Thread: FYI - Don't overfil your tank.. When it stops, consider it full.

Page 1 of 2 12 LastLast
Results 1 to 20 of 29
  1. #1 FYI - Don't overfil your tank.. When it stops, consider it full. 
    SE Level Member midrange's Avatar
    Join Date
    Feb 2012
    Location
    Belleville, Ontario
    Posts
    140
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    Hey guys and gals

    So yesterday I was driving the car and the check gas cap light came on. So I did, and i couldn't get the light to go off. Today when getting some other work done on the car i told them, and they got rid of the light, and so far so good.

    I never had the light come on before but last time i filled up, I filled it right up. The garage said that these cars and some other cars, when you fill it up too much, the gas can get in the gas cap and damage the charcoal filter in the gas cap causing it to not do its job.. Makes sense.

    So if my light comes back on, i'll assume thats the what caused it to fail, so i'm sharing what I was told to hopefully avoid it down the road.

    WHen it the gas pump shuts off, consider it full!
    2004 Grand Prix GT1
    Reply With Quote  
     

  2. #2 Re: FYI - Don't overfil your tank.. When it stops, consider it full. 
    Donating Users wulfpack06's Avatar
    Join Date
    Jun 2008
    Location
    KCMO
    Posts
    155
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    i dont have this issue....
    Reply With Quote  
     

  3. #3 Re: FYI - Don't overfil your tank.. When it stops, consider it full. 
    SE Level Member midrange's Avatar
    Join Date
    Feb 2012
    Location
    Belleville, Ontario
    Posts
    140
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    It may or may not cause an issue.. I was just passing on what I was told.
    2004 Grand Prix GT1
    Reply With Quote  
     

  4. #4 Re: FYI - Don't overfil your tank.. When it stops, consider it full. 
    SE Level Member Truckin2001's Avatar
    Join Date
    Feb 2012
    Location
    South GA
    Posts
    120
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    Mid - Thanks for the tip and I will keep it in mind when I fill up!
    Reply With Quote  
     

  5. #5 Re: FYI - Don't overfil your tank.. When it stops, consider it full. 
    GTX Level Member Steel Armadillo's Avatar
    Join Date
    Aug 2010
    Location
    Orlando, Florida, United States
    Posts
    519
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    I never have money to fill it all the way up anymore

    Damn college...
    The evil LG8 still refuses to die.
    Reply With Quote  
     

  6. #6 Re: FYI - Don't overfil your tank.. When it stops, consider it full. 
    Perma-Banned! JK LOL Explicit_Spade's Avatar
    Join Date
    Dec 2007
    Location
    Omaha, NE
    Posts
    7,921
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    I disagree with this... You should have a check valve in the fuel neck on your 04. Also as far as I know there's no charcoal in gas caps since the 80s. That's what we have evap systems for.
    Quote Originally Posted by W-Body Store
    Remember, GM engineers didn't take into account your need for speed.
    Daily Driver: 06 Grand Prix GT / 9.4:1 CR / IS3 Heads / Ported Gen V / ZZP Headers / HPT Pro / Pulleys: 4.25, 3.8, 3.5, 3.4, 3.2, 3.0, 2.9, 2.7
    Projects: 86 Monte Carlo SS / 98 Sonoma / 74 Honda CB750
    Reply With Quote  
     

  7. #7 Re: FYI - Don't overfil your tank.. When it stops, consider it full. 
    GTX Level Member 87IROCZOWNER69's Avatar
    Join Date
    Nov 2011
    Location
    Omaha, NE
    Posts
    1,391
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    Also there was a report that said topping of your gas can give you cancer. I guess because the fumes can escape and eventually cause cancer.
    Reply With Quote  
     

  8. #8 Re: FYI - Don't overfil your tank.. When it stops, consider it full. 
    The mod from over yonder TheOtherNick's Avatar
    Join Date
    Sep 2008
    Location
    Charles City, IA
    Posts
    9,955
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    Topping the tank off can fill up the charcoal canister and ruin it, does not happen very often but it does happen.
    01 gtp-big cam e85 dd 78dodge- guzzling fuel 05 cummins- rollin coal
    SMGPFC Two Nipple General
    Reply With Quote  
     

  9. #9 Re: FYI - Don't overfil your tank.. When it stops, consider it full. 
    GrandPrix Junkie NegativeOne13's Avatar
    Join Date
    Aug 2009
    Location
    Kansas
    Posts
    3,306
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    Just topped it off about an hour ago.... cause racecar.

    And smile it's Blacktooth Grin!
    Reply With Quote  
     

  10. #10 Re: FYI - Don't overfil your tank.. When it stops, consider it full. 
    GTX Level Member
    Join Date
    Feb 2010
    Location
    TN
    Posts
    1,791
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    Bought my GT new in 1997 been topping it off everytime I fill it 300,000 iles and have not had this issue. and I agree with Spade there is no charcol in the cap I would be looking for a ne mechanic
    Reply With Quote  
     

  11. #11 Re: FYI - Don't overfil your tank.. When it stops, consider it full. 
    DUI BABY Bio248's Avatar
    Join Date
    Jan 2008
    Location
    MILWAUKEE
    Posts
    31,340
    Thanks (Received)
    0
    Likes (Received)
    1
    Dislikes (Received)
    0
    i have to top my car off. if i dont see even numbers on the gas pump my whole world ends.
    Reply With Quote  
     

  12. #12  
    SE Level Member Compg4me's Avatar
    Join Date
    Dec 2011
    Location
    Grand rapids Mi
    Posts
    116
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    Quote Originally Posted by Bio248 View Post
    i have to top my car off. if i dont see even numbers on the gas pump my whole world ends.
    I'm OCD like that as well.
    Reply With Quote  
     

  13. #13 Re: FYI - Don't overfil your tank.. When it stops, consider it full. 
    I live here. MoarkatsINmuhtrailer's Avatar
    Join Date
    Apr 2010
    Location
    Ohio
    Posts
    5,150
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    haha me 3. ive not been caring as much lately about it but it still gets me once in awhile
    Reply With Quote  
     

  14. #14 Re: FYI - Don't overfil your tank.. When it stops, consider it full. 
    GrandPrix Junkie NegativeOne13's Avatar
    Join Date
    Aug 2009
    Location
    Kansas
    Posts
    3,306
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    Unless you think logically like I did today. Got fuel for $38.28, got a Mt. Dew... total came out to $40.00... like a bauce.

    And smile it's Blacktooth Grin!
    Reply With Quote  
     

  15. #15 Re: FYI - Don't overfil your tank.. When it stops, consider it full. 
    I live here. TLSheff's Avatar
    Join Date
    Dec 2009
    Location
    Durant, Oklahoma, United States
    Posts
    8,033
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    I've done that before. Figure in gas, chips, a 1lt, and tax and get it square on $50.00.
    Lady at the register looked at me like wow... really?

    F_CK YEA

    Quote Originally Posted by AmericanSoldier View Post
    ...not scanning/monitoring your motor is like bangin a hooker and you just HOPE your not infected.
    Reply With Quote  
     

  16. #16 Re: FYI - Don't overfil your tank.. When it stops, consider it full. 
    GrandPrix Junkie NegativeOne13's Avatar
    Join Date
    Aug 2009
    Location
    Kansas
    Posts
    3,306
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    I do that all the time... but also figure in the discount. If you pay w/ cash you get a 5% discount.

    And smile it's Blacktooth Grin!
    Reply With Quote  
     

  17. #17 Re: FYI - Don't overfil your tank.. When it stops, consider it full. 
    Because Wet Leaves Hippo Machine's Avatar
    Join Date
    Jun 2011
    Location
    Detroit, MI
    Posts
    1,725
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    Overfilling the tank wouldn't cause the gas cap to leak lol. The evap system on these cars often sets off the ses light on our older cars. Mine will have the "small evap leak" code for forever now, not a big deal at all. It detects a leak as small as .04" inches.


    iLoveSpade
    Reply With Quote  
     

  18. #18 Re: FYI - Don't overfil your tank.. When it stops, consider it full. 
    Banned
    Join Date
    Mar 2011
    Location
    CT
    Posts
    1,730
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    IDK about you guys, but when I'm "filling up" after it clicks, I can put another 4 gallons in until it's topped off.
    Reply With Quote  
     

  19. #19 Re: FYI - Don't overfil your tank.. When it stops, consider it full. 
    I live here. stealthee's Avatar
    Join Date
    Mar 2011
    Location
    SWPA
    Posts
    8,782
    Thanks (Received)
    1
    Likes (Received)
    2
    Dislikes (Received)
    0
    I always top off and never have an issue. I'm OCD about even amounts too.


    2011 Mitsubishi Lancer GTS - DD mode
    1991 Mitsubishi 3000GT - Many mods to come
    Reply With Quote  
     

  20. #20 Re: FYI - Don't overfil your tank.. When it stops, consider it full. 
    SE Level Member dert's Avatar
    Join Date
    Jul 2011
    Location
    Big Rapids, MI
    Posts
    63
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    I was told not to overfill because of that issue in school too and saw a couple related problems when i worked in a shop. Doesnt always and wont always cause a problem but i agree it for sure can.
    Reply With Quote  
     

Page 1 of 2 12 LastLast

Similar Threads

  1. Full tank of fuel gauge floats between full and empty.
    By johnnyb in forum 3.8L V6 Naturally Aspirated (L36)(L26)
    Replies: 8
    Last Post: 03-23-2013, 06:17 PM
  2. new pcm. hard downshift from 2nd to 1st at stops??
    By colindunn in forum 3.8L V6 Supercharged (L67)(L32)
    Replies: 15
    Last Post: 09-18-2010, 07:10 PM
  3. Eibach's and the bump stops
    By FuglyGTP in forum Brakes/Suspension/Chassis
    Replies: 6
    Last Post: 08-18-2010, 12:18 PM
  4. better gas mileage when tank is full/almost full
    By azmattaz06 in forum 3.8L V6 Supercharged (L67)(L32)
    Replies: 5
    Last Post: 06-07-2010, 09:53 AM
  5. Metal Gas Tank Flap Broken off and Into Tank
    By indplsin72 in forum 3.8L V6 Supercharged (L67)(L32)
    Replies: 4
    Last Post: 07-15-2008, 08:35 PM
Tags for this Thread

View Tag Cloud

Bookmarks
Bookmarks
Posting Permissions
  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •