Ticking sound on throttle...

[Dog bite]

Hi guys wondering what the sound is.

Can only hear it on part throttle when engine is cold during cooler weather...

Is does a tick tick tick coming from engine bay but no ticking at idle.

Any clues? Engine going bad?

4.6 with about 120k
No oil burn, no trouble at start up, etc.

 

[Kilgore Trout]

2V or 4V?

 

[Dog bite]

It's a 2V

 

[Dog bite]

Another thing

I almost forgot.
Another weird thing is that the ticking is not proportional to engine speed...

At first I thought the engine was going bad but then noticed that it wouldn't do it at idle, it does it only under some load. So I thought maybe something in the crank area (bearings) was getting weak and rubbing only under load because of the twist.

Then I noticed that as I would speed up, the ticking interval does not shorten, hence the ticking stays the same as engine speed rises. At a certain speed then I can't here it but I think it's probably because of wind/engine/road noises.

I have no clue.

 

[Kilgore Trout]

Well if the tick speed is unrelated to engine speed it must be the fan clipping agains the shroud or something dangling into the fan blades...

 

[Dog bite]

Wow

No clue, I'll have to check the front end carefully...

I'll have to see if it does it when I slowly rev the engine but standing still in neutral.

 

[forpit2000gt]

it is a ticking or rattling? what year?

 

[Dog bite]

Ticking no rattling.

Car is a 96 GT 4.6 2V.