Fueling Problems Please Help! - Chevy Cobalt Forum / Cobalt Reviews / Cobalt SS / Cobalt Parts
Problems and Service Talk about any mechanical problems you are having

Closed Thread
 
LinkBack Thread Tools Display Modes
post #1 of 11 (permalink) Old 05-27-2013, 04:38 PM Thread Starter
Newcomer
 
Join Date: May 2013
Posts: 7
Fueling Problems Please Help!

Im sure you guys have heard this question a million times. Why is my car not letting me fill up the gas tank all the way without the pump shutting off? It stops every 7/10 of a gallon and then repeat. I have researched it some. I just replaced the fuel filter and that wasnt the issue. Idk if the fuel neck is clogged.....or somthing about a evap solenoid. I am throwing an evap code. This problem is a pain in the a$$. 30 minutes at the gas station every fillup haha. Can somone please help. I have a 2006 LS.
danirwin is offline  
Sponsored Links
Advertisement
 
post #2 of 11 (permalink) Old 05-27-2013, 05:03 PM
Newcomer
 
Johnnyboy's Avatar
 
Join Date: May 2013
Location: Texas
Posts: 1
Garage
Do you happen to have a diagnostic scanner tool or have you run into Auto Zone to let them check your codes?
If you have a chiton manual, you can look up the code once you find out the code number and see what it is and what to do about it.
Johnnyboy is offline  
post #3 of 11 (permalink) Old 05-27-2013, 06:04 PM
Super Moderator
YourCobalt.com Premium Member


 
Coby7's Avatar
 
Join Date: Oct 2011
Location: Magnetic Hill, New-Brunswick
Posts: 11,820
Garage
Canister evap solenoid. DTC P0449 Evaporative Emission Control System Vent Valve/Solenoid Circuit Malfunction
DTC P0449
Circuit Description
A battery voltage is supplied to the evaporative emission (EVAP) canister vent solenoid valve. The control module grounds the EVAP canister vent solenoid valve control circuit to close the valve by means of an internal switch called a driver. The scan tool displays the commanded state of the EVAP canister vent solenoid valve as ON or OFF. The control module monitors the status of the driver. If the control module detects an incorrect voltage for the commanded state of the driver, this DTC sets.

Takes about 5 minutes to change. About $35 for a new one if you don't shop around.








Every minute spent angry is a happy minute lost for ever and ever!!!
Drives 2016 Cocoa Buick Encore 1.4L Turbo auto KL4CJDSB2GB652675
Drives 2016 Sunset Orange Trax LT1 1.4L Turbo auto 3GNCJPSB8GL142716

Never drive faster than your guardian angel can fly

Last edited by Coby7; 05-27-2013 at 06:19 PM.
Coby7 is offline  
 
post #4 of 11 (permalink) Old 05-27-2013, 07:05 PM
Cobalt Specialist


 
Join Date: Jun 2011
Location: Charlotte, NC
Posts: 1,145
^ agreed. Your charcoal canister is loaded with gas fumes, which is causing your gas filler to do that. The purge solenoid doesn't contain enough voltage to charge the coil, releasing the gas fumes back into the intake, which replacing it should help. Also, AutoZone's scan tool is just a generic scanner, cheapo. If you want to see what its supposed to read, get one that has access to PIDs to read the voltage on each sensor/actuator. Most generic scanners with PIDs will be for this particular DTC, EGR & EVAP Emissions Control. Should read above .1v-5v max for reference (5v=signal voltage at max load, .1v=lowest reading and solenoid closed).

2009 Cobalt LS XFE U74
Mods: K&N Typhoon Intake, Option Cat-Back Exhaust, Cosmo Short shifter, Maxxim Ahead 17X7's, MPx shorty antenna, FE5 Strut/shocks, Tein S Techs, Moog endlinks, Moog spring seaters, ZZP shorty header, LSJ downpipe, LNF front grille

Last edited by 5t3alth; 05-27-2013 at 07:12 PM.
5t3alth is offline  
post #5 of 11 (permalink) Old 05-28-2013, 04:20 AM
Super Moderator
YourCobalt.com Premium Member


 
Coby7's Avatar
 
Join Date: Oct 2011
Location: Magnetic Hill, New-Brunswick
Posts: 11,820
Garage
The one I purchased was a "Dorman 911-036" did the trick.

Every minute spent angry is a happy minute lost for ever and ever!!!
Drives 2016 Cocoa Buick Encore 1.4L Turbo auto KL4CJDSB2GB652675
Drives 2016 Sunset Orange Trax LT1 1.4L Turbo auto 3GNCJPSB8GL142716

Never drive faster than your guardian angel can fly
Coby7 is offline  
post #6 of 11 (permalink) Old 05-28-2013, 07:56 AM Thread Starter
Newcomer
 
Join Date: May 2013
Posts: 7
Quote:
Originally Posted by Coby7 View Post
The one I purchased was a "Dorman 911-036" did the trick.
Will autozone return these parts if they dont work lol. I got a parts dealer i can get this stuff for cost. But i would get it from autozone to see if that did the trick
danirwin is offline  
post #7 of 11 (permalink) Old 05-28-2013, 09:55 AM
Super Moderator
YourCobalt.com Premium Member


 
Coby7's Avatar
 
Join Date: Oct 2011
Location: Magnetic Hill, New-Brunswick
Posts: 11,820
Garage
First remove yours and check it with a 12V if it works everytime and doesn't stick it's not your problem. Remove it before you need to fill your car with gas. If it doesn't kick the pump you know it's your problem. Just disconnect, turn counterclockwise and pull out. That simple, easier than changing the fuel filter I'll tell you that much.

Every minute spent angry is a happy minute lost for ever and ever!!!
Drives 2016 Cocoa Buick Encore 1.4L Turbo auto KL4CJDSB2GB652675
Drives 2016 Sunset Orange Trax LT1 1.4L Turbo auto 3GNCJPSB8GL142716

Never drive faster than your guardian angel can fly
Coby7 is offline  
post #8 of 11 (permalink) Old 05-28-2013, 03:11 PM Thread Starter
Newcomer
 
Join Date: May 2013
Posts: 7
Quote:
Originally Posted by Coby7 View Post
First remove yours and check it with a 12V if it works everytime and doesn't stick it's not your problem. Remove it before you need to fill your car with gas. If it doesn't kick the pump you know it's your problem. Just disconnect, turn counterclockwise and pull out. That simple, easier than changing the fuel filter I'll tell you that much.

So your saying remove it, go fill up my car, and if the gas pump doesnt kick off, then that is the part I need to replace???? Sorry you are very helpful, but I'm pretty close to retarded when it comes to the mechanics of a car . Now if you need a paintjob, thats a different story.
danirwin is offline  
post #9 of 11 (permalink) Old 05-28-2013, 03:21 PM
Super Moderator
YourCobalt.com Premium Member


 
Coby7's Avatar
 
Join Date: Oct 2011
Location: Magnetic Hill, New-Brunswick
Posts: 11,820
Garage
Quote:
Originally Posted by danirwin View Post
So your saying remove it, go fill up my car, and if the gas pump doesnt kick off, then that is the part I need to replace????
Exactly, you won't do any harm for a few hours, it's going to set a code but you already have a code.

Every minute spent angry is a happy minute lost for ever and ever!!!
Drives 2016 Cocoa Buick Encore 1.4L Turbo auto KL4CJDSB2GB652675
Drives 2016 Sunset Orange Trax LT1 1.4L Turbo auto 3GNCJPSB8GL142716

Never drive faster than your guardian angel can fly
Coby7 is offline  
post #10 of 11 (permalink) Old 05-29-2013, 09:31 AM Thread Starter
Newcomer
 
Join Date: May 2013
Posts: 7
Quote:
Originally Posted by Coby7 View Post
Exactly, you won't do any harm for a few hours, it's going to set a code but you already have a code.

THAT WAS IT!!!! Dude yall are life savers man. 2 years ive been dealing with this bullshit! And everyone around town wanted a average of $100 to just look at it! Thank you everyone for saving the day!:tha nks
danirwin is offline  
Sponsored Links
Advertisement
 
Closed Thread

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



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
Trackbacks are On
Pingbacks are On
Refbacks are On

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