zashton26

hey just have a quick question for anyone. does anyone know what could cause a rattling noise? so far its none of the following ive had each done to see if they were the cause... new sparkplugs and ignition coils , new serpintine belts, new air filter... anyone who has an ideai would appreciate it

Pothole987

rattling like metal on metal? i would guess a heat shield is loose.

zashton26

Ive checked the heat shield and its fine it only happens every once in a while.... someone said it could be the timing belt but idk

Pothole987

the timing belt is rubber so it wont be rattling. its hard to tell you anything without seeing it. just start the car up, let it run and try different things like steering left right, ac on and off.


theres more than the one heat shield on the car too. i think theres 3?

techtalk

zashton,

Which heat shield have you checked out? If the rattling sound is originating from the engine bay then I would hasten to surmise that your exhaust manifold cover is loose. (or it may even have an exhaust leak- I'd check for that as well because this can cause a "tapping/rattling" sound at idle and low rpms) I would also check to see if the two covers directly underneath the exhaust manifold cover (ref # 5 and 6 in this Civic exhaust manifold diagram)are loose.



Good luck tracking down the source of the rattling sound- nothing boils my oil more than an incessant rattling noise!

K24_Y61P

Its either one of the eighteenmillion heat shields or your tires. My bet is a heat shield. Crawl back under and check them all from the header (yes header not headers) all the way to the exhaust tip.

toyomatt84

iTrader: (1)

Does it happen while driving primarily? Is there a clunking feeling combined with it?

zashton26

thanks ill check those spots out.... toyomatt84 its normally at idle when i here it

roach4201986

when is the last time you changed the oil??? are you sure its not a rod knock??... loose motor mount?? maybe??

toyomatt84

iTrader: (1)

Have you inspected your engine mounts? They could be worn.