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Clanking/Knocking/banging sound when turning off car?

3.1K views 21 replies 9 participants last post by  driz  
#1 ·
Ok so far i only heard this twice in the last couple of weeks:

what: Like a rythym Clanking/Knocking/banging sound

When: Immediately after shutting down the car

How long: sound lasts for 5 seconds or so

Where: I'm sitting in my car, and sound is from the front of the car, engine area. Makes me think it's a fan or a belt but because it's not happening all the time I can't tell at this point and can't record the sound.

It's quite possibly be normal and i'm only hearing it now since I got windows open more with the warm weather so didn't hear it before when windows closed.

Wanted to see if you guys heard anything like that before too?
 
#4 ·
4cylinder SE.

just to clarify it's not the metal ticking sound from hot metal cooling down after car shutoff.

anyway yes i will try to record the sound, just have to wait for the next occurrence. Wil. have phone ready to record before i shut off engine.
 
#8 ·
Ok tried it today with hood open.

It's like that sound starting at 5 seconds behind the beeping sound. Can you hear the clanking sound for a couple seconds?



It's more apparent when indoors in my small garage I guess from echoing off the wall.

In this video, it didn't clank as long as the other 2 times i heard it. Belt or fan assembly?


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#10 ·
painfx what trim do you have? The engine normally is a lot quieter when hood is closed. Can't really hear the idling/ injector sounds when inside car.
 
#11 ·
Heres Another video of idling and shut down from the front.

1. Does your engine sound like that too… like knocking?

2. What's that winding sound at the end? I think that's the clanking sound I've been hearing sometimes.


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#12 ·
Ok finally was able to get some help to record the winding sound after shutting off. Doesn't happen all the time. Maybe 3 or 4 times a week. You won't hear it if parked outside or with windows closed. I just happened to hear it once when I was in a small garage and windows open. Here it is, let me know if you've heard it before too on your camry -

 
#14 · (Edited)
It`s still a revolving sound. Something turns but I don`t think the sound comes from the fan.
And the shut down sounded like a vape engine dying, LOL.

Get it to the dealer to deal with it. Take the videos with you.
Check you VIN against the oversize engine pistons recall. Some early cars were touched by this flaw which Toyota promptly addressed.

Good luck!

EDIT: Listen to the sounds through some headphones. It`s grinding metal in there!
 
#15 ·
I took it to the dealer today and was able to replicate it with the technician. He thinks it's a solenoid making the sound, but can't pin point each one until an error code comes on.

Otherwise, the car drives fine, fluid levels good - will have to wait and see if any other related symptoms come up. You can't hear the grinding sound when inside the car. You'd have to stand outside with the hood open to hear it clearly. It also doesn't happen every time...
 
#22 ·
I got an 18 and it sure doesn’t sound like that . Those are some super edumakated[emoji37] mechanics they have there, can’t do [emoji90]without a code. Damn, That’s freaking pathetic beyond words. I’m surprised they didn’t say it’s [emoji2373][emoji1781]NORMAL.
Do yourself a favor go to Autozone or Amazon get yourself a mechanics stethoscope. They’re around $10. Best couple bucks you’ll ever spend and you’ll use it on other things if you got one. I’m surprised Superman your computer infused certified mechanic even knows what it is.[emoji1304]
Only thing you watch with those is not to get parts of you or it onto fans ect and smearing blood all over your engine. Beyond that as you get closer going from casting to casting it’ll get very much different than you’ll here now, LOUD! It’ll lessen as you move away. Stone simple then you can take your idiot by the hand and show him what it is. Then since it’s under warranty you’re stuck with these monkeys fixing it. Check it over when they’re Don after you get it home too. You never know what they left loose or behind.



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#19 · (Edited)
Just to add some flavour to this discussion...
My dealer just overfilled my engine with oil. Don’t trust your dealer, challenge him!
Image


EDIT: Mechanics are using some kind of stethoscopic devices to pinpoint the source of a noise in the engine bay. You can even do it yourself by using a long steel rod placing one of its ends in contact with parts of the engine and the other end near your ear and ask somebody to start/shut off the engine. The steel rod conducts the vibrations which are translated in sounds near the ear.

You definitely need a good, trustful mechanic to diagnose this.


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