Popping Sound from Under Hood - Ford Powerstroke Diesel Forum
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post #1 of 7 Old 01-23-2013, 08:31 AM Thread Starter
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Popping Sound from Under Hood

Hi All,

I've owned my truck since last May, it's a 2005 F350 FX4 with the 6.0.
Ocassionaly as I lift off of the accelerator, I'll here a "pop" from under the hood. I noticed it last night again so I figured I would post the problem to see if anyone has any ideas. It sounds like it may be coming from the air intake (which is stock). Mods to truck are jsut some guages and an exhaust.

The noise is not constant, just the one time when I lift off of the go pedal.

The truck has 85,000 miles and it is a remanufactured engine that was put in when the truck has about 25k on it. I've had zero other issues with the truck, other than some blue smoke on startup when its cold and fairly porr fule mileage!

Thanks.
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post #2 of 7 Old 01-23-2013, 08:48 AM
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Quote:
Originally Posted by jrod241 View Post
Hi All,

I've owned my truck since last May, it's a 2005 F350 FX4 with the 6.0.
Ocassionaly as I lift off of the accelerator, I'll here a "pop" from under the hood. I noticed it last night again so I figured I would post the problem to see if anyone has any ideas. It sounds like it may be coming from the air intake (which is stock). Mods to truck are jsut some guages and an exhaust.

The noise is not constant, just the one time when I lift off of the go pedal.

The truck has 85,000 miles and it is a remanufactured engine that was put in when the truck has about 25k on it. I've had zero other issues with the truck, other than some blue smoke on startup when its cold and fairly porr fule mileage!

Thanks.
this i have never heard of... is it possible to post a video by any chance?

2007 Ford F250 Lariat 6.0 Powerstroke

mods:
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Sinister Coolant Filter
Swamps 48V FICM with PHP Atlas 40
B&W turnover ball hitch
EGR Delete
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1999 Ford Mustang Cobra 4.6 32V V8
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post #3 of 7 Old 01-23-2013, 04:22 PM
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subscribed. im confused also..

2004 F350 CC LB 4x4 6.0
Pro5R Intake-Atlas40 FICM-Tint-Level Kit-DVD Stereo-EGR Delete-4'' MBRP TURBO BACK- Headgaskets/studs

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post #4 of 7 Old 01-23-2013, 07:31 PM
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Sounds a turbo fart! And i am not being funny.
Gb

2006 F350 lariat 4x4, S&b intake, 4" exhaust, 03 turbo, sinister egr cooler, BPD remote oil cooler, BPD FICM, stc and dummys, diablowsport program, 5" lift, 35's, led fog bar, flatbed welding rig. SOLD. Went the darkside, 2014 ram 3500 daully.
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post #5 of 7 Old 01-24-2013, 04:17 AM Thread Starter
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I need to record it while I'm driving. It's like a muffled pop, pop, pop.
Almost seems like pressure getting pushed back thru the air box.
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post #6 of 7 Old 01-24-2013, 05:46 AM
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Re: Popping Sound from Under Hood

Sounds like turbo fart, maybe your turbo vanes are sticking. When was the last time your turbo was serviced?

Sent from my phone that somebody didn't help me get.

Unfortunately had to Sell my ......2004 KR CC SWB FX4 - Edge insight cts, blue spring upgrade, updated HFCM drain plug, XDP coolant filter, CAT EC-1 rated coolant, Custom Diesel EGR delete, CAT delete, Rotella T6

SEE MY OIL COOLER REPLACEMENT AND EGR DELETE - http://www.powerstroke.org/forum/gen...tml?highlight=
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post #7 of 7 Old 01-24-2013, 07:52 AM
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When you let off gas quickly the turbo can push air back thru the intake, this is a turbo fart. U could check out turbo fart videos on you tube and see it matches your problem. Very common on 6.0s

2006 F350 lariat 4x4, S&b intake, 4" exhaust, 03 turbo, sinister egr cooler, BPD remote oil cooler, BPD FICM, stc and dummys, diablowsport program, 5" lift, 35's, led fog bar, flatbed welding rig. SOLD. Went the darkside, 2014 ram 3500 daully.
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