Hey lets play a game of "Guess that sound!"

I've heard this before....
You may also be able to hear the rasp sound in the background... (the one I was told was normal forged piston slap.... in 60 degrees.

If that doesn't work...
https://flic.kr/p/musyNQ
or this
https://www.flickr.com/photos/116371683@N04/?details=1
Thanks for any help guys!

 

Sounds like a popcorn machine. Sure don't sound like piston slap.

 

What area is that noise coming from? Under the drivers side? Front or rear of the motor? Left or right side? Really hard to tell from the video if it's in the motor or not.

 

Sounds to me like a pulley with a bad bearing, alternator or idler maybe.

 

I honestly can't tell where from...It doesn't happen often. This was the worst time.
I popped the hood and it was louder!

Thanks for the help so far though!

 

Wow that is really freaky. Does not sound like any kind of internal engine 'tick' or piston slap. You may want to get a flashlight and a jack and perform a visual inspection of the engine bay, pulley, exhaust, etc. Very weird clickety clack sound, you try to have a helper or 2 stand in front/back/side of your car with the hood open on start up to help isolate the noise...

 

To me, it sort of resembled water dripping onto a hot surface. Could it be that the AC condensor's drain tube is over a hot exhaust pipe, and is dripping cold water onto it?

 

Bucko, that avatar is really annoying... just in case you were in the mood for unsolicited opinions.

But a clickety clack sound from water dripping onto a hot exhaust? Plausible if this happens after the car has run for a while and then is restarted after its fully warmed up in warm/humid weather... But if only on a cold startup? Not so much...

 

Wondering if the catalytic convertor came apart internally. I've heard older ones that sound like rocks rattling around in them. Just a guess.

 

If it was in the motor wouldn't the sound speed when the RPM's increased?
I was kind of thinking the same thing, I have heard of something similar to that right before the cats puked their guts.

 

That sounds terrible. Might want to take it in to your dealer.

 

This is what it think it is too

 

OP mentioned it was a "Guess the sound". It was my guess based on my "ear" observation from the sound clip I listened to.

As to the avatar: Glad you like it.

 

Almost sound like the Disks on the cutouts tapping.
Does it go away when it warms up or does it still make the noise?

 

I'm with these guys. You might also check for a loose idler bolt or a dry (degreased) idler spring. That sound won't necessarily change with engine speed. You can put a wooden stick on the suspect area and listen to the other end to help localize where the noise is coming from. Just beware of moving parts so you don't jam it through your head!

 

........

So maybe I'll get that one guy at work to hold the wooden stick.

Right now, it's not making the noise (which is even more frustrating) so I can't take it to the dealer.... or can I? I mean, honestly, would the techs take a look at something that isn't "currently" making the sound?

btw, thanks for all the replies everyone and sorry it has taken me a couple days to respond.

 

Hello Krohn,

I recommend you having your dealer check it out as well. Let me know if you want me to escalate this for you as well.

Deysha

 

I did take it to the dealer but the "popping" sound never came back. One time only.
The other rattles were finally assessed as a bad starter. New starter fixed it completely!