Hello, I started experiencing a problem with my 2002 Grand Am today. 3.4L V6
When I got to work this morning and parked I could hear a whistling sound, turned off the heat and music and the whistling was coming from the front end of my car. I turned off the ignition and it sounded like a balloon deflating. Did not think anything of it. On my lunch break, I drove it to a nearby store and I found that when stopped at a red light the car seemed to be idling rough and rocking back and forth. No lights lit up, so I thought maybe it will be fine when I return to work. When I got back in, I noticed it is still rocking when idling. I was scared to drive it so I called a mechanic I use all the time, he didn`t think it was too much to worry about and told me to go ahead and take it home. When I drove home, it was fine for a few minutes but started the rocking again when warmed up. My check engine light then came on. I started watching the RPM when I would stop at red lights. My RPM while driving is about 2000-2500. When I stop, it suddenly drops from 1000-500. Then starts going up and down between 500-900. I refuse to drive it now, as I don`t want to make this worse. It has been harder on gas for a little while, but I thought maybe it was just an old car thing. Any advice would be extremely helpful.
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