Hissing Noise - Ford Powerstroke Diesel Forum
 
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post #1 of 10 Old 01-15-2009, 05:09 PM Thread Starter
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Hissing Noise

I have done some mods -- including a 4 inch TB exhaust and a DP chip. Now that it is cold out (10 degrees right now) not only can I hear the turbo whine -- but I also hear what I think is the waste-gate hissing -- until it warms up (like 3 or 4 miles of driving). Is this normal? Was this happening before but I just couldn't hear it?

2000 Excursion 7.3 psd
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post #2 of 10 Old 01-15-2009, 05:10 PM
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Thats your EBPV staying shut to warm up your truck. They suck and no one seems to like them!

Project Frankenstein


1997 Ford F-350, Dually conversion, Cobra 29 LX CB, 12000 watt converter, All LED lights, TW tunes, 4" DP, Napa Intake and lots of running lights.

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Thanks. I'll give er a good wackin in the morning.
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post #3 of 10 Old 01-15-2009, 05:10 PM
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Its not the wastegate, you never hear that. What you are hearing is the EBPV, Exhaust Back Pressure Valve. Its a butterfly valve in the exhaust right after the outlet of the turbo that closes when the engine is cold to aid in warmup. Also makes a nice exhaust brake with some wiring.

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2000 F-250, forged rods, 38r turbo, BTS trans, hutch mod, TW tuning and Bad Night Special 50 horse Caterpillar injectors



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Originally Posted by alberta 7.3 View Post
Yeah, I'd probably feel a bit drained after firing twice in rapid succession.
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post #4 of 10 Old 01-15-2009, 05:11 PM
PMR = JUNK

 
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Quote:
Originally Posted by RRonning1984 View Post
Thats your EBPV staying shut to warm up your truck. They suck and no one seems to like them!
I like mine.

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2000 F-250, forged rods, 38r turbo, BTS trans, hutch mod, TW tuning and Bad Night Special 50 horse Caterpillar injectors



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Originally Posted by alberta 7.3 View Post
Yeah, I'd probably feel a bit drained after firing twice in rapid succession.
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post #5 of 10 Old 01-15-2009, 05:13 PM
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Originally Posted by cob32187 View Post
I like mine.
I stand corrected.

Do you have a link or a write up on how to do the exhaust break mod?

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1997 Ford F-350, Dually conversion, Cobra 29 LX CB, 12000 watt converter, All LED lights, TW tunes, 4" DP, Napa Intake and lots of running lights.

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Thanks. I'll give er a good wackin in the morning.
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post #6 of 10 Old 01-15-2009, 05:16 PM
PMR = JUNK

 
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Yeah, i actually drew up a schematic for it. Im not sure if it's in the tech files or not. If you want it i can give you a copy of it though.

BPS President

2000 F-250, forged rods, 38r turbo, BTS trans, hutch mod, TW tuning and Bad Night Special 50 horse Caterpillar injectors



Quote:
Originally Posted by alberta 7.3 View Post
Yeah, I'd probably feel a bit drained after firing twice in rapid succession.
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post #7 of 10 Old 01-16-2009, 02:27 PM
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Quote:
Originally Posted by cob32187 View Post
Yeah, i actually drew up a schematic for it. Im not sure if it's in the tech files or not. If you want it i can give you a copy of it though.
Got a link?
I was looking at the Dfuser kit , they seem to be nice but how well does it work for an exhaust brake? Is the Converterlock required?

~Philip

99 F250 Ext Cab Long Bed. 7.3 4x4 5.5 " Fabtech Lift.
Gooseneck , Straight Pipe, Intake , DP F6 , And other goodies...

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post #8 of 10 Old 01-16-2009, 02:35 PM
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I liked mine till the accuator started to leak.

-Josh
Early 99 F-350 2wd DRW
6 Speed 4.10 rear
4 in turbo back muff delete
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post #9 of 10 Old 01-18-2009, 03:19 PM
PMR = JUNK

 
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Quote:
Originally Posted by Midwestern4x4 View Post
Got a link?
I was looking at the Dfuser kit , they seem to be nice but how well does it work for an exhaust brake? Is the Converterlock required?
Works pretty good. If you don't have tuning that keeps the TC locked when you push the brake, you will need to wire up a lockup switch too.

BPS President

2000 F-250, forged rods, 38r turbo, BTS trans, hutch mod, TW tuning and Bad Night Special 50 horse Caterpillar injectors



Quote:
Originally Posted by alberta 7.3 View Post
Yeah, I'd probably feel a bit drained after firing twice in rapid succession.
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post #10 of 10 Old 01-18-2009, 04:07 PM
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i hated and unpluged my EBPV. i have TB 4" as well...no muff. no res....once it got cold mine would do it..very loud and annoying...there is a small plug right by the turbo..pull it out and tuck it in somewhere out of the way..and then just let the truck warm up a little longer when cold...
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