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knocking 5.4 not piston slap

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  #16  
Old 10-04-2011, 12:53 PM
TheWhiteBeast
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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!
 
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  #17  
Old 10-04-2011, 05:49 PM
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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.
 
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Old 12-20-2011, 04:06 PM
Bundy34
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Any update on this? I have a very similar noise.
 
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  #19  
Old 12-30-2011, 05:19 PM
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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.
 
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  #20  
Old 12-30-2011, 08:01 PM
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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.
 
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  #21  
Old 12-30-2011, 11:57 PM
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my 5.4 has a very quiet version of this sound
 
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  #22  
Old 12-31-2011, 09:55 AM
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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?
 
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  #23  
Old 02-16-2012, 06:28 AM
dire straits
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Question

Originally Posted by 78fordman View Post
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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  #24  
Old 02-16-2012, 04:08 PM
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i have the same noise but not as bad as that video
Cold Ford 5.4L - YouTube
 
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  #25  
Old 02-16-2012, 09:20 PM
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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.
 
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  #26  
Old 02-16-2012, 09:21 PM
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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
 
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  #27  
Old 02-16-2012, 09:55 PM
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Originally Posted by dire straits View Post
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
 
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  #28  
Old 02-17-2012, 05:37 AM
dire straits
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Thumbs up

Thanks, Fordman
 
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  #29  
Old 02-17-2012, 07:09 AM
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Originally Posted by 96f150 View Post
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.
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.
 
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  #30  
Old 02-17-2012, 07:49 AM
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It was a well known issue since the triton's have been introduced...tolerances of course will vary with castings
 
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