Hissing After I turn the Ignition Off
Hissing After I turn the Ignition Off I've noticed in the last couple weeks that when I turn the engine off, for about two seconds, I can hear a hissing coming from the engine bay. I can hear it from inside the car so it's sorta loud. It sounds almost exactly like air escaping from a tire. At first it's fast, but then it slows down and stops to where there is no pressure. It's not the tire though, and it only last like 2 seconds. I was thinking maybe it's a radiator, not sure though. Anyone care to explain? Thanks! 
Re: Hissing After I turn the Ignition Off Possibly, but I hear it EVERY time and it always sounds the EXACT same. I would think that the engine doesn't stop the same way every time.
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Re: Hissing After I turn the Ignition Off air pump maybe, mind did this and i tore my hair out looking for it but gave up, but after i deleted the pump, and quite a few other things its stopped, just a thought
Re: Hissing After I turn the Ignition Off It is most likely that air pump or ac, but also check the lid on the radiator is tight, i had that problem once, the cap was 100% tight and i heard lots of hissing when the car was turned off
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Re: Hissing After I turn the Ignition Off I have that same sound. I never noticed it until after I installed my SLP lid with the rubber block-off strip in front. I am not 100% sure, but seeing as how I only noticed it after I installed those parts has led me to believe that it was that. I also rarely ever use A/C and I know what the AIR pump sounds on startup at least. If you have a lid and that little rubber strip you should try removing the strip and listening. Next time unplug your AIR pump. Next time unplug your A/C. Radiator? That should help you find the problem or get you a lot of SES codes 
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Re: Hissing After I turn the Ignition Off Ok.... I'm sure it's not the lid, because I hear the hissing after I turn the ignition off. The engine has stopped turning and then I hear the hissing noise for 2-3 seconds after the engine has stopped rotating. I never use the A/C, I do have the AIR pump but doesn't that make more of a whining noise?
