Help me figure out what this sound is.

[jweb1369]

Can you tell me what the problem is by hearing the sound? It sounds like it's coming from the driver side. It went away after about 5 more minutes of idling. I had just used some sea foam, so I'm not sure if that was why. I haven't really heard it that loud and clear before.

Here's the video:

http://www.youtube.com/watch?v=vxZCXKYf9dA

 

[jweb1369]

Just read this: http://www.explorerforum.com/forums/showthread.php?t=329416&highlight=air+intake

It is most likely because I cleaned a bunch of stuff such as a super gunked up throttle body, air intake, and the IAC. I also took the silencer thing off of the air intake box.

 

[koda2000]

a little hard to tell listening to it on-line, but to me it sounds like a timing chain "death rattle" or a exhaust header gasket keak.

 

[koda2000]

sorry, that should have said "leak"

 

[yavapaires]

Sounds to me like an exhaust leak. But, like was already posted, it is hard to tell. I HAVE NOT had any experience with the timing chain rattle on the OHC engine. I am thankful to have the OHV engine.

 

[jweb1369]

Thanks for all the input.

I think it might have been the sea foam I had just added at that time. I haven't noticed any sound since. I will keep an eye (or ear) on it.