What is this noise? Engine Rattling (1 Viewer)

[Blue103]

LX470 Engine Noise

As the title states, can anyone easily identify the problem with the noise? I tried turning the fan by hand with the belt still on and it moves smooth as butter. I have no idea where to really start.

 

[GerLC100]

Uupps. Just seeing the video ;-D

That's a very wide description and likely the reason responses are limited

Are you sure it's from the engine bay?
Does it happen with engine warm/ cold?
Is it always or only in specific situations?
Can you pinpoint right/left?
Did you lay under the car to locate it?
Can you shake the car and recreate it?
...?!?!?

With the engine running and the noise always being on you should be able to further find a location/ area when the hood is open.

And there should also be quite some noise/ rattling threads here to check and go through.

 

[Blue103]

Uupps. Just seeing the video ;-D

That's a very wide description and likely the reason responses are limited

Are you sure it's from the engine bay?
Does it happen with engine warm/ cold?
Is it always or only in specific situations?
Can you pinpoint right/left?
Did you lay under the car to locate it?
Can you shake the car and recreate it?
...?!?!?

With the engine running and the noise always being on you should be able to further find a location/ area when the hood is open.

And there should also be quite some noise/ rattling threads here to check and go through.

Yeah, I don't know how to embed the video in the post but I'll try.

 

[Blue103]

 

[Jdfern]

I would remove the serpentine belt, start the engine and listen (let it run for less than a minute). This may help you narrow down / rule out the source of the noise.

 

[2001LC]

Most common is drive belt idler puller bearing and or tensioner pulley bearing,
But can be:
Fan bracket bearing.
Alternator bearing.
Vane pump.
AC compressor
T-belt #1 or #2 pulley
Water pump.

 

[Blue103]

Most common is drive belt idler puller bearing and or tensioner pulley bearing,
But can be:
Fan bracket bearing.
Alternator bearing.
Vane pump.
AC compressor
T-belt #1 or #2 pulley
Water pump.

This was really helpful! I'm going to first try the easy stuff. The ilder pulley and the tensioner pulley. I had the timing and water pump done less than 15K miles ago so I'm hoping to rule that out. If they did a bad job I'd know it by now. Thanks!