Zerokube

iTrader: (4)

When i start the car and drive at super low speeds in 1st or 2nd i hear a whirring or whistling noise coming from my car. i had my neighbor ask me when i supercharged the car and its not, kinda sounds like it. i checked to see if it might be a vacuum leak and nothing, no leaks. Anyone have any idea what this might be? I think my belt is squeeking as well or my water pump pulley is going.

8675309

iTrader: (3)

Check your power steering fluid, tt might be low. Or your power steering pump could be going out.

marors1

iTrader: (1)

I vote for an air pump noise. Mine make a similar sounding noise for a few minutes after startup. I don't think there is any issue with the noise if it is the same one I hear.

samson_420

iTrader: (1)

Most likely the Air Pump. If you want to check, pull the air pump fuse.

I pulled the fuse out of mine, I hate that sound. It will throw a code though, but that's about it.

waldershrek

iTrader: (1)

Mine has done the same thing since I got it. Sounds like it's supercharged or something. No codes though and no decrease in performance so I haven't even bothered looking for the source.

kinglt-1

iTrader: (26)

my 03' silverado w/ 5.3 does the same thing.