ESOF vac pump issue on 2008 F250 6.4 - Ford Truck Enthusiasts Forums

Go Back  Ford Truck Enthusiasts Forums > Diesel > 6.4L Power Stroke Diesel
Reload this Page >

ESOF vac pump issue on 2008 F250 6.4

Notices
6.4L Power Stroke Diesel Engine fitted to 2008 - 2010 F250, F350 and F450 pickup trucks and F350 + Cab Chassis

ESOF vac pump issue on 2008 F250 6.4

 
  #1  
Old 01-15-2018, 05:34 PM
jbarryb
jbarryb is offline
New User
Thread Starter
Join Date: Jan 2018
Posts: 1
jbarryb is starting off with a positive reputation.
ESOF vac pump issue on 2008 F250 6.4

ESOF vacuum lines on 2008 F250 6.4 have deteriorated and I am in the process of replacing but during diagnosis I noticed that the pump cycles momentarily every few seconds (kicks on and off) even when the vac port is plugged at the pump (eliminating all lines as a potential leak). Does this mean that I have a defective/leaking pump assembly also? I suspect this behavior is not normal.
 
  #2  
Old 01-15-2018, 08:10 PM
73F700's Avatar
73F700
73F700 is offline
Senior User
Join Date: Dec 2017
Location: Ontario, Canada
Posts: 296
73F700 is gaining momentum as a positive member of FTE.73F700 is gaining momentum as a positive member of FTE.
I would agree that the pump is probably shot. If it were me I would spray the pump with windex or something to see if I could figure out where the leak is.
 
  #3  
Old 01-25-2018, 09:57 AM
254XP3's Avatar
254XP3
254XP3 is offline
Junior User
Join Date: Nov 2015
Location: Utah
Posts: 69
254XP3 is starting off with a positive reputation.
Not sure what Windex would do but if it were me, I would hook a vacuum gauge to the pump port, let it build vacuum to shut off and monitor for leakdown. You current plug could be leaking, pump housing cracked etc. Just replaced all lines and upgraded the DeGas bottle. Not a bad job to run the lines unless you have to replace lines going to hubs, that takes a bit longer. Be sure you vac test the lines at the pump when done to make sure you don't have a leak when lines are done.
 
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
irydasteelhorse
1999 to 2016 Super Duty
6
01-16-2016 10:56 AM
ZPI28
1999 to 2016 Super Duty
1
03-12-2015 04:28 PM
jeem
1999 - 2003 7.3L Power Stroke Diesel
3
06-30-2013 09:08 AM
ReAX
1999 to 2016 Super Duty
0
10-31-2010 02:46 PM
SPL Tech
General NON-Automotive Conversation
39
03-06-2007 10:42 AM


Thread Tools
Search this Thread
Quick Reply: ESOF vac pump issue on 2008 F250 6.4


Contact Us About Us Archive Advertising Cookie Policy Privacy Statement Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
 
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in: