Got a weird hissing noise coming from the front (maybe left side) of the engine. Was looken down their but didn't see anything out of the ordinary. Seems to be doing it mostly when it's hot.

Some one said it might be a vacum leak, cause the car also has a ruff idle, but no shaking in the rpm.

 

A visual inspection of all vacuum hoses as well as the intake ducting would be a good diagnostic start.

 

intake ducts seem ok

I covered the intake with the car on and it still stayed on, hissing got louder, it idled ruff for a second or two and then stabalized.

Where are the vacum lines stuff located?