Bad 'Low Vacuum Indicator Switch'? - Ford Powerstroke Diesel Forum
Powerstroke.org is the premier Diesel Truck Forum on the internet. Registered Users do not see the above ads.
Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 10-14-2007, 04:18 PM
Powerstroke.org Fanatic
 

Join Date: Sep 2007
Posts: 120
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Bad 'Low Vacuum Indicator Switch'?

While diagnosing a problem with my brakes (brake light) I unplugged the Low Vacuum Indicator Switch to confirm that I had a problem with the vacuum system and not the hydraulics. I had a busted brake line and vacuum pump problem-both are fixed now. However, when I plugged it back in, and before replacing the vacuum pump, I noticed that the brake light was not coming on (ABS light was still on). With the new vacuum pump, i'm pulling 23 in.hg no problem. To see if something was wrong with the vacuum switch, I pulled one of the vacuum caps off and turned the engine on. Brake light did not come on. I turned it off, sprayed both end of the connection for the vacuum switch with electric parts cleaner and reconnected. Tried again with no vacuum cap and the brake light does not come on. When I engage the parking brake, the brake light does come on. I'm guessing that there is something wrong with vacuum switch, that it needs to be replaced, and that it's causing my ABS light to come on. FYI, the ABS code is 12 flashes. Anybody agree or disagree?
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2  
Old 10-19-2007, 10:54 AM
Powerstroke.org Fanatic
 

Join Date: Sep 2007
Posts: 120
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Just an update for all of you who may care. The new low vacuum indicator switch didn't help with my ABS light problem, but it does cause the brake warning light to come on when no vacuum is present (i pulled a vacuum hose off to confirm it working).

ABS light is coming on intermittently now. The brake warning light still does not light up when starting the engine. ABS code is 12 flashes. I'm thinking there must be a short somewhere. Is it possible to get a wiring harness for just the ABS components?
Reply With Quote Quick reply to this message
  #3  
Old 02-16-2012, 04:46 PM
Powerstroke.org Rookie
 

Join Date: Feb 2012
Posts: 4
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Was that switch available aftermarket?
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Ford Powerstroke Diesel Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
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.



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



All times are GMT -8. The time now is 02:39 AM.


Powered by vBulletin® Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Search Engine Optimization by vBSEO 3.6.1
Garage Plus, Vendor Tools vBulletin Plugins by Drive Thru Online, Inc.

vB.Sponsors