Valve Knock?? - Ford Powerstroke Diesel Forum
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post #1 of 7 Old 02-04-2013, 09:35 AM Thread Starter
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Valve Knock??

My pickup started making a knocking noise this evening. I shut it off when I got to walmart after I let it cool down and when i got back out, started it up and drove home I noticed a knocking noise. It only does it at idle when you first start it up and slowly fades away, but hwen you rev it up anywhere above idle it knocks. It it coming from the top of the motor as far as I could hear. I don't run my H&S on anything but stock and its only been deleted about 500 miles, only 4,700 miles on the pickup. Any experience with this? it's not the typewriter noise, I've got that too.

2013 GMC Denali: PPEI H&S, Edge, AFE, S&B, Wherli, HSP, DRP, AirDog, Gear Alloy, Toyo
2010 F-350 Lariat: H&S, Flo~Pro, Sinister, S&B
(SOLD)
2012 F-250 KR: H&S, MBRP, Sinister, S&B, 315/60/20 Toyo MT
2008 F250 Job 2: H&S mini, MBRP 5in, S&B, PTP EGR
2009 Dodge: H&S, Flo~Pro, S&B, GDP, Shibby,
2009 LMM: EFI Live(DSP 5), 5in MBRP, EGR blocked
2006 LBZ: MBRP t/b 4in exhaust,PPE Xcellorator,PPE Air Box Mod,Rancho 4in
2007 LMM Z71
2002 LB7: T409 MBRP Duals,Banks CAI,PPE Boost Valve, Hypertech

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post #2 of 7 Old 02-06-2013, 12:48 PM
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post #3 of 7 Old 02-11-2013, 08:08 PM Thread Starter
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Bump......

2013 GMC Denali: PPEI H&S, Edge, AFE, S&B, Wherli, HSP, DRP, AirDog, Gear Alloy, Toyo
2010 F-350 Lariat: H&S, Flo~Pro, Sinister, S&B
(SOLD)
2012 F-250 KR: H&S, MBRP, Sinister, S&B, 315/60/20 Toyo MT
2008 F250 Job 2: H&S mini, MBRP 5in, S&B, PTP EGR
2009 Dodge: H&S, Flo~Pro, S&B, GDP, Shibby,
2009 LMM: EFI Live(DSP 5), 5in MBRP, EGR blocked
2006 LBZ: MBRP t/b 4in exhaust,PPE Xcellorator,PPE Air Box Mod,Rancho 4in
2007 LMM Z71
2002 LB7: T409 MBRP Duals,Banks CAI,PPE Boost Valve, Hypertech
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post #4 of 7 Old 02-12-2013, 08:57 AM
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I saw a video in youtube. (unfortunately I can't find it) when a woman was reviewing the 6.7L and as soon she started to accelerate you can hear the engine knocking. These engines tends to knock a little if the user is hard on the gas pedal.

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2005 Pontiac GTO (1 of 645) (LS2 6.0L, 6 speed manual / 3.46 gear) 39k miles
2007 F-250 XLT (6.0L, 2wd, 6 speed manual / 3.73 gear) 42k miles
2008 F-450 LARIAT (6.4L, 4x4, 6 speed manual / 4.88 gear) 38k miles
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post #5 of 7 Old 02-12-2013, 09:06 AM
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Re: Valve Knock??

I bet its the new fueling strategy

2012 F250 CCSB 6.7 (3.73 gears) H&S Minimaxx (My own tuning), H&S 64mm turbo kit, H&S Dual Fueler, H&S Low Pressure Fuel System, H&S CCV delete, No Limit s2 Intake, PMF 3-link, PMF traction bars, Fox 2.0s, Icon 2.5" coils, Platinum 20s w/ 295/65 toyo at2s, Airlift bags and wireless controller, TFI 50gal, rollX, AMPboards,
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post #6 of 7 Old 02-12-2013, 07:22 PM
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My 2013 starting knocking during idle at startup today also. It's completely stock. It goes away when driving it (or I can't hear it). I will be going back to the dealer in the next couple days to have it checked out.
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post #7 of 7 Old 02-13-2013, 06:40 PM Thread Starter
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Think I found my problem, mine sound's just like this, just not quite as loud but close.

2011 Ford powerstoke F350 BAD CAM SHAFT - YouTube

2013 GMC Denali: PPEI H&S, Edge, AFE, S&B, Wherli, HSP, DRP, AirDog, Gear Alloy, Toyo
2010 F-350 Lariat: H&S, Flo~Pro, Sinister, S&B
(SOLD)
2012 F-250 KR: H&S, MBRP, Sinister, S&B, 315/60/20 Toyo MT
2008 F250 Job 2: H&S mini, MBRP 5in, S&B, PTP EGR
2009 Dodge: H&S, Flo~Pro, S&B, GDP, Shibby,
2009 LMM: EFI Live(DSP 5), 5in MBRP, EGR blocked
2006 LBZ: MBRP t/b 4in exhaust,PPE Xcellorator,PPE Air Box Mod,Rancho 4in
2007 LMM Z71
2002 LB7: T409 MBRP Duals,Banks CAI,PPE Boost Valve, Hypertech
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