Slight rattle on cold start 04 4.6l

[John2v]

Hey guys just wanted to ask around before I go making massive repairs, I've heard this slight 1-2 second rattle is pretty normal for these 2v engines. Just curious if that's true or if I should just bite the bullet and do a timing kit. When I say slight I mean did you weren't listening for it you'd never notice.

 

[RAU03MACH]

A lot of start up noise is normal
Until the engine worms up
Oil is still in the bottom pan on start up

 

[96blak54]

Bled down lashers, noisy valvetrain, its ok

 

[cobrajeff96]

Could just be the tensioners and/or chains need replacing. The tensioners are oil fed after all, and the quick rattle before pressure builds is a normal and tolerable symptom of an age-related problem. Depends on how many total miles the engine has as well as the owner's time and money budget.

 

[SnakeBit!]

the notorious death rattle. yep, normal. never did seem like it should be though.

 

[96blak54]

Where you located in Kentucky?

 

[Mustang5L5]

A lot of engines will do a slight, momentary rattle on cold start when they have not been started in a while. Takes a second or so for oil pressure to build and start flowing.

But there is a thing such as excessive cold start rattle. F150 3.5L phasers for example.

 

[Flade]

Ford changed to specified oil to help with this. If it is high mileage probably needs need chains and tensioners