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 Post subject: Q??? using alcohol (flex fuel) in 2006 4.7L V8
PostPosted: Fri Dec 30, 2011 11:35 am 
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Joined: Tue Dec 23, 2008 6:44 pm
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Location: Monroe Virginia
I just read about the Jeep 4.7L V8 from 2007 on being flex fuel compatible. I would like to know if anyone knows if there is a difference between the 2006 and 2007 engine. We have a 2006 4.7L V8 in our GC Laredo.
Here's a link to "How stuff works" where I saw the information. <http://auto.howstuffworks.com/fuel-efficiency/vehicles/the-consumer-guide-to-e85-vehicles3.htm>
Is the control system different? is there any difference in the fuel system? I've seen add-on electronic gizmos for sale to alter the fuel volume at the injector. Is that all that's needed? or would replacing the 2006 computer with a 2007 or later do the trick? Or, alternatively, is it already alcohol compatible but Jeep hasn't released that information because it wasn't an issue prior to 2007? I guess what I would like to know is, exactly what would be required to make the 2006 version alcohol compatible? :?
Thanks for any help.

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2006 GC Lar 4.7L V8 Stock
2006 CRD Liberty: substitute Provent; SEGR


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 Post subject: Re: Q??? using alcohol (flex fuel) in 2006 4.7L V8
PostPosted: Sat Jan 26, 2013 11:34 pm 
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Joined: Wed Sep 26, 2012 8:33 pm
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Location: Nampa Idaho
It's not as simple as just changing the computer. You will need a lot bigger injectors to push more fuel and also a better fuel pump. Don't be surprised when your fuel gauge stops working as well.

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 Post subject: Re: Q??? using alcohol (flex fuel) in 2006 4.7L V8
PostPosted: Thu Jan 31, 2013 10:07 pm 
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also on alcohol, all of the fuel lines/connectors need to be alcohol comparable

it breaks down some of the older compounds and the bits clog the line.

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stuff
Skeptic quod gratis asseritur, gratis negatur


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