6.4 noise

blacksnapon · Sep 26, 2007

Folks, I've got one of them there 08 6.4 f350s with a high pitched squeal at high load, and 30 psi boost. Rusty had one a while back with somewhat the same symptoms. I believe its cab pullin' time!

CaFordDude · Sep 26, 2007

A first for you Vince with the new trucks? Should be fun and a great experience. Keep us posted on how easy or hard the repairs are.

blacksnapon · Sep 26, 2007

This noise reminds me of a blower motor going bad, how they squeal. He had to put 2 trailers on the truck before it would make the noise.

Gunner · Sep 26, 2007

Do I need to find a cutting torch? :flames:

Gunner

04Xcursion · Sep 26, 2007

I remember hearing of similar problems on the 6.0... IIRC cracked y-pipes were an issue. Are you thinking a similar problem exists in the 6.4 or do you think it's something more serious?

blacksnapon · Sep 26, 2007

04Xcursion said:
I remember hearing of similar problems on the 6.0... IIRC cracked y-pipes were an issue. Are you thinking a similar problem exists in the 6.4 or do you think it's something more serious?

There is three expansion joints back there, one on each up pipe, and one after the diesel oxidation catalyst. I'm betting its heating up and blowing out of one of them.

Beachbumcook · Sep 26, 2007

Could just be me in my 6.0L with 106,000 miles blowing by the guy!!!

That was me "squeeling" at him as I blew past him!!!

Could be defective spark-plugs???? :rofl:

BIGRED911 · Sep 28, 2007

or could he actualy be hearing the turbos?

blacksnapon · Sep 28, 2007

BIGRED911 said:
or could he actualy be hearing the turbos?

Nope, the noise I heard, ain't natural!

BIGRED911 · Sep 28, 2007

neithers half the noise they make (hold it, what noise?)

6L PWR · Sep 28, 2007

I'd guess he's either throwing it too much NOS or he's using to high a Methanol mix. 'hah'

Rusty Shackleford · Oct 6, 2007

blacksnapon said:
Folks, I've got one of them there 08 6.4 f350s with a high pitched squeal at high load, and 30 psi boost. Rusty had one a while back with somewhat the same symptoms. I believe its cab pullin' time!

I wouldn't pull the cab if it's inlet pipes. Removing the trans. is all that is necessary. I'm doing a high pressure fuel pump and a set of injectors right now with the cab on. Not nearly as bad as rumor has it.

captchas · Oct 7, 2007

my god you guys are making me glad i was able to by back my 03.-7.3 f350 daulie to tow the drag cars with

blacksnapon · Oct 7, 2007

captchas said:
my god you guys are making me glad i was able to by back my 03.-7.3 f350 daulie to tow the drag cars with

Look at cab pulling, not as a requirement, more as an extra choice.

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6.4 noise

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