Go Back   Ford Truck Enthusiasts Forums > Super Duty/Heavy Duty > Super Duty & Heavy Duty
Sign in using an external account
Register Forgot Password?


Super Duty & Heavy Duty 1999 to current Ford F250, F350, F450 and F550 Super Duty with diesel V8 and gas V8 and V10 engines SPONSORED BY:

Welcome to Ford-Trucks Forums!
Welcome to Ford-Trucks.com.

You are currently viewing our forums as a guest, which gives you limited access to view most discussions and access our other features. By joining our community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is fast, simple and absolutely free so please, join the Ford-Trucks Forums community today!





 
Reply
 
 
 
 
LinkBack Thread Tools Search this Thread
  #1  
Old 05-11-2010, 03:54 PM
Pro DIY Pro DIY is offline
Senior User
 
Join Date: Dec 2009
Posts: 143
Pro DIY is starting off with a positive reputation.
Vacuum issues, defroster is stuck on

So I know that I have a vacuum issues because no matter what I have the vent selecter set to air will only come out of the defroster. I also am pretty sure I know where the vacuum leak is. The rubber vacuum lines for the locking hubs are old and cracked and are actually not connected to the front axle. My question is if I cap off the auto locking hub lines will that stop the vacuum leak enough so that I can once again use the vent selector? Or is there something else that I can do. Let me know what you think.
Reply With Quote
  #2  
Old 05-11-2010, 05:59 PM
npccpartsman's Avatar
npccpartsman npccpartsman is offline
Post Fiend
 
Join Date: Dec 2003
Location: Ft. Smith, Ark.
Posts: 13,521
npccpartsman has a spectacular reputation.npccpartsman has a spectacular reputation.npccpartsman has a spectacular reputation.npccpartsman has a spectacular reputation.npccpartsman has a spectacular reputation.npccpartsman has a spectacular reputation.npccpartsman has a spectacular reputation.npccpartsman has a spectacular reputation.npccpartsman has a spectacular reputation.npccpartsman has a spectacular reputation.npccpartsman has a spectacular reputation.
Absolutely. Anything to stop the vacuum leak should allow the A/C accuator motors to work again
__________________
FederalOwnershipRespectfullyDeclined

R.I.P. SteveBricks. A friend you always were and ever shall be.

Tim
Reply With Quote
  #3  
Old 05-16-2010, 04:00 PM
2kdually 2kdually is offline
New User
 
Join Date: Jan 2007
Posts: 22
2kdually is starting off with a positive reputation.
I'm not sure what year you have. My 2000 had the same problem. The vacuum pump and res. on the pass. side engine compartment builds up when you turn the key. My front hubs didn't work any longer and the vacuum would never build up. The defrost is the default position and the heater/ a/c needs the vacuum to actuate. I just plugged the ports that fed the hubs, and all is well.


2000 F-350 7.3l Crew cab dually
Reply With Quote
  #4  
Old 05-17-2010, 10:14 AM
Pro DIY Pro DIY is offline
Senior User
 
Join Date: Dec 2009
Posts: 143
Pro DIY is starting off with a positive reputation.
Quote:
Originally Posted by 2kdually View Post
I'm not sure what year you have. My 2000 had the same problem. The vacuum pump and res. on the pass. side engine compartment builds up when you turn the key. My front hubs didn't work any longer and the vacuum would never build up. The defrost is the default position and the heater/ a/c needs the vacuum to actuate. I just plugged the ports that fed the hubs, and all is well.


2000 F-350 7.3l Crew cab dually
Mines a '99. Where did you plug them? At the point where it enters the wheel well or did you do it at the pump/res. And what did you use to plug them? Thanks for your time.
Reply With Quote
  #5  
Old 05-17-2010, 03:08 PM
2kdually 2kdually is offline
New User
 
Join Date: Jan 2007
Posts: 22
2kdually is starting off with a positive reputation.
I plugged them at the pump/res. I'm not in front of the truck, and sorry, I don't recall what I used. But any "plug" that will stop the leak will work. I'm sure that most parts houses will have rubber fittings/sleeves that slip over a vacuum line connector that will work.
If you still need help tomorrow, I can revisit and see what I used.
Reply With Quote
  #6  
Old 06-18-2010, 12:13 PM
6erwebb 6erwebb is offline
New User
 
Join Date: Jun 2010
Location: Middle Tenn.
Posts: 9
6erwebb is starting off with a positive reputation.
Hope im not stepping on any toes reviving this thread but Im having this problem as well however my truck is a two wheel drive. The hoses dont look bad, also upon initial start up sometimes the vents blow the ac but after while itll switch to defrost.

Any advice???
Reply With Quote
  #7  
Old 06-18-2010, 01:02 PM
scottzj's Avatar
scottzj scottzj is offline
Hangin 10 bra
 
Join Date: Feb 2010
Location: Bartlett TN
Posts: 11,216
scottzj has much to be proud ofscottzj has much to be proud ofscottzj has much to be proud ofscottzj has much to be proud ofscottzj has much to be proud ofscottzj has much to be proud ofscottzj has much to be proud ofscottzj has much to be proud ofscottzj has much to be proud ofscottzj has much to be proud of
Sounds like a vacuum issue. The electric vacuum pump is known to go out and that could cause your problem. Below was posted awhile back from a fellow FTE, that might help you understand it.
Attached Images
 
__________________
Scott TN Chapter member and Official #21 Slackmaster!
2004 F250 Crew Cab 6.0L Diesel King Ranch FX4. Moonroof, heated seats, slider back window, 2005-07 Modified grill, headlights, blacked out windows, tinted cab lights, tinted mirror blinkers, wig wag, EGR Delete, cb with exterior speaker mount, 7" dvd/GPS radio.
Reply With Quote
  #8  
Old 06-18-2010, 03:24 PM
6erwebb 6erwebb is offline
New User
 
Join Date: Jun 2010
Location: Middle Tenn.
Posts: 9
6erwebb is starting off with a positive reputation.
is there any way to test the pump? I have a friend with a hand pump but wont be home til tomorrow.
Reply With Quote
  #9  
Old 06-18-2010, 07:33 PM
sandmanf250 sandmanf250 is offline
Posting Guru
 
Join Date: Mar 2003
Posts: 1,246
sandmanf250 is gaining momentum as a positive member of FTE.
there is a tsb about a blend box sticking problem .(maybe)
Reply With Quote
Old 06-18-2010, 07:33 PM
 
 
 
Reply

Go Back   Ford Truck Enthusiasts Forums > Super Duty/Heavy Duty > Super Duty & Heavy Duty

Tags
99, defrost, defroster, duty, excursion, expedition, f250, ford, heater, issues, problems, stuck, super, superduty, vacuum

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not 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 On
Trackbacks are On
Pingbacks are On
Refbacks are On

Forum Jump



All times are GMT -5. The time now is 05:35 PM.


Powered by vBulletin® Version 3.8.7 AC1
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Advertising - Terms of Use - Privacy Statement - Jobs
This forum is owned and operated by Internet Brands, Inc., a Delaware corporation. It is not authorized or endorsed by the Ford Motor Company and is not affiliated with the Ford Motor Company or its related companies in any way. FordŽ is a registered trademark of the Ford Motor Company.

vbulletin Admin Backup