Engine "whooshing" Sound - Ford Powerstroke Diesel Forum
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post #1 of 13 Old 01-02-2007, 07:17 AM Thread Starter
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Engine "whooshing" Sound

hey guys, a friend of mine just bought a totally stock 2001 7.3, AT, 133k miles. it starts fine, seems to have good power for a stocker, but it has an intermittent "whooshing" or "shushing" sound. when idling cold or when driving it, we can hear a sound similar to if you were to put kitty litter in a steel pan and shake it back and forth. it seems to get a bit better/quieter when hot but will do it intermittently all the time but mostly just under load. any thoughts? have not pulled any codes yet - don't have a scan tool. the sounds does seem to be coming from near the turbo or exhaust. (I think I know what you're going to tell me but wanted to hear your ideas.) thanks.

2002 F-250 7.3PSD, Lariat, 4x4, CC, SB, AT
-ISSPRO Guages (pyro, trans, boost) on pillar
-TW 6 Pos Chip
-4" Magnaflow
-DIY Cooling System Filter
-Custom Built Transmission and 3-disc TC
-ATS Ported Turbo Housing
-CCV Delete
-Donaldson DIY Intake
-AIH Delete
-6.0L Transmission Cooler
-6.0L Intercooler
-Zoodad intake mod
-Pro Comp 2" leveling kit
-Pro Comp Crash Bar
-Firestone Air bags
-full syn blinker fluid
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post #2 of 13 Old 01-02-2007, 07:24 AM
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Engine "whooshing" Sound

I think you are talking about the Turbo. The sound you are describing is most likely the Wastegate releasing the excess boost from the Turbo. I never heard it when idling though. Also if you listen closely when you shut the truck down you can hear the turbo still spining and pushing air when you walk by the exhuast it sounds cool.


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post #3 of 13 Old 01-02-2007, 07:34 AM
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Could also be the exhaust back pressure valve sticking. I was reading that they can stick if they get sooted up.

2002 F-250 4x4 EC, SRW, SB
Auto 93,000 miles
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post #4 of 13 Old 01-02-2007, 07:55 AM
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EBPV sticking...slightly...tell him to really get after it one day...that might blow the carbon out.
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post #5 of 13 Old 01-02-2007, 08:42 AM Thread Starter
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Quote:
Originally Posted by Turbodude View Post
EBPV sticking...slightly...tell him to really get after it one day...that might blow the carbon out.
that's about what we figured. we looked to disconnect it but was too dang cold to mess with it too much. funny how the sound is so intermittent. is very loud at idle when cold. fairly loud in the cab when driving too. can you tell me where the sensor is located? we'll try disconnecting it.
thanks.

2002 F-250 7.3PSD, Lariat, 4x4, CC, SB, AT
-ISSPRO Guages (pyro, trans, boost) on pillar
-TW 6 Pos Chip
-4" Magnaflow
-DIY Cooling System Filter
-Custom Built Transmission and 3-disc TC
-ATS Ported Turbo Housing
-CCV Delete
-Donaldson DIY Intake
-AIH Delete
-6.0L Transmission Cooler
-6.0L Intercooler
-Zoodad intake mod
-Pro Comp 2" leveling kit
-Pro Comp Crash Bar
-Firestone Air bags
-full syn blinker fluid
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post #6 of 13 Old 01-02-2007, 09:45 AM
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Mine does that.

I dont worry about it. It is for helping to warm your truck up in the cold.
post #7 of 13 Old 01-02-2007, 10:38 AM Thread Starter
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Quote:
Originally Posted by Stroketechintraining View Post
I dont worry about it. It is for helping to warm your truck up in the cold.
it's NOT normal for it (EBPV) to back up the exhaust when engine is hot/hauling arse down the road. the valve must be stuck partially closed or the sensor is acting up intermittently. funny thing, power is pretty good for a stock stroker.

2002 F-250 7.3PSD, Lariat, 4x4, CC, SB, AT
-ISSPRO Guages (pyro, trans, boost) on pillar
-TW 6 Pos Chip
-4" Magnaflow
-DIY Cooling System Filter
-Custom Built Transmission and 3-disc TC
-ATS Ported Turbo Housing
-CCV Delete
-Donaldson DIY Intake
-AIH Delete
-6.0L Transmission Cooler
-6.0L Intercooler
-Zoodad intake mod
-Pro Comp 2" leveling kit
-Pro Comp Crash Bar
-Firestone Air bags
-full syn blinker fluid
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post #8 of 13 Old 01-02-2007, 11:21 AM
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yup, my '02 does the same thing when its cold. I bump the throttle and it quits.
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post #9 of 13 Old 02-14-2008, 01:31 PM
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if it's not quitting, could it be a bad torque converter?

Early 99 (7/98) F-350 CC 4X4 AT 7.3L 200K mi - 4" turbo back w/muffler - AFE Stage 2 - PMT1 ECM - DP 40T/DECEL/80E - dual trans coolers - HPX - Fuel CCK - Auto Meter Trans/EGT/Boost - 3.73 - stock tires
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post #10 of 13 Old 02-17-2008, 04:39 PM
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tighten turbo manifold boots and coller tube boots that should do it.
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