Turbo waffle - Ford Powerstroke Diesel Forum
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post #1 of 11 Old 05-28-2014, 11:49 AM Thread Starter
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Turbo waffle

Has anyone had the low rpm turbo/waste gate waffle on a deleted 6.7? Is a there a fix for it?

2012 f250 deleted
2010 f450 deleted
2000 hummer h1 stock
1996 hummer h1 4" straight pipe
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post #2 of 11 Old 05-28-2014, 03:35 PM
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Does it kind of sound like a woosh/screech/cough noise that comes after you give it a good revv?
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post #3 of 11 Old 05-28-2014, 03:42 PM
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^^^^love that sound
Fubar likes this.

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post #4 of 11 Old 05-28-2014, 05:20 PM Thread Starter
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No it's not the turbo out the exhaust it only happens when the transmission lets the engine lug going up a slight grade it's a whooshing sound from the air box I'm not sure exactly where it comes from I've unplugged the vaccume line from the waste gate and it's not the culprit. I've been deleted 22,000 miles as it's done it since day one! But I sure do love the sound of the turbo!

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2000 hummer h1 stock
1996 hummer h1 4" straight pipe
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post #5 of 11 Old 05-28-2014, 06:28 PM
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Yes, I love the turbo sound also. I can't seem to figure out what "waffle" sound you're talking about. I thought you were talking about the wastegate screech/cough.
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post #6 of 11 Old 05-28-2014, 06:46 PM Thread Starter
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I guess the best way to describe it it's almost like a thumping coming from the air box area and I'm sure it due to pressure created between the sequential wheels of the turbo more than likely it's cause by thinner air due to elevation differences. I'm at 5400' above sea level there has been some threads on the issue but I haven't found any fixes. Maybe just aftermarket turbo and let her eat!

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post #7 of 11 Old 05-28-2014, 07:10 PM
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Oh I see. I'm at sea level, so probably haven't experienced it. There's nothing wrong with an aftermarket turbo though! Haha.
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post #8 of 11 Old 05-28-2014, 08:47 PM Thread Starter
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That's kinda what I'm thinking! We shall see I reckon. I got a trip to mineral wells tx here in a few days I will see how it acts down there.

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post #9 of 11 Old 05-28-2014, 09:04 PM
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Quote:
Originally Posted by Zooky View Post
No it's not the turbo out the exhaust it only happens when the transmission lets the engine lug going up a slight grade it's a whooshing sound from the air box I'm not sure exactly where it comes from I've unplugged the vaccume line from the waste gate and it's not the culprit. I've been deleted 22,000 miles as it's done it since day one! But I sure do love the sound of the turbo!
I get same thing every once in awhile. Only happens when truck is lugging in high gear under load. Goes away as soon as truck downshifts. Sounds as if turbo is starving for air.

Does same thing when power braking with throttle and brake then letting off throttle.

Forgot to mention I am at 4500 ft elevation
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post #10 of 11 Old 05-29-2014, 04:39 AM Thread Starter
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I sure wish ford would lower the shift points a tad sooner and then the engine wouldn't lug and i wouldn't be whining lol but i reckon i can live with it cause i do love my truck!
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2012 f250 deleted
2010 f450 deleted
2000 hummer h1 stock
1996 hummer h1 4" straight pipe
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