Could use some advice

[pagluy]

I've got a hiss coming from my engine bay area. It doesn't do it when the car is in park, but once I put it in gear it starts right away. Any advice on what this could be?

I searched and saw PCV valve on V6's but I don't know if it could be the same for the V8.

 

[Black87LSC]

I'd chock the wheels and put it in gear and see where its coming from under the hood, just dont rev it obviously

 

[gcwimmer]

No PVC on the V8.

 

[Speedylifsavr]

ck all your vacuum lines.....sounds like a vacuum leak