Rattling sound from the engine

[jimtash]

I have this rattling sound coming from motor that's been present for a while now and I'm trying to figure out where it's coming from. The problem here is it's hard to detect when the hood is open but I know for sure it's there. It usually happens at take off and then disappears as the revs increase. I've also isolated it to the front part of the engine and I'm pretty sure it's external. Any ideas here?

 

[rubydist]

Can you post a sound clip?

 

[AREA 91]

I have this rattling sound coming from motor that's been present for a while now and I'm trying to figure out where it's coming from. The problem here is it's hard to detect when the hood is open but I know for sure it's there. It usually happens at take off and then disappears as the revs increase. I've also isolated it to the front part of the engine and I'm pretty sure it's external. Any ideas here?

Pull the accessory belt(s) off and run the car again. This will tell you if its an accessory or not.

 

[jonmon6691]

Just a shot in the dark, but I had a rattling sound that turned out to be a broken up element inside a catalytic converter. Here's a video of what my noise sounded like:

http://www.youtube.com/watch?v=4eCmrBJtkz4&feature=channel_page

 

[Vnuk1]

I'm gonna go with Catalytic Converter Shields on this one.

 

[mike25]

i had the same problem it was my catalytic converter shield the weld broke loose and it made a loud rattle.

 

[jimtash]

i had the same problem it was my catalytic converter shield the weld broke loose and it made a loud rattle.

I replaced the Y-pipe with a Magnaflow a while back so I really can't say for sure. I looked at them and the shields seem to be on there tight.

 

[cetroutt]

X's 2 or 3 on the cat.

 

[stlgreensho]

The sheild may still be loose. A cheap fix is taking a hose clamp and putting it around the shield on both sides and back.

Worked for me.