[AT] GM Flex Fuel vehicles

[David Bruce]

All this is interesting as if I remember correctly my Dodge Ram is E85 
ok without any changes (not read the owner's manual since I've slept so 
this may or may not be true).  I haven't seen any E85 around here anyway.
David
NW NC
I'll bet Charlie is warm (or hiding under the AC)

charlie hill wrote:
> Thanks Steve,
>
> That pretty much answers what I wanted to know.  The next question 
> is:  I wonder if GM could make a conversion kit for their vehicles 
> (since they obviously know the differences between the two versions), 
> do the testing and get it approved for conversion at a GM dealer or 
> something like that.  Much the same way the aftermarket industry gets 
> performance equipment approved maybe.
>
> Charlie
> ----- Original Message ----- From: "Steve W." <falcon at telenet.net>
> To: "Antique tractor email discussion group" 
> <at at lists.antique-tractor.com>
> Sent: Monday, July 31, 2006 10:18 PM
> Subject: Re: [AT] GM Flex Fuel vehicles
>
>
>> Charlie,
>>  There are three major differences in them. One is the gas cap 
>> itself. Besides being Yellow it has a different vent valve in it 
>> because alcohol is hygroscopic so the venting is set up to only vent 
>> pressure. The second is the fuel line assembly. There is a 700.00 
>> flex fuel sensor in the line that tells the computer what the mix in 
>> the tank is. The sensor is the same for all the flex fuel vehicles 
>> made from 2002 and up. The line itself is also made of a different 
>> material. The last change is in the injectors. Since alcohol has less 
>> energy than gasoline they increased the flow rate for the flex 
>> vehicles to accommodate the higher rate of fuel flow.
>>
>> Now for the REAL problem. It is Illegal to convert any unleaded 
>> fueled vehicle to a different fuel unless you have the DOT do a test 
>> on the entire vehicle and can prove that it meets or exceeds the 
>> emissions standards for that vehicle type. That test is about 
>> 10,000.00 to have done. There are NO approved kits or methods out 
>> there to convert a vehicle to E-85 or other fuel. Get caught driving 
>> a converted vehicle and you get to pay a BIG fine for tampering with 
>> the emissions system of the vehicle.
>>
>> http://www.e85fuel.com/e85101/faqs/conversion.php
>>
>>
>>
>>
>> charlie hill wrote:
>>> I have a question for the resident GM experts.
>>>
>>> I have a 2006 GMC sierra pickup.  That same truck and same engine 
>>> are available in a Flex Fuel (E85) version.   I have no plan on 
>>> trying to switch mine but I'm curious about the mechanical 
>>> differences in the two engines. Obviously the computers are set up 
>>> different but does anyone know what else is different about them?
>>>
>>> Seems to me that since GM makes them both ways it should be possible 
>>> to change the gas setup to flex fuel with off the shelf parts.
>>> It would probably cost too much and right now it wouldn't make much 
>>> sense to do it anyway.  I'm just curious about the process.
>>>
>>> Charlie
>>> _______________________________________________
>>> AT mailing list
>>> Remembering Our Friend Cecil Monson 11-4-2005
>>> http://www.antique-tractor.com/mailman/listinfo/at
>>>
>>>
>> _______________________________________________
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>>
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>
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