Very recently I have noted that when I turn my engine off I get this sound like a low steamboat whistle, its almost as if the car is exhaling. I recently had the car serviced which included getting the injectors cleaned out. Ha s anyone experienced a similar noise?

 

Yes, but it was on my 2008 Bayliner boat with a 4 cyl sterndrive carborated engine Sorry, none of my Lexus cars have ever done this.

 

No extra sound(s) on shut off from mine. You maybe hearing a loose vacuum hose?

 

I have an idea it may be from the a/c, could the fluid draining back to reservoir make such a noise. I had a Bayliner and that sucker made all kinds of noises.....

 

Vacuum leak is most likely. Check the intake plumbing.



Justin...