Startup sound

[Kingsam1985]

Does anyone else experience a kind of like misfire in and out sound when letting the car come down from revving high?

 

[aceinspp]

No back fire. When car is first started it's loud then as the engine warms up the by pass exhaust valve will switch the sound to a lower level. Later RJD

 

[Kingsam1985]

True I understand stand that but wile in the open position it sounds like it skips a few times....no check engine or rough idle it just sound like its going in and out of a misfire at some points in that open position

 

[aceinspp]

So far have not noticed it. Maybe I'm not paying attention on start up. Later RJD

 

[Kingsam1985]

This is a clip its subtle so you have to really listen its not like a steady grumble its like it skips ( and no not that pause that happens on every start) this is different