Serious Explorations Ford Explorer and Ranger Message Board
#1 Resource for Ford Explorer and Ranger Owners - By Enthusiasts, for Enthusiasts.

Ford Explorer Generation Guide

2016 Explorer Forums Elite Membership Chat Elite Rides Reviews Gallery
Go Back   Ford Explorer and Ranger Forums "Serious Explorations" > Ford Explorer Ranger Repair - Troubleshooting - Modifications & Detailing Forums > 2011 - 2016 Ford Explorer 5th Generation Explorer > Stock 2011 - 2016 Ford Explorer Discussion


Stock 2011 - 2016 Ford Explorer Discussion 2011 - 2016 Ford Explorer reviews, problem solving, maintenance, TSB, service bulletins, owner reviews, specifications, Ecoboost.

Hissing while idling... EVAP system leak?

Thread Tools
Old 12-27-2012, 01:40 AM   #1
Philadelphia, PA
2011 Ford Explorer
Join Date: May 2012
Posts: 234

Vehicle Specs

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 35 Post(s)
(Original Poster)
Hissing while idling... EVAP system leak?

Sometimes [I would say rarely] when I start my ex via the remote start option on the key fob, I hear a hissing sound. It sounds like a tea pot kind of.... It goes away after about a minute. I heard somewhere that it could be a leak in the EVAP system? I also read that this type of leak should trigger a check engine light to turn on? I'm going to bring it up to my dealer during my next service but I just want to know if anyone else is experiencing the same thing. It doesn't really seem to effect the performance of my ex at all. The sound is just odd.

2011 Ford Explorer Limited 4WD
Build Date 06/11
foxtemple is offline   Reply With Quote
( Join the Elite Explorers )

Join the Elite Explorers for only $20 a year

Explorer Forum has probably saved you that much already, and will continue to save you money as you learn how to diagnose and fix problems yourself, and learn which modifications really work without having to experiment on your own. Elite Explorer members can change the forum "styles" to eliminate most ads, including the blue underlined links, and no ads on photos. Other benefits include the ability to store 1000 Private Messages, add your own avatar to your posts, upload photo attachments directly to your posts and to our Photo Gallery and more. Join the Elite Explorers today. Your support of the forum is greatly appreciated.

Old 12-27-2012, 09:54 AM   #2
Dr Plastic
Elite Explorer
Newport News, Virginia
Dr Plastic's Avatar
'15 Limited FWD
Join Date: Jul 2005
Posts: 579

Vehicle Specs

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 125 Post(s)
Not a leak but it may be the EVAP system doing a "leak down" test. at Start up the EVAP system has a small compressor that pressurizes the system. it looks for any leak down in the system. It measures the amount of leakage over a 1 minute period. a certain amount is allowed but if it is more than the predetermined limit it will flag the system for a leak. This was a problem when the OBD III rules came out. Especially if you left the gas cap loose or off. You are hearing that compressor running and or hearing the pressurized air venting after the test.

2016 Mustang GT Premium
Ruby red, Nav, 6 speed Automatic
U.S. Army Retired, 1978 - 1998

"Imagination is more important than knowledge" - Albert Einstein
Dr Plastic is offline   Reply With Quote
Old 01-06-2013, 02:50 PM   #3
Jena, Louisiana
2011 Explorer Limited
Join Date: Nov 2012
Posts: 18

Vehicle Specs

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Mine is still doing this on a cold startup. Tea kettling whistle. I had the fuel pump changed and that wasn't it. Is this noise on all of them?
dbm1515 is offline   Reply With Quote

Suggest this thread to friends:

evap leak, hissing

Similar Threads
Thread Thread Starter Forum Replies Last Post
EGR System O&T 2000StreetRod Under the Hood 16 08-17-2010 04:14 PM
How to test my A/C Glacier991 or anyone MadExplorer93 Explorer, Ranger, A/C & Heater systems HVAC 49 08-08-2007 09:30 PM
A/C Diagnosis help n0c7 Stock 1991 - 1994 Explorers 9 07-30-2007 07:58 PM
Help needed - cooling system leak and problem with 92 XLT Jason in OR Under the Hood 0 01-25-2005 06:44 PM

Join the "Elite Explorers" Today!

Top of Page

Thread Tools

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 Off

Forum Jump

All times are GMT -5. The time now is 04:51 PM.

US Flag
We Support Our Troops!

Copyright 2015 - 1996 Rick Horwitz Photography

Ford Motor Company is not involved in the management of this site in any way.

All tips on this site are for use at your own risk and discretion.

Modifying the suspension on any vehicle will cause changes to its handling characteristics.

Vendor Tools vBulletin Plugins by Drive Thru Online, Inc.