Constent knock while car is cooling down...?

[SuperSport Ron]

When I park my 2000 SS camaro at night after it being warm, i hear a constent knock its sounds like something is cooling down but im not sure exacly what it could be....does anybody have any idea on what it could be??

[FinZ28]

I'm thinking it's your exhaust. How long does it knock after you shut it off?

[godless-phoenix]

ive heard its because of the aluminum block expanding or contracting when its cooling down after you shut it off...i think i know what sound you're talking about. its almost like it will pop or "knock" a few times when the cars cooling down after its shut off...

[Knight]

I'm thinking it's your exhaust. How long does it knock after you shut it off?

This.

[SuperSport Ron]

ive heard its because of the aluminum block expanding or contracting when its cooling down after you shut it off...i think i know what sound you're talking about. its almost like it will pop or "knock" a few times when the cars cooling down after its shut off...

U know im not to sure how long it knocks for i park in the garage and i just go up into my room once i pull it in....but thats exaclly what it sounds like i could decribe it as the same sound u can make with your tounge u know that popping noise...but ya i'v heard that alum block thing too, i just didnt knock if they were talking about the noise while the car is on or off...

[SuperSport Ron]

but its like clock work it dosent skip a beat

[FinZ28]

Probably the easiest way to figure it out is to stay by the car for a few minutes after you shut it off and listen for the noise to try and pinpoint where it's coming from. Either way, it's nothing to be concerned about, at least I wouldn't think so, anyways.

[jiveass]

my iron 5.3 does this ....didnt notice it when i had the ls1....i figured it could be thermostat doin it or somethin

[SuperSport Ron]

my iron 5.3 does this ....didnt notice it when i had the ls1....i figured it could be thermostat doin it or somethin

Ya i hear it ur probably right nothing to be concerned about, just making sure my baby ain't about to blow up or anything lol....thanks for the help

[SuperSport Ron]

One more thing guys since i got all u here......i just changed out my front roters and pads because i had heat spots on them really bad, my car is a little shy of 60k and if the back are anything like the front there factory roters, I dont really see any hotspots on them though but whenever i do some soft braking i get really bad brake feed on my pedal and my steering wheel and sometimes when i go down a hill really slow ill hear a knocking and a un balanced feeling as if my tires on crooked (which i know its not lol)....u guys think its just my roters being hot and warn out or do you think it could be something else???

[FinZ28]

Might want to make sure your wheels & tires are balanced right. Front brakes tend to wear quicker than rears but you might need to look at your rear brakes, too.

[cammed goat]

I agree about the knock being the pipes. They are cooling down. As for the brakes, sounds like your rotors are warped.

[2002ssslp]

This.

Exhaust

[robs98mysticZ]

i have longtubes and they f-in pop loud in cool down like someone else mentioned like clicking your tongue off the roof of your mouth lol

[FinZ28]

i have longtubes and they f-in pop loud in cool down like someone else mentioned like clicking your tongue off the roof of your mouth lol

Exactly what my car sounds like after I shut it off.