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post #1 of 8 Old 08-21-2011, 05:50 PM Thread Starter
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Angry turbo quit whistling

The other day my turbo just stopped whistling when i would go wot. Before this it would whistle really loud in the cab Now it sounds like its sucking a bunch of air. I can only build about 22 pounds of boost. I am running an sct with custom tunes and was thinking that i would be able to build more boost than that on extreme race. I checked all the ic tubes and they all are tight and checked the down pipe and all looks good. Any ideas?

04 f-250 crew cab xlt
5 inch turbo back
zoodad mod
foil delete
egr? what egr? O that thing i threw it in the recycling bin. See im still green
full bumper replacement
head studs coming soon
ride rite bags and flip over ball
hankook mt's 285's
SCT X3
custom tuned by innovative
edge insight cs
sinister coolant filter
blue spring mod
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post #2 of 8 Old 08-21-2011, 06:30 PM Thread Starter
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04 f-250 crew cab xlt
5 inch turbo back
zoodad mod
foil delete
egr? what egr? O that thing i threw it in the recycling bin. See im still green
full bumper replacement
head studs coming soon
ride rite bags and flip over ball
hankook mt's 285's
SCT X3
custom tuned by innovative
edge insight cs
sinister coolant filter
blue spring mod
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post #3 of 8 Old 08-21-2011, 06:49 PM
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Check you y-pipe bellows for carbon or leaks.

06 F-250 4X4
08 rear bumper and taillights,
Shaeffers 9000 5w40 don't use in your 6.0
GOGO direct solenoid, 08 tranny pan and filter
Edge CTS w/EGT probe.ARP 4" silverline,
fuel pressure reg upgrade, coolant filter, pre-pump spin on fuel filter, ELC,Oil bypass
SCT custom tunes by Vivian@QT and Matt @GH
4440 Front, 3040 rear, 7480 gross. VXCF4
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post #4 of 8 Old 08-21-2011, 07:05 PM Thread Starter
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thanks man. i didnt even think of that.

04 f-250 crew cab xlt
5 inch turbo back
zoodad mod
foil delete
egr? what egr? O that thing i threw it in the recycling bin. See im still green
full bumper replacement
head studs coming soon
ride rite bags and flip over ball
hankook mt's 285's
SCT X3
custom tuned by innovative
edge insight cs
sinister coolant filter
blue spring mod
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post #5 of 8 Old 08-21-2011, 07:06 PM
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My buddy was losing boost and it had more lag than usual, we pulled it out and cleaned up the vanes in it... It made a big difference.
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post #6 of 8 Old 08-21-2011, 07:22 PM Thread Starter
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I've cleaned it about 6 months ago. This seems different than a dirty turbo.

04 f-250 crew cab xlt
5 inch turbo back
zoodad mod
foil delete
egr? what egr? O that thing i threw it in the recycling bin. See im still green
full bumper replacement
head studs coming soon
ride rite bags and flip over ball
hankook mt's 285's
SCT X3
custom tuned by innovative
edge insight cs
sinister coolant filter
blue spring mod
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post #7 of 8 Old 08-21-2011, 07:38 PM Thread Starter
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Another problem I have been having is that when I start the truck it takes a long time for the Turbo to kick in. Sometimes I can drive a couple of miles before it will even start to work. Could it be the vgt solenoid not working? It still does it even after a fresh cleaning.

04 f-250 crew cab xlt
5 inch turbo back
zoodad mod
foil delete
egr? what egr? O that thing i threw it in the recycling bin. See im still green
full bumper replacement
head studs coming soon
ride rite bags and flip over ball
hankook mt's 285's
SCT X3
custom tuned by innovative
edge insight cs
sinister coolant filter
blue spring mod
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post #8 of 8 Old 08-21-2011, 08:22 PM
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dont you notice a crap load of smoke when the turbo dont kick in. mine would do that sometimes and would smoke crazy until the turbo lit but would usually kick in as i got into the throttle, would never go a couple miles, let alone about 10 feet without kicking in. i would check the vgt solenoid

T-rav
2010 F350 6.4- H&S Single turbo kit, 5" flo pro,No limit SS cold side kit, No Limit intake, MPD billet CCV/oil filler, newton leveling kit, RED Newton traction bars, custom projector retrofit in oem lights and a bunch of LED lights LOL

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