47


VIEW MORE
story-2
2026 Shelby F-150 Off-Road: Better Than a Raptor R?

Slideshow: first look at the 810 hp 2026 Shelby F-150 Off-Road!

By Brett Foote | 2026-05-12 12:50:07


VIEW MORE
story-3
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!

Slideshow: Everything You Need to Know about the 2027 Super Duty Carhartt Package!

By Michael S. Palmer | 2026-05-07 17:51:06


VIEW MORE
story-4
10 Most Surprising 2026 Ford Truck Features!

Slideshow: 10 most surprising Ford truck options/features in 2026.

By Joe Kucinski | 2026-05-05 11:17:22


VIEW MORE
story-5
Top 10 Ford Trucks Coming to Mecum Indy 2026

Slideshow: Here are the top 10 Fords coming to Mecum Indy 2026.

By Brett Foote | 2026-05-04 13:49:49


VIEW MORE
story-6
5 Best / 5 Worst Ford Truck Wheels of All Time

Slideshow: The 5 best and 5 worst Ford truck wheels of all time

By Joe Kucinski | 2026-04-29 16:49:01


VIEW MORE
story-7
Ford Super Duty: 5 Things Owners LOVE, 5 Things They LOATHE!

Slideshow: Ranking the 5 things owners love about their Super Duty and 5 things they don't

By Joe Kucinski | 2026-04-29 16:36:49


VIEW MORE
story-8
Every 2026 Ford Truck Engine RANKED from WORST to FIRST!

Slideshow: Ranking all 12 Ford truck engines available in 2026.

By Michael S. Palmer | 2026-04-22 13:32:20


VIEW MORE
story-9
The Best F-150 Deal of Every Trim Level (XL through Raptor)

Slideshow: The best Ford F-150 deal for every trim level (XL through Raptor)

By Joe Kucinski | 2026-04-21 15:59:01


VIEW MORE