im getting this knocking sound on cold starts like only if i let the car sit overnight. i think it just started happening after i havent drove my car for about a week, tephra mod is not picking it up no ses flashing and it goes away once i drive and you never hear it again? if i rev the motor i dont really hear it either. car has cams and some other mods. and im pretty sure its not the clutch, engine oil is full.

http://s878.photobucket.com/albums/a...t=f379047b.mp4

 

Bump any ideas ??

 

Anyone? Im kind of worryed

 

Bumpppp

 

you should raise the hood for the video

 

http://i878.photobucket.com/albums/a...p/e9ee0476.mp4


Motor has 71,xxx in pretty scared it goes away once warmed

 

and you said it doesn't increase with throttle?as in the noise doesn't get faster when the motor gets faster?

 

No it dosent increase its weird it just happens the goes away it sounds like clunk clunk clunk, as soon as i move and drive its gone

 

sounds basically like normal valve train noise to me.

buy a mechanics stethoscope and listen all around.

 

bumppppppppppp

 

Sound may be coming from the cam gears i put my ear up to it and its loud there, and i started the car today and it wasent that bad today after giving it a good drive last night lol

 

sounds like piston slap to me

 

Is it bad?? It wasent loud today when i started my car and it seems to be coming from the cam gear area

 

Check fluids, check compression, Check everything then recheck it. That sounds like a ford powerstroke knock. Also, try taking it to a performance shop and see what they think. Videos dont do problems justice like in person will. Don't beat on it too hard

 

All the fluids are good, i just changed plugs, pcv, and lifters not to long ago and did a compression test, everything was good, and i barely drive the car. Like i said it quieted down today maybe piston slap like everyones saying