1992 LT1 - Intermittent hissing sound when turned off
Any idea what this intermittent hissing sound is? It occurs about every 25 seconds after the car is turned off, and is coming from down low on the passenger side.
The car is also having the weird issue where it will start and then immediately die. You have to start it and as soon as it cranks, rev the engine to get it to stay on otherwise it will die. It doesn't do it every time, usually after I've taken it out already and stopped somewhere, when I go to restart it then it will do it. The battery voltage is good so it seems to be something else. Vacuum leak maybe?