Rattling at idle

[poemeup]

So I hit a pothole about 2 weeks ago and noticed a weird rattling type noise coming from what sounds like the passenger side area of my car.
Took a quick little video of the noise and was wondering if anyone has experienced this noise before?
Before hitting the pothole it never made that noise.
Even took it to a shop to get it checked out because I suspected that the wheel bearing might have been bad but they told me that everything sounded normal to them..


https://youtube.com/shorts/Ezk_eHcbiis?feature=share

[Ilya]

I'd check your heatshields, etc. first and foremost.

[poemeup]

i've checked my catalytic converter heat shields cuz I've had a rattling problem like this in the past so i zip tied those up and they still in tact. I even turned on the car and held the heat shields on the cats and it was still making noise. any other heat shields in that area that I should check out?

[Ilya]

There is shields that go all the way up the pipe I thought.

So you held the shields and got under the car? Are you able to pinpoint exactly where the noise is coming from (which area) cause in the video you move the camera too much to be certain.

[poemeup]

Yeah, i had the car jacked up and did a quick check and put pressure on my one loose heat shield with the zip ties to see if the noise would stop and it didn't. When I get a chance I'll have to lift it up again and give a more thorough check since I was pressed for time at that moment. To me it sounds like its coming from passenger wheel area. I even opened up the hood while the car was on and the noise was very faint from up there. It's more noticeable from underneath and by the wheel. Unfortunately I haven't had time to be able to check it out again but will try following the pipe from the cats up and see if there is anything else loose. I just wasn't sure if it was something more critical than heat shield rattle.

[midnightclub619]

is the rattle constant or when you are on the throttle? if so, any specific RPM's the rattle is louder?

from my experience with rattles, outside of all the head shields, you can get a mechanics stethoscope and listen to each Catalytic Converter to see if maybe the honeycomb inside got dislodged from it's internal frame. I've had to replace my CC twice due to my car being lowered and tall speed bumps.

[poemeup]

constant rattle while in idle. im thinking that the cats honeycombs are done. took another video today after changing the oil and from the sound of it, it has that rocks in a tin can type sound, but i could be wrong i hope

https://www.youtube.com/watch?v=C-etfXTL2j8

[midnightclub619]

Oh. That doesn't sound like a heat shield to me. I would definitely get a stethoscope and check everything individually to see if u can pinpoint that rattle/knocking. It could be the CC honeycombs. I would start there.

[poemeup]

Oh. That doesn't sound like a heat shield to me. I would definitely get a stethoscope and check everything individually to see if u can pinpoint that rattle/knocking. It could be the CC honeycombs. I would start there.

yeah i feel like most likely it would be the issue. i've had the p0430 code for a while now and it now looks like i might be paying for that soon. did you replace your cats recently? i see you stay in cali too and for cats i know its gotta be oem for us

[Ilya]

Oh. That doesn't sound like a heat shield to me. I would definitely get a stethoscope and check everything individually to see if u can pinpoint that rattle/knocking. It could be the CC honeycombs. I would start there.

yeah i feel like most likely it would be the issue. i've had the p0430 code for a while now and it now looks like i might be paying for that soon. did you replace your cats recently? i see you stay in cali too and for cats i know its gotta be oem for us

Ahh, P0430 is detail we should have had . 100% agree this is your cat then.

[midnightclub619]

Oh. That doesn't sound like a heat shield to me. I would definitely get a stethoscope and check everything individually to see if u can pinpoint that rattle/knocking. It could be the CC honeycombs. I would start there.

yeah i feel like most likely it would be the issue. i've had the p0430 code for a while now and it now looks like i might be paying for that soon. did you replace your cats recently? i see you stay in cali too and for cats i know its gotta be oem for us

Yeah, the cat needs to be OEM. I get mine from salvage yards in CA that have Infiniti vehicles or eBay. much cheaper than the dealership and always have passed smog when I've had to test.