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Difference Between 2008 and 2009 5.4

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Old 03-24-2015, 11:35 PM   #1
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Default Difference Between 2008 and 2009 5.4

Ive been trying to find out what changes were made all i can find is they changed where they are being built from the US to Canada at the Windsor plant but when i search for upgrades the 2009 and 2010 5.4 motors are in there own category and not with the 2004 to 2008 5.4 any help would be great i just bought the truck
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Old 03-25-2015, 11:19 AM   #2
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Info' glimmered from their respective order guides and sales brochures ...
  • power
    • 2008 - 300HP / 365FtLb
    • 2009 - 320HP / 390FtLb *E85 capable
  • transmission
    • 2008 - 4spd OD
    • 2009 - 6spd
  • 2009 - 155amp alternator standard
Ya I know ... Not much help.
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Old 03-25-2015, 08:25 PM   #3
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Thanks for the info I can't find much
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Old 03-25-2015, 08:37 PM   #4
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Ford changed the spark plug design in 09. I think it was actually in late 08 but for sure in 09. If the coils have brown boots the plugs will come out easy without breaking.
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Old 03-25-2015, 11:14 PM   #5
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My 09 plugs were very easy to change at very high mileage, it's a 4.6 3v but exhaust manifolds etc are the same.

Cam phasers were an issue in earlier 5.4's , and plugs up to 08 could be a pain, have changed a few. Electrodes snap off and you can need to use a special tool to remove plug.

I like the 6 speed for gas mileage. Have driven the 4speed 5.4 and I like the 6 speed better.
Better reliability if you do the research, program changes fixed the funky shifting.
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Old 03-25-2015, 11:38 PM   #6
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right on is the 320 hp rating only for if you use e85 ? I'm looking to get a tuner from 5 star i just went on a trip of about 1500 miles and only got 16mpg but i was going 80 so i figured might as well chip it and run the 91 octane tune looking for a good intake too 5 star has a kit with the tuner and intake but its a bit spendy
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Old 03-25-2015, 11:45 PM   #7
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Quote:
Originally Posted by Randocommando View Post
right on is the 320 hp rating only for if you use e85 ? I'm looking to get a tuner from 5 star i just went on a trip of about 1500 miles and only got 16mpg but i was going 80 so i figured might as well chip it and run the 91 octane tune looking for a good intake too 5 star has a kit with the tuner and intake but its a bit spendy
No. 320hp was on regular to e10. The higher TQ number comes only from E85.

A good read (from PHP):

http://www.f150online.com/forums/200...highlight=2009

In other words - don't bother with an intake.

BTW - kinda pointless to be discussing mileage if you keep wanting to run @ 80 mph - not gonna happen the aeros will kill you. NO programmer guarantees any mileage gains. Be prepared to be disappointed if yer expecting any.

MGD

Last edited by MGD; 03-25-2015 at 11:48 PM.
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Old 03-26-2015, 12:19 AM   #8
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im not worried about mpg it was my first trip with the truck just figured if i would get 16 might as well enjoy the extra power from the tuner thanks for the link to the article found it helpful
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