Every Eco owner needs to know this! [ CONFIRMED ] - Page 12
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Thread: Every Eco owner needs to know this! [ CONFIRMED ]

  1. #111
    Learning about my Cruze
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    These are great arguments and I appreciate all the responses and feedback thus far as I am the original poster here...
    I now think we really need to call GM and interview someone and post it on YouTube so we can get a definite answer
    Cheers! ..and still lovin my Taupe Gray ECO manual with new fog lamps installed
    • 1981 Ford F-100 3 Spd OD MT
    • 1994 Ford Ranger 5 Spd MT
    • 2001 Kia Sephia 5 Spd MT
    • 2011 Cruze Eco 6 Spd MT

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  3. #112
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    Quote Originally Posted by Quazar View Post
    Also, the stop or choke, would most likely be located at or on the fill tube and would have nothing to do with the pump itself, as the pump is located about a foot from where the gas enters. Once again, there is no listing for a choke part yet.
    This is not how a fuel fill / shut off works.

    I would suggest you google evap systems, and read up.

    This is for a different car but read this and you will see how Ford does it.

    ALLDATAdiy.com - 2001 Ford Escort ZX2 L4-2.0L DOHC VIN 3 - Evaporative Emission Systems

  4. #113
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    Quote Originally Posted by davhamm View Post
    This is not how a fuel fill / shut off works.

    I would suggest you google evap systems, and read up.

    This is for a different car but read this and you will see how Ford does it.

    ALLDATAdiy.com - 2001 Ford Escort ZX2 L4-2.0L DOHC VIN 3 - Evaporative Emission Systems
    Thank you for that, and the explanation.

  5. #114
    jan
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    Quote Originally Posted by GSDB View Post
    Sorry, but your site is ugly, slow and full of irritating clicks and commercials. I've seen a lot of conversion sites and nothing beats http://convertking.net. It is fast, clear and very reliable. And did you see their options? You can change thousands- and decimalmark to everything you would like it to change to. Very neat for pasting into, for example, excel.

  6. #115
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    I am looking at the stock calibration files of a '11 Eco manual and '11 LT automatic with EFILive. Three tables relevant to this topic are very different in the two vehicles' Engine Control Modules:

    F0504 "Primary Fuel Tank Size" by 4.509804% (12.7 <-> 15.7)

    F0513 "Combined Fuel Tank Capacity" by 4.822304% (12.6 <-> 15.9)

    F0505 "Primary Fuel Tank Sender Calibration" by 2.781863%

    (Calibrates the primary tank fuel level sender to an actual fuel volume level.)

    For you local guys to whom I am able to offer my legendary tuning services ,
    I would easily and gladly be able to alter these settings if in the future it becomes necessary for some reason. Maybe it will become a popular mod to make all Ecos 15+ gallon, and software calibration will be required



    Last edited by Boost; 08-23-2011 at 10:49 PM.

  7. #116
    Handbrake Released SeanM402's Avatar
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    Quote Originally Posted by 70AARCUDA View Post
    ...read about the EPA pump fuel/vapor "recovery" requirements.

    ...it's especially "invisible" in CARB land because the huge accordian collars hide both sound and smell from you...and all feel of fuel being siphoned back to the tank.


    ...like I wrote, there might be another explanation.

    What if they dont have the "huge accordion collars" on the nozzle? I live in WI and my job requires me to travel 98% of the time through WI, MN and MI. I have only found 1 gas station with the "collars" on the nozzle.

  8. #117
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    I gave up on reading this whole thing but I only have 2 things to say

    #1: How do you guys know you aren't pumping a buttload of fuel into your evap system? It's all find and dandy they use the same tank but since you haven't seen INSIDE the tank how do you know it isn't different? There are 2 different fuel pumps and senders listed on the parts list, one for 13 gallon and one for "not" 13 gallon, if the tanks were identical they would be identical and not have different parts.

    #2 Except for really long road trips why would you want to? As it is now it takes me about a week to burn through a tank. The only difference you will get is a slight reduction in gas mileage (barely tangible I'm sure, but it WILL be there) and without knowing where that fuel may be back flowing too I am gonna stick with what the manufacturer tells me until I see inside a tank.

    There is no benefit to them doing this. I mean someone brought up highway safety but most of the hybrids and diesel cars can go well in excess of 400 miles, as can trucks with 35 gallon tanks and I am sure a slew of other cars. I just can't grasp ANY reason why GM would care if you put in 3 extra gallons on an ECO unless they changed something. It just doesn't add up


    Edit: Fuel tank straps are different too
    Last edited by NBrehm; 08-23-2011 at 11:34 PM.
    Nick
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    2011 Cruze Eco
    1988 Pontiac Trans Am GTA http://www.fquick.com/garages/viewvehicle.php?id=9723
    In the recent past:
    2002 Trans Am WS6 346CI of unbridled fury! 469RWH/434RWTQ 11.01 @ 123MPH You will be missed!
    2005 Subaru Legacy GT 309WHP/357RWTQ 12.21 @ 113
    2000 Subaru Impreza RS 203WHP/201WTQ 14.2 @ 103


  9. #118
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    Nick, I was thinking that may cause a MIL (check engine light). I agree with your second point but whatever the customers demand, that's what we have to try to supply

  10. #119
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    But why would a customer demand to not be able to carry 3 gallons of gas? 18 pounds isn't gonna make a tangible difference anywhere except over a loooooong period of time. In my mind there has to be more to it. I am willing to bet it is different and the reason has something to do with the different rear suspension.
    Last edited by NBrehm; 08-23-2011 at 11:38 PM.
    Nick
    USAF
    www.motorcityforums.com
    2011 Cruze Eco
    1988 Pontiac Trans Am GTA http://www.fquick.com/garages/viewvehicle.php?id=9723
    In the recent past:
    2002 Trans Am WS6 346CI of unbridled fury! 469RWH/434RWTQ 11.01 @ 123MPH You will be missed!
    2005 Subaru Legacy GT 309WHP/357RWTQ 12.21 @ 113
    2000 Subaru Impreza RS 203WHP/201WTQ 14.2 @ 103


  11. #120
    Handbrake Released SeanM402's Avatar
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    Quote Originally Posted by Gunrunr View Post
    My Eco is a M/T model so it has to have the smaller tanks either way. I'm just wondering if anyone else uses the app and if their numbers are off also. If a Cruze owner with the "larger gas tank" can fill up his car and his OnStar phone app tells him that he is at 100%......then that would explain a lot. That tells me that my tank is in fact larger and that my fill ups are being cut short by some evil means. I am tempted to try to get another gallon in there and see if my fill percent can get over 90% on my app.
    I just filled my car today and the onstar app says "full". I have an LTZ.

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