I have a 97 Acura integra LS and when I start hitting the break (mainly holding the brake at a stop) something in the engine starts to rattle like a peice of metal clancking around. Only happens at the stop and the car must be in drive and in gear. When I shift to neutral, it stops, but once I go back into gear, the rattle will start again. Please any information will help. Thank You.

 

ok first off check to see ig the noise is present when your foot is off brake secondly how is the car in drive and in gear is it a stick or an auto

 

check your clutch if its a standard tranny

 

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yea i was thinking the same thing is it stick or auto

 

Heat shield on the exhaust rusted and loose?

 

SOrry didn't even realize I wrote it like that. Its aan auto and it only happens when my foot is on the brake. It is definitly coming from the engine.

 

As said before, it is probably a heat shield. Have someone sit in the car with their foot on the brake, etc to reproduce the noise. Pop the hood and find the source.

 

I tried that but I cant find where it is coming from. But when I push the front right corner of the valve cover down, the noise stops.

 

Is the valve cover loose?

 

i think if that happens he would have oil leak. i was gonna say something about the tranny but when i read the valve cover part i totally got stumped.

 

If the whole car is vibrating then its your motor mounts (or just one mount)
My friends teg does that. If its just a rattle, check the shield like someone suggested.

 

now that is read it again it does sound like you might have broken a mount the one located in the timing belt area makes a mean rattle at idle when broken the tranny one breaks a lot too. drive the car, put in the the second gear selector thing and drive to like 5000 rpms then let off the gas and see if it rattles. a rattle hear should defenitly have you looking for broken mounts or loose bolts in the frame (crossmember if applicaple, rack and pinion, etc)