Sounds like i have a supercharger! - Ford Powerstroke Diesel Forum
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post #1 of 6 Old 10-04-2012, 08:52 AM Thread Starter
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Sounds like i have a supercharger!

My 08 with 118K has a rpm based noise that sounds like it has a loud supercharger. seems to be coming from the turbos....which have been replaced 10K ago.
It sounds nice lol..but i dont thing its normal. is at its loudest when i push the throttle 75%...and with 20-30lbs of boost.
The truck drives absolutely fine.


2008 F450 w/Century 311. DPF/EGR delete. Spartan tuned.
2003 Grand Marquis..some mods...
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post #2 of 6 Old 10-04-2012, 01:43 PM
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Could you post a video of the sound?

08 F350 JOB 1
H&S MINI MAXX HD300 W/S1M
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6000K BEAMERS HID HEAD & FOGLIGHTS
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post #3 of 6 Old 10-04-2012, 04:03 PM
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i know what your talking about. pretty sure thats normal. or atleast every 6.4 i have rode in has done it

2008 f250 ccsb 4x4 lariat.. 8 inch lift, 24in fuel hostage, 40in ss m16, Arp studs, egr delete, street diesel performance down pipe, intake elbow and cac pipe, Diesel site boots, xrt pro with kem tunes, s&b intake, 5 inch exhaust, edge cts, tinted mirror lights, pioneer 8400 double din, hid headlights and fogs, two jl audio 13tw5 with rockford 1500 watt amp, jl audio door speakers and tweeters, prestige 2 way alarm and remote start.

00 f350 lariat 7.3 cc lb. (the worker)
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post #4 of 6 Old 10-05-2012, 04:57 AM
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Does it make the noise when your getting on the throttle and you can hear it again when you let off? Almost like a whine? I just bought a 2010 6.4 and have the same issue interested to see what everyone thinks.
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post #5 of 6 Old 10-05-2012, 06:31 AM Thread Starter
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Guys, when the boost goes up, its a VERY loud whine. i took it to my diesel mechanic that replaced the turbos, and he said its possible i have a leak..


2008 F450 w/Century 311. DPF/EGR delete. Spartan tuned.
2003 Grand Marquis..some mods...
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post #6 of 6 Old 10-05-2012, 08:53 AM
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if it didnt do it before but it does now then its not normal. could be up pipe leake (im just guessing) check for black soot behind the turbos

01/07 Job 1 F350 H&S Tuned. ARP Studs, AFE 4'' straight pipe, EGR delete with elbow, AFE stage 2 CAI, 6'' lift on 37s, 20x12 Fuel Nuts two piece, Sinister coolant filter, CCV Mod, Projector headlights HID kit
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