knocking 5.4 not piston slap

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Oct 4, 2011 | 12:53 PM

#16

TheWhiteBeast

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Joined: Nov 2009

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As mentioned before it can be A. Worn out chain guides/tensioners or B. When spark plugs are getting ready to blow out or have become loose, the compression getting past the spark plug will make a ticking sound. Make sure all of your spark plugs are torqued to factory specs. Blow outs are NO FUN!

Oct 4, 2011 | 05:49 PM

#17

vaper

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Joined: Aug 2011

Posts: 544

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Thanks for all the suggestions,I to fordman am pulling the front cover next.If new chains, guides and tensioners don't do it,off comes the oil pan.
Just put in a fresh set of plugs a month ago and had them out again when I did the lash adjusters (didn't want to drop a valve).
Good luck fordman let us know how it went.

Dec 20, 2011 | 04:06 PM

#18

Bundy34

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Joined: Dec 2011

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From: Hampton Roads

Any update on this? I have a very similar noise.

Dec 30, 2011 | 05:19 PM

#19

vaper

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Joined: Aug 2011

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I haven't gone any further than a set of lash adjusters yet.I really think I have a lot better throttle response since the change.
I am curious as well how 78fordman made out with this.

Dec 30, 2011 | 08:01 PM

#20

78fordman

Thread Starter

Cargo Master

Joined: Oct 2003

Posts: 2,833

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From: Jefferson, Iowa

actually i traded it off for a e-250. I mentioned it to the salesmen and he said they all do it ??? My 02 e-250 has a 5.4 and sounds nothing like my 00 did.

Dec 30, 2011 | 11:57 PM

#21

Hotpocket

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Joined: Nov 2010

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From: Needville, TX

my 5.4 has a very quiet version of this sound

Dec 31, 2011 | 09:55 AM

#22

vaper

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Mine started out as a faint noise about 20,000 kms ago Hotpocket.
Did you get a fair dollar for the trade in Fordman?

Feb 16, 2012 | 06:28 AM

#23

dire straits

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Joined: Jan 2012

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Quote:

Originally Posted by 78fordman

mine is only at 1000rpm and under. While driving down to road or even reved up with no load it is quite. I have no codes but i am going to get a couple of tensioners and guides and see if it is some chain noise.

Fordman did the tensioners and guides fix the noise? I have the exact syptoms in my 04 5.4L 2v.

Dave

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Feb 16, 2012 | 04:08 PM

#24

acf6

Post Fiend

Joined: Aug 2010

Posts: 13,710

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From: Manchester, CT

i have the same noise but not as bad as that video
Cold Ford 5.4L - YouTube

Feb 16, 2012 | 09:20 PM

#25

96f150

Fleet Mechanic

Joined: Nov 2000

Posts: 1,713

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From: In my House

My 01 sounds just like your 2003!! awsome footage by the way!! mine has done it since I got it used with around 85k on it, I now have 125k on it, I have attributed it to the short piston skirts making the piston slap noise. It goes away once the trcuk is warmed up a bit.

Feb 16, 2012 | 09:21 PM

#26

acf6

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Joined: Aug 2010

Posts: 13,710

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From: Manchester, CT

Yeah I bought mine with 35k and its still doing it at 55k. Went away slightly with Valvoline durablend and when its fully warmed up I don't hear it at all

Feb 16, 2012 | 09:55 PM

#27

fordman67

Hotshot

Joined: Dec 2005

Posts: 14,376

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From: evansville in

Quote:

Originally Posted by dire straits

Fordman did the tensioners and guides fix the noise? I have the exact syptoms in my 04 5.4L 2v.

Dave

U have a complete different horse there.don't get mixed up in this conversation cause your 5:4 is different

Feb 17, 2012 | 05:37 AM

#28

dire straits

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Joined: Jan 2012

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Thanks, Fordman

Feb 17, 2012 | 07:09 AM

#29

Ironhand03

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Joined: Jul 2011

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Quote:

Originally Posted by 96f150

If that was the issue then almost every stock 4.6, 5.4, and 6.8 would have issues since they all use the same pistons.

I will say it can obviously be different things depending on the engine. But a slap noise, I would guess is the chain guides/tensioners. A light tapping noise could be a solid lash adjuster or an injector.