Weird noise when car's off

[InsidiousMSP]

Sometimes after I've just driven the car, a 2 or 3 second hissing noise comes from the car every so often when it's off. It sounds like liquid hitting something hot and sizzling. The sound appears whenever, 30 seconds after the car is off, or even 5 minutes later. Can't figure out where it's coming from. Anyone else hear this noise?

 

[Pmpkinhead]

Could it be the AC? I think mine does that!
1244 (mspo)

 

[Aaron]

mine too

 

[Dexter]

mine did that once but it was def. not the A/C i never use A/C. i dunno WTF it was, but it has never done it since *infinite shrugs*

 

[Newf]

I heard it in mine as well. Sounds like bubbles????

wtf?

 

[bcbadboy]

I hear that coming from my tail pipe. It's like a ticking sound.
No it's not a bomb either.

 

[EVILSRT]

I heard it in mine as well. Sounds like bubbles????

wtf?

that sound is your coolant in the resovoir bubbling and boiling.....mine does it too.....and I have no clue why

 

[bcbadboy]

I don't hear the bubble part. Do you hear it after driving for a long time?

 

[EVILSRT]

No....it just happens whenever..

 

[bcbadboy]

I thought maybe cause it was so hot there where you live that was the problem.

 

[EVILSRT]

^ That could be....I just need to take it to mazda.

 

[InsidiousMSP]

No ticking or bubbling here. Just sizzling.

 

[Newf]

sizzle is a good word for it. And can't say I drove it hard but it was on for a while, and there is less then 100 kms on it at the time.

 

[MrRoseBlackMSP]

I went to my service guy for this he told me that because of the turbo the engine gets hot as hell he said it was just becuase of the massive amounts of heat that and probably because it might have been wet it made sense for me considering new jersey turned into seatle in the last month, but it hasnt happened on a nice dry day so the point is i really dont know either

 

[MemphisRacer]

The water circulating in your motor gets extremely hot just going through the motor, on top of that, it flows through your turbo to cool it as well and when you cut the car off, the water is no longer circulating. It sits right where it is, boiling and hissing untill it cools off enough to stop making that annoying noise. I thought it sounded kinda like a couple of snakes were humping inside my radiator