check engine light - Jeep Wrangler Forum
Jeep Wrangler Forum

Go Back   Jeep Wrangler Forum > TJ Jeep Wrangler Forum > TJ General Discussion Forum

Join Wrangler Forum Today


Reply
 
Thread Tools

Please support our sponsors and let them know you heard about them on WranglerForum.com
Old 07-02-2012, 06:58 AM   #1
Supporting Member

WF Supporting Member
 
fkurzat's Avatar
 
Join Date: Nov 2010
Location: connecticut
Posts: 57
check engine light

I have an 04 rubicon and my CE light came on this morning, I just hit 60,000 miles last week. There doesnt seem to be anything wrong with the operation of the motor. Do these have triggers for scheduled maintainance? I also just took out the #4 fuse behind the glove box so my overhead lights would shut off because I took off the doors and the roof. Could that have anything to do with it? Any advice?
Thanks,
Frank

fkurzat is offline   Quote Quick Reply
Old 07-02-2012, 07:32 AM   #2
Jeeper
 
mac56's Avatar
 
Join Date: Mar 2012
Location: Niles, Michigan
Posts: 311
Images: 4
My 2003 turned out to be a bad gas cap, the seal around it wasn't sealing properly anymore. Replaced it, disconnected the positive battery cable, reconnected it ( this resets the computer ) and the problem was solved. Gas cap about $10.00 at Auto Zone, where they can hook a diagnosis tester to your Jeep to give you an idea whats wrong. My TJ had about 62,000 when this happened to me.... Mike

__________________
Jeep... the original thrill ride since 1941 !!! OlllllllO


2003 TJ 4.0 SPORT
mac56 is offline   Quote Quick Reply
Old 07-02-2012, 07:45 AM   #3
I am JD & It's my Dream

WF Supporting Member
::WF Administrator::
 
JDsDream's Avatar
 
Join Date: Jan 2009
Location: The Peach State
Posts: 26,909
Images: 4
On the 04 you can pull the code yourself. Using your key, quickly switch your ignition to the on (not start) position, then off, on, off, on. Leave in on position and in a sec or 2 the code will show up in your odometer window. When all the codes have been read, the odometer will read "done". Once you get the code/s, post them here and we will have a better idea of what's going on.
__________________
The kind of woman that when my feet hit the floor each morning the devil says "Oh Crap, She's up!"

To All Of Our Forum Veterans and Active Service Members.
Our Debt To You Is Greater Than We Could Ever Repay.
Thank You

Become a Supporting Member!
JDsDream is offline   Quote Quick Reply
Old 07-02-2012, 08:00 AM   #4
Supporting Member

WF Supporting Member
 
fkurzat's Avatar
 
Join Date: Nov 2010
Location: connecticut
Posts: 57
Hey, Thanks for the quick responses! I ran the code and it came up as P 0455. Any ideas?
fkurzat is offline   Quote Quick Reply
Old 07-02-2012, 08:26 AM   #5
I am JD & It's my Dream

WF Supporting Member
::WF Administrator::
 
JDsDream's Avatar
 
Join Date: Jan 2009
Location: The Peach State
Posts: 26,909
Images: 4
The P0455 is "EVAP System Large Leak Detected" - very commonly, this can be a loose, missing or faulty Fuel Cap. Even putting fuel into the tank while the engine is running can set this code. Make sure the cap is tight. Check the underside of the cap for any visible damage. If there are any doubts, replace the cap with one that meets Jeep Specs (those "universal" or "discount" caps will not always cure the problem. If the cap is known to be good, another common fail item associated with this code is the EVAP Purge Solenoid. Carefully inspect the vacuum lines to the solenoid for any cracks, holes, or loose/missing connections. The solenoid should also be tested for proper operation. If the solenoid checks ok, the best way to find a "leak" in the EVAP system, is to have the system "smoked". This is where a machine forces smoke throught the system, and the leak will reveal itself. Prices for this service vary from shop to shop, but it is the most efficient way, as chasing down a leak in the EVAP system can drive you mad
__________________
The kind of woman that when my feet hit the floor each morning the devil says "Oh Crap, She's up!"

To All Of Our Forum Veterans and Active Service Members.
Our Debt To You Is Greater Than We Could Ever Repay.
Thank You

Become a Supporting Member!
JDsDream is offline   Quote Quick Reply
Old 07-02-2012, 08:59 AM   #6
Supporting Member

WF Supporting Member
 
fkurzat's Avatar
 
Join Date: Nov 2010
Location: connecticut
Posts: 57
Thanks, I'll start with the cap, because I know there is something wrong with it. It doesn't click when I tighten it. I never know if it is on all of the way. so, all I have to do is disconnect the battery after to reset? I've heard that I have to disconnect both + and - and touch the disconnected cables together to discharge the capacitor. Is this true?
And thanks again for your help!
fkurzat is offline   Quote Quick Reply
Old 07-02-2012, 09:08 AM   #7
I am JD & It's my Dream

WF Supporting Member
::WF Administrator::
 
JDsDream's Avatar
 
Join Date: Jan 2009
Location: The Peach State
Posts: 26,909
Images: 4
Once the problem is corrected the light should go out. It may take a few starts but it will go out on it's own once it registers that the problem no longer exists.
__________________
The kind of woman that when my feet hit the floor each morning the devil says "Oh Crap, She's up!"

To All Of Our Forum Veterans and Active Service Members.
Our Debt To You Is Greater Than We Could Ever Repay.
Thank You

Become a Supporting Member!
JDsDream is offline   Quote Quick Reply
Old 07-02-2012, 09:25 AM   #8
Supporting Member

WF Supporting Member
 
fkurzat's Avatar
 
Join Date: Nov 2010
Location: connecticut
Posts: 57
thanks again! I'm going to pick up the cap right now!
fkurzat is offline   Quote Quick Reply
Old 07-02-2012, 02:31 PM   #9
Sponsoring Vendor
 
Join Date: May 2011
Location: Albion, IN
Posts: 3,354
We had the same problem with a 1998 TJ Wrangler. The problem turned out to be a a rust hole in the vent line off the sending unit back by the tank. Repaired the line. cleared the code and back in business.
Baseline 4x4 Outfitters is offline   Quote Quick Reply
Old 07-02-2012, 02:35 PM   #10
Jeeper
 
woodbilly's Avatar
 
Join Date: Apr 2012
Location: redwood city
Posts: 47
If you leave your Jeep running while fueling, it will also give this code. When you replace gas cap after filling, twist it at least 3 times minimum after it click locks. If engine light comes on again, after fueling, you can just unhook positive battery cable to reset it.
Before buying new cap, try these tips.

woodbilly is offline   Quote Quick Reply
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Jeep Wrangler Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

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.



Thread Tools

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 Off
Refbacks are Off



logo carid shop wrangler parts carid fender flares custom wheels store avs deflectors at carid

» Network Links
»Jeep Parts
» Featured Product

All times are GMT -5. The time now is 03:46 AM.



Jeepģ, Wrangler, Liberty, Wagoneer, Cherokee, and Grand Cherokee are copyrighted and trademarked to Chrysler Motors LLC.
Wranglerforum.com is not in any way associated with the Chrysler Motors LLC