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Old 04-16-2012, 09:04 PM   #1 (permalink)
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5.4 upgrade

Hey Guys, I have a 2000 SD and an ' 04 f 150 w 5.4s, both run well, both are SLOOOW... to return to idle....You blip the gas and they take forever to return to idle. Is this normal ? How do you fix it? A Mustang doesn't do it. An EB dose'nt do it. A chevy 350 dose'nt do it. What gives? I would like to build up a bad ass 5.4, Any sugestions? Thanks.
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Old 04-16-2012, 09:18 PM   #2 (permalink)
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My '01 e-250 with the 5.4 does the same thing.
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Old 04-16-2012, 10:46 PM   #3 (permalink)
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I guess y'all missed the thread from last week. Here ya go:

/forum/ford/1058955-4-6l-2000-f-150-idle-issues.html
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Old 04-16-2012, 10:49 PM   #4 (permalink)
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My mom's F150 with the 5.4 does the same, I dont see any issues with it doing that.
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Old 04-16-2012, 10:59 PM   #5 (permalink)
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All newer fuel injected vehicles idle does that. Its for emission purposes.
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Old 04-17-2012, 12:00 AM   #6 (permalink)
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Pull you iac valve off and make a restrictor plate. I used a aluminum can a couple of times. Basicly use the gasket as a template but on the tb side hole make it 1/4 hole as a starting point. Keep enlarging if you have stalling issues. The 4.6 dohc are horrible with the hanging idle.
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Old 04-17-2012, 06:36 AM   #7 (permalink)
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Thanks for the tips and video link. The f150 4x4 averages about 13.5 mpg..It has a leveling kit and stock size Nitto a/ts on it. Would headers , tuner, air intake and exhaust make a worth while improvement? Any suggestions? It's a daily driver with Raptor dreams.
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Old 04-17-2012, 07:37 AM   #8 (permalink)
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Anyone had any experiance wthe Eldebrock supercharger?
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Old 04-17-2012, 10:36 PM   #9 (permalink)
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stickwith the roushcharger, parts available at the ford dealers for them, probably find a complete used setup too.
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Old 04-18-2012, 06:01 AM   #10 (permalink)
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Cool , Thanks
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Old 04-18-2012, 06:24 AM   #11 (permalink)
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Isnt the roush made by eaton? They make most of the superchargers for factory applications. If the price is right, I would also look at whipple. I don't know if they make one but they make good blowers.
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Old 04-18-2012, 10:16 AM   #12 (permalink)
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I've already blown one spark plug. Aint no way I would add boost to the equation...
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Old 04-18-2012, 11:03 AM   #13 (permalink)
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Quote:
Originally Posted by Dr.Danger View Post
I guess y'all missed the thread from last week. Here ya go:

http://www.pirate4x4.com/forum/showthread.php?t=1058955
Thanks You

Quote:
Originally Posted by micky_blue View Post
Isnt the roush made by eaton? They make most of the superchargers for factory applications. If the price is right, I would also look at whipple. I don't know if they make one but they make good blowers.

Whipples are sick and I want one for the Harley, but for the mud I wanted the reliability of an eaton.

theres a 2.3 and a 3.4l wipple also 2.3 and 2.6l kenny bell, whipple has alot better customer service, and better product in my opinion.

Quote:
Originally Posted by InDaRed2 View Post
I've already blown one spark plug. Aint no way I would add boost to the equation...
preventative maintnace and this can be avoided, Ive ran 14+#'s of boost in my harley for the past 10 years, and it's not to scary of a thing for me.

If your that worried about (not you, anybody) Romeo heads (mustang) are 6 thread and half way through '03 they made 8 thread windsor, mainly for the expy and navigators.

The old school windsor heads of corse that have 4 thread heads, and the most prone to spitting plugs are most common.
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