03 turbo going quiet?? - Ford Powerstroke Diesel Forum
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post #1 of 14 Old 08-22-2013, 07:38 AM Thread Starter
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03 turbo going quiet??

What would cause a turbo that is producing great boost (25 @ 6000') dosnt seem to have any leaks but, it just dosnt sound as loud as when I first installed it. Ecspecially at idle. Is this possible? What would cause this?

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post #2 of 14 Old 08-22-2013, 07:40 AM
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Maybe you are getting used to it? maybe load the stock tune and switch back?

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AirRaid Filter, 6 inch Pro Comp Lift. 17 inch Mikey Thompsons with 35 inch Nittos, sinister coolant filter, MBRP 4" straight pipe, 6K HID, Zoodad, SCT with tunes from Vivian (Looney and Looney fuel) and Tony, dashboss with EGT and FP, 08' tail lights, blue spring, lowes CCV mod, 03' turbo

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post #3 of 14 Old 08-22-2013, 07:45 AM Thread Starter
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I might be...truck not tuned yet

BPD OIL COOLER W/COLD WEATHER PACK & BPD oil bypass amsiol filter
BPD WATER PUMP, RADIATOR+ EGR.ARP STUDS
,edge turbo timer
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post #4 of 14 Old 08-22-2013, 09:04 AM
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Quote:
Originally Posted by kinnisoj View Post
I might be...truck not tuned yet
What's that like?

05 F-250 Crew Cab Short Bed
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post #5 of 14 Old 08-22-2013, 09:36 AM
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old age = loss of hearing

Brian

early 2004 F250 CC SB Lariat FX4
* with BPD Oil Cooler/cold weather pack * BPD EGR Cooler * Scangauge II * Blue spring update * Blue wire fan mod *
* Rotella T6 w/ Archoil 9100 * 4" catback exhaust w/5" tip
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* 63,5xx miles *


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post #6 of 14 Old 08-22-2013, 01:37 PM Thread Starter
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I wont argue that Im getting old... but the turbo at idle just dosnt sing like it did.

BPD OIL COOLER W/COLD WEATHER PACK & BPD oil bypass amsiol filter
BPD WATER PUMP, RADIATOR+ EGR.ARP STUDS
,edge turbo timer
5" TB DIAMOND EYE EXH
ATLAS 40
TITLE IN HAND...
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post #7 of 14 Old 08-22-2013, 02:11 PM
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Maybe the vanes are stuck so it's not cycling while idling. Mine will cycle between 15% and 85% most of the time and sometimes it will just sit at 67% and be happy there.

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post #8 of 14 Old 08-22-2013, 02:40 PM
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The turbo could be stuck in the perfect spot. Believe me, it happens. I recently cleaned a turbo in a 6-speed truck that definitely had a negative affect on performance. It's really hard to explain to a customer that their truck runs worse now after I "fixed" it.


The whistle at idle is caused by the vanes being all the way closed creating the most backpressure and it needs the highest VGT duty cycle to do that.

-Matt

Ford Senior Master Tech

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post #9 of 14 Old 08-22-2013, 03:47 PM
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I think my hearing got a little worse too because im getting proper vgt% and it just doesnt seem as loud anymore haha no one else thinks that though

2004 F350 CCLB 4x4: Sinister Race solutions kit, CAT ELC Edge CS, SCT SF3, PHP Ficm programmer, Procomp, Rough country, and Nitto goodies. SOLD

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post #10 of 14 Old 08-22-2013, 04:20 PM Thread Starter
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Ok if I remember correctly I saw the vgt% on my Edge CTS. What should it read?

BPD OIL COOLER W/COLD WEATHER PACK & BPD oil bypass amsiol filter
BPD WATER PUMP, RADIATOR+ EGR.ARP STUDS
,edge turbo timer
5" TB DIAMOND EYE EXH
ATLAS 40
TITLE IN HAND...
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