Recent Topics
2015 VW GTI autobahn oil questions
by Skyalbo
Yesterday at 11:28 PM
Corrosion in the garage - salt or humidity?
by Kurtatron
Yesterday at 11:13 PM
Darn dogs
by AZjeff
Yesterday at 10:21 PM
New GC?
by Bullwinkle007
Yesterday at 10:04 PM
The guy with the plexiglass head on you tube
by andyd
Yesterday at 09:21 PM
'07 Pacifica Timing Belt Replacement success
by 92saturnsl2
Yesterday at 09:10 PM
SAE 90 v 85/140
by Knuckle078
Yesterday at 09:10 PM
Mobil 1 5W30-HM 5,011 mi, 1999 Ford Escort
by WA1DH
Yesterday at 08:45 PM
what happened to merk
by ernied
Yesterday at 08:34 PM
Schaeffer's oil reviews on Amazon
by zfasts03
Yesterday at 07:41 PM
Decent MP3 player
by Ed_T
Yesterday at 07:08 PM
Letgo
by Donald
Yesterday at 06:52 PM
Tire buying advice
by supton
Yesterday at 06:23 PM
Two versions of M1 5w30 ESP now?
by Patman
Yesterday at 06:21 PM
No older cars in New York State?
by Oldtom
Yesterday at 06:19 PM
2009 Taurus strut mount noise
by terry274
Yesterday at 04:38 PM
A3/B3 vs A3/B4, big difference or irrelevant?
by FordCapriDriver
Yesterday at 03:36 PM
2003 Honda power steering problem
by hogpops
Yesterday at 03:29 PM
Public Service Announcement: Flush Your HW Heater
by gathermewool
Yesterday at 03:25 PM
Fellow 2AZ-FE toyota owners: what oil are you usin
by car51
Yesterday at 03:21 PM
Newest Members
lozpxs, danthemanx07, FunktasticLucky, Knuckle078, penncove
65317 Registered Users
Who's Online
21 registered (dishdude, C4Dave, citationxeleven, 4WD, Bailes1992, chainblu, 1 invisible), 760 Guests and 35 Spiders online.
Key: Admin, Global Mod, Mod
Forum Stats
65317 Members
67 Forums
285952 Topics
4771878 Posts

Max Online: 3590 @ 01/24/17 08:07 PM
Donate to BITOG
Topic Options
#4693969 - 03/13/18 09:05 PM Ford evap leak troubles
buck91 Offline


Registered: 04/17/12
Posts: 2449
Loc: West Michigan
Trying to diagnose a P0457 code on the wife's 2014 Explorer 3.5L GTDI (ecoboost). Started as a warning on the instrument panel to check the fuel cap, which on this car is quite the joke since it has Ford's capless fuel filler. After a while the CEL popped and Forscan Lite shows a P0457 evap leak, likely the fuel filler cap. If I clear the CEL it stays off for a while but always comes back. Tried a little shotgun approach and replaced the charcoal canister vent solenoid; note the purge valve seems to work just fine. Tried the manual filler cleaning procedure which is much touted on youtube with no changes (I was very thorough). No odors or visible leaking of fuel. Some light conversation with the dealer and they swear up and down it can't be the fuel filler neck (well not CAN'T but 99.9% it isn't). Without a smoke machine I am kind of stuck, at this point my next step is to pop the right rear wheelwell out and visualize the filler neck and the vapor hose for obvious signs of damage or leaks. Might have to make a DIY smoke machine, though. I do have a Halloween fog machine would that work? I have some PEX tubing which fits the nozzle, but it seems like that fog likes to condense pretty rapidly.

Below are a couple shots from Forscan. Any thoughts?

P0457:



_________________________
2011 F150 4x4 5.0L
1996 Mustang GT 5spd/ragtop

Top
#4694003 - 03/13/18 09:27 PM Re: Ford evap leak troubles [Re: buck91]
Trav Offline


Registered: 11/20/06
Posts: 18909
Loc: MA, Mittelfranken.de
Is there a way you can plug in or put a cap over the filler as a test? I suspect the filler just going by the size of the leak.
_________________________
ASE L1, Master. Deutsch Meisterbrief.

Top
#4694054 - 03/13/18 10:14 PM Re: Ford evap leak troubles [Re: buck91]
buck91 Offline


Registered: 04/17/12
Posts: 2449
Loc: West Michigan
Well, not really. I could disconnect from the vent solenoid. Actually, I did some more digging on my obd2 adaptor and Forscan and I believe I can run the adaptor with my laptop which means I should be able to utilize some of the more advanced features in forscan to check and see a couple things. Its also possible the purge solenoid (which, incidentally, I cannot find ANY part numbers for) would be stuck closed. If I can manually command it to open with the forscan then I could check for vacuum there... Otherwise, I'll have to check for vacuum at the vent solenoid connection. Maybe make a DIY smoker for the tank.
_________________________
2011 F150 4x4 5.0L
1996 Mustang GT 5spd/ragtop

Top
#4694087 - 03/13/18 10:42 PM Re: Ford evap leak troubles [Re: buck91]
2strokeNorthstar Offline


Registered: 07/19/17
Posts: 274
Loc: PR CA, USA
Get a cheap cigar and a piece of hose. Fire it up and blow the smoke in. Works really well. Taste terrible but so does spending $150 on a smoke test. Diagnosed my BMW better than the mechanic. I had to show him where I saw the leak and he had to crank up the pressure to replicate / find it. He thought it was fine with the initial test.
My 01 F150 the EVAP test never completes. Even after years and 1000's of miles. Never fails just never completes. Don't know why.


Edited by 2strokeNorthstar (03/13/18 10:43 PM)

Top
#4694118 - 03/13/18 11:33 PM Re: Ford evap leak troubles [Re: buck91]
bdcardinal Offline


Registered: 06/03/05
Posts: 11014
Loc: Santa Barbara, CA
Filler necks and purge valves are really common on these.
_________________________
2014 Ford Mustang GT Track Pack
1995 Ford Mustang GT

Ford/Mazda Parts Counter
NRA Benefactor Member
Opinions expressed are my own.

Top
#4694163 - 03/14/18 01:45 AM Re: Ford evap leak troubles [Re: buck91]
michaelluscher Offline


Registered: 10/07/12
Posts: 2424
Loc: Staten Island, NY
FORScan on a laptop has some bidirectional control, you'll probably be able to control the purge/vent solenoid while smoke testing

Halloween smoke machine is a good bet, that's what I use for vacuum leaks

But if it's under 8y/80k miles, this should still be covered under emissions warranty, think about this if any expensive parts are needed
_________________________
'06 Toyota Camry SE V6 3MZ-FE 100k
'01 Mercury Villager Estate VG33E 52k
'06 Ford Taurus SE Vulcan 60k
'13 Chrysler 300 3.6 Pentastar 230k

Top
#4694245 - 03/14/18 06:40 AM Re: Ford evap leak troubles [Re: buck91]
buck91 Offline


Registered: 04/17/12
Posts: 2449
Loc: West Michigan
88k. 😒
_________________________
2011 F150 4x4 5.0L
1996 Mustang GT 5spd/ragtop

Top
#4694789 - 03/14/18 04:58 PM Re: Ford evap leak troubles [Re: buck91]
buck91 Offline


Registered: 04/17/12
Posts: 2449
Loc: West Michigan
Well for what its worth, after messing with the purge valve duty cycle in Forscan it became apparent that it was stuck. Some moderate tapping with a small hammer and a couple squirts of brake cleaner freed it up. For now. Can't find a replacement part number on a couple different of my go to websites so I'll have to call the dealer...
_________________________
2011 F150 4x4 5.0L
1996 Mustang GT 5spd/ragtop

Top
#4694794 - 03/14/18 05:09 PM Re: Ford evap leak troubles [Re: buck91]
bdcardinal Offline


Registered: 06/03/05
Posts: 11014
Loc: Santa Barbara, CA
DG1Z-9G271-B

Only serviced with the line the valve is on.
_________________________
2014 Ford Mustang GT Track Pack
1995 Ford Mustang GT

Ford/Mazda Parts Counter
NRA Benefactor Member
Opinions expressed are my own.

Top
#4694805 - 03/14/18 05:30 PM Re: Ford evap leak troubles [Re: bdcardinal]
buck91 Offline


Registered: 04/17/12
Posts: 2449
Loc: West Michigan
Originally Posted By: bdcardinal
DG1Z-9G271-B

Only serviced with the line the valve is on.



cheers

Thanks! That thing wasn't listed ANYWHERE. Even the local dealer gave my the vent solenoid p/n.
_________________________
2011 F150 4x4 5.0L
1996 Mustang GT 5spd/ragtop

Top
#4694828 - 03/14/18 05:45 PM Re: Ford evap leak troubles [Re: buck91]
bdcardinal Offline


Registered: 06/03/05
Posts: 11014
Loc: Santa Barbara, CA
The description is "tube assembly, also includes VMV valve." VMV is Vapor Management Valve, also knows as the purge valve. Fortunately the tube has quick disconnects on each end.
_________________________
2014 Ford Mustang GT Track Pack
1995 Ford Mustang GT

Ford/Mazda Parts Counter
NRA Benefactor Member
Opinions expressed are my own.

Top