Well this has been going on for a bit now. Before it was just every once and a while now its getting to be an everyday thing. I go out to the car and try and start it. Sometimes it starts right up and sometimes it doesnt. When it doesnt start you can hear it turning over for like a second then you hear what sounds like a valve opening and you get the pphhhssss..... noise and it doesnt nothing. i turn the key back and wait a second then it usually starts right up. I dont have a problem driving it and never had a problem stalling in traffic. I really dont know what it is. I know it could be alot of things. I have new plugs and wires that i bought months ago that im going to install soon. The fuel pump works because you can hear the buzzing sound when you turn the key. I dont know if it could be a dirty sensor or if the fuel filter might need to be changed. Any help would be great.

anyone?

Change the fuel filter and check the air filter it may be clogged.