Check Engine light came on, same time my fuel started spilling over during fill up -
LinkBack Thread Tools
post #1 of 2 Old 08-02-2010, 08:39 PM Thread Starter
2006 TJ Wrangler 
Join Date: Dec 2004
Location: Wood Dale, Chicago
Posts: 151
Check Engine light came on, same time my fuel started spilling over during fill up

Anyone have an Idea why my check engine light is on? It started happening the same time my Jeep started spilling fuel during fill ups. I had the codes read and its saying its a gas cap, so I bought a new gas cap and cleared the error and a day later the light came back on. Somehow related to the fuel spilling.

My fear is that the Jeep won't pass state emissions, so I need to get this fixed. :/

-=- 2006 Yellow TJ Rubicon -=-
-=- 4" Rough Country Lift, Front mounted Ramsey Winch, Rock Hard Rear Bumper -=-
-=- Currie Johnny Joint Arms, Currie Tie Rods, Cobra CB -=-
Nielubie is offline  
Sponsored Links
post #2 of 2 Old 08-02-2010, 09:03 PM
Registered User
1997 TJ Wrangler 
Join Date: May 2009
Location: las vegas
Posts: 987
Sounds like a problem with the vent. The little vent hose is what normally should keep it from overflowing as it allows air to escape from the top of the tank as fuel is rushing in. If you are overflowing, you might have an obstructed vent hose, though it seems unlikely. Your check engine light will come on if the smog gremlins think you may be unleashing raw fuel vapors to ravage the ozone and warm the globe. It's gotta be something back there. First things first... Disconnect the neg battery cable for a couple minutes to clear your computer codes... Reconnect and see if the check engine light comes back on. If it does, start investigating your fuel filler area since you already replaced your cap. Problem may be solved already. Your computer will continue to remind you there WAS a problem until you drive lots of miles or reset the codes. Hope this helps.

Just reread your post and saw you already cleared the codes. It's gotta be something back there. Same thing would probably cause overflow.

Last edited by dmgiff; 08-02-2010 at 09:05 PM. Reason: Stupidity
dmgiff is offline  

check engine light , CEL

Quick Reply

Register Now

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

User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a valid e-mail address for yourself.

Email Address:


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.

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page

Similar Threads
Thread Thread Starter Jeep Forums Replies Last Post
gas spilling out when i fill up my tank??wtf vicker YJ Wrangler Technical Forum 8 04-14-2010 07:35 PM
Check engine light came on for the first time, what do these mean? chaznad TJ Wrangler Technical Forum 0 03-28-2009 02:54 PM
97 4.0 runs great, bad fuel mileage,sut on tailpipe CHECK ENGINE light comes on jeepfreak_5 TJ Wrangler Technical Forum 2 12-21-2008 04:58 PM
Check Engine Light / Fuel Guage lukera TJ Wrangler Technical Forum 9 04-19-2006 08:01 PM
check engine light came on for the first time in my 98 sport today since I've had it illumin8em TJ Wrangler Technical Forum 14 01-16-2004 12:01 PM

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 Off
Pingbacks are On
Refbacks are On

For the best viewing experience please update your browser to Google Chrome