Strange noise when i start my car after not starting for about 10 hours. It can be hot or cold outside, it will still make noise as long as its been overnight without starting...I thought it was a bearing in the alternator area, so i replaced my alternator bearing, but noise is still there...What else could this be...it seems like its coming from the pulley side. It only lasts about 10 seconds or so. When i start it, the noise doesn't come for about 5 seconds, then it starts and continues for about 10 seconds. Then its gone for the day...It pisses me off i want to find it. Is it a bearing somewhere ? could it be from the pulley? thanks for any opinions!

Here is the video! The noise starts at 13 seconds and ends around 30 seconds....bizarre
http://www.youtube.com/watch?v=xg5cAOKVo70

 

try starting it w/o the belt on there?

 

You can't really tell where it clicking from your video. By the time you get there the clicking ends. to me it sounds like a normal valve tick on start up.

 

not talking about the valve tick...start listen at 13 seconds...the sound ends at about 30 seconds...and those arnt the valves ticking, its my lost motion assembly...

 

I hear it. It sounds like a gremlin at first lol. Have you tried adjusting the belt tension on the alternator? Or replaced the alternator belt? Timing belt noise is usually louder, whinier than that. Good luck, I have an intermittent rattle in my engine bay I've been chasing for months.

 

The alternator was jsut changed so the belt was as well...Dont even know where to start anymore really...

 

Sounds like a bearing to me. Even though it is a new alt it could be defective. try starting without belt to eliminate it. If it is not that it could be water pump bearing.

 

what about the pulley bearing?

 

Maybe the water pump do you know if it was ever changed?

 

When i got my motor swap 3 years ago i supposedly got it changed...havent put too much miles on it in 3 years since i never winter drive it...What other bearing can it be...what about idler pulley bearing?

 

Any bearing in that area is possible. Has it gotten worse since you first heard the noise?

 

Sounds like something rubbing. But definately disconnect belts and see if the noise is still there.

 

yes at first it was only for a second, now it goes for longer....il try disconnecting the alternator belt...the only annoying thing is i have to wait overnight for the noise to come back, if i drive it once, the noise is gone for the day....strange

 

what are my options for bearings in that area? i already did the alternator bearing. what else could it be, something under the cover right? near the water pump?

 

Timing belt tensioner, they usually change that when the water pump is replaced.
Take the cover off and start it, it's not to hard to change.

 

that may be an option...i might as well do everything while im in there! thanks we will see what happens after that!

 

Good luck

 

GOT THE NOISE FIXED! it was the idler tensioner! easy fix got it done for free too! thanks for the help guys