I have a small issue with my mustang when i accelerate i get this odd rattling noise it seems to be tied to my gas pedal i cant get the rattling to happen when im not moving i must be moving no matter how fast i go the noise will stop if i am not pressing on the gas also sometimes its not there it seems like i got to be going a bit faster for the rattling to kick in i had a friend tell me it sounds like a bearing noise i had to replace my idler pulley so i thought it was from that but after i got the new one on it still is making that sound it seems like its coming from under my hood towards the back of my engine anyone had this problem?

 

anyone?

 

dayum dude, 15 min posted and already gettin impatient.........

 

well i was looking and all these other people were getting a bunch of views and responses after a few mins so i was like wtf -_-

 

Detonation.... set your timing.

 

how so? this would only happen when im moving not while at a stop? its only happening when my car is moving at a reasonable speed about 35 mph

 

My headers do that. Do you have aftermarket exhaust? Headers could be touching something

 

im not really sure i havent had it all that long im assuming everything is stock tho what exactly is it just something loose or what?

 

Well my headers are hitting my heat shield, so even if it is stock you could check to see if possibly the heat shield is bent. But normally you can put your finger at least between the manifold/header and the heat shield. It's just that the air flowing through the tubes causes it to vibrate and then under excelleration it barely touches something and it makes a terrible rattling

 

ah ok cool ill have to check it out in the morning thank you for identifying something