I've got a strange rattle noise at the rear valve cover. it sounds like a rattle and it gets louder when i accelerate. on closer inspection i can hear what sounds like a plunger noise at idle and part throttle when i put my ear right near the rear valve cover.

i'm going to take the rear valve cover off and see if i can see anything. but does any one else have any ideas on what this could be?

 

What do you mean a plunger noise?

Done any work in the area recently?

 

nothing recently. and imagine a plunger in a toilet, similar to that except without a "slosh" noise..

its somewhat hard to explain.

 

Vid?

 

nvm. it was an EGR valve exhaust leak