Ford Forum - Enthusiast Forums for Ford Owners

Ford F-250 & Ford F-350 The heavier duty full sized trucks from Ford, offering bigger, more powerful engines and drivetrains for the abuse they may go through in the workplace.

gas cap suction

   
Old Jan 24, 2012 | 03:55 AM
Share
  #1  
BigRedFord's Avatar
Thread Starter
|
Junior Member
Joined: Jan 2010
Posts: 23
Default gas cap suction
I just bought a new gas cap and drove for about 5 miles from the parts store home and unscrewed it, a huge rush of air went into the tank (not out), is this a problem? i feel like it shouldnt be doing that.
 
Reply
Old Jan 24, 2012 | 12:49 PM
Share
  #2  
hanky's Avatar
Senior Member
Joined: Jun 2010
Posts: 16,557
Default
There is an evap syst test that runs to check the integrity of the evap system . One way it does this is with vacuum. I would suspect one of the two valves involved is malfunctioning.
 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
What is best to use for flushing/cleaning suction pump?
daveranger
General Tech
0
Jul 19, 2008 08:39 PM
F150 gas blows out of gas cap
mikegigabyte
Ford F-150
1
Feb 29, 2008 08:25 AM
check gas cap light on
loomisgang
Ford Escape
1
Aug 28, 2007 04:05 PM
96 GL gas cap problem?
CharlesC
Ford Contour
6
Jan 21, 2007 11:44 PM
Gas cap clicking closure.....
reggi05
Ford Ranger
1
Jan 28, 2006 09:03 PM
Tags
Back to Subforum
Ford F-250 & Ford F-350
View Next Unread
NEED HELP with 2000 F350


Thread Tools
Search this Thread
Search this Thread:

Advanced Search

Advanced Search

All times are GMT -5. The time now is 12:43 PM.