pugsly027

I searched this trough this forum already and didn't get an exact match to my problem. MY 03 Type S makes a loud humming sound for about 5 mins after I start it. It will do it while I am in park or driving, but only for about 5 mins after I start the car. I brought it to the dealership, where I have bumper to bumper coverage, and they told me it is JUST the power steering pump and they didn't do anything to fix it. They told me not to worry about it. Is it supposed to be this loud? Is it about to go?

Sun Diego CL-S

So it does the humming constantly for 5 minutes or for a bit 5 minutes after turning the car on?
If you're talking about a quick, short hum that happens twice after you start rolling, it is the brake system automatically testing at certain low speeds. If you know what I mean here and it is making a different sound that is bugging you, just keep insist on getting this checked and/or fixed.

-Luis

pugsly027

yea but i happens even when im in park, and when im driving. and it happens more than once or twice. its a short hum that will happen in intervals for about five minutes

Sun Diego CL-S

Yeah, I didn't think so since you had said that it did this in park. And when it does this, no AC components are on?

pugsly027

nope, nothing. doesnt matter if the car is cold or if i start it in the garage.

fsttyms1

Do you have a cai?

Double check that the intake is connected to the airbox correctly and that all the vacuum lines are connected to the intake (the rubber part that goes from IM to the airbox)

fuzzy02CLS

iTrader: (2)

It sounds like intake hum. Check the bottom of your air box, inside it. There's a rubber sleeve around the hole. That may be loose or missing. I know when I took it off the intake hummed really loud.
Also check your air filer is clean & not obstructed. And have you ever replaced your cabin air filters?

belcom

iTrader: (1)

maybe it's the ABS noise. it does kind of sound like humming

Sun Diego CL-S

^That's what I thought too. I mentioned this in post #2. He did say that it made the sound in park as well. So it is not what we thought.

pugsly027

thanks for the input. i am actually headed to the dealership again today for something minor. should i mention it again?

fsttyms1

Good thinking, it could be that as well

Alperovich

could be power steering pump.

does it do it, only when its colder out? i have this issue on my 4runner. its a indicator that the pump is going bad. mine has been doing it for 4 years atleast, only now its really starting to fail.

NightRider

I think it's definitely something to do with airflow. Is your car high mileage? Mine has 103k and does the same thing, I have k&n intake and header and you can hear the hum from inside the house. Of course I think one of the piping connectors is cracked in my case so that probably makes the sound a bit louder than usual. The headers also sounds a bit strange on a cold startup, but I don't mind. It's not ABS because that is only when driving and that is more like a mechanical sound, like a didgeridoo or a sound Rahzel would make, if that helps at all?

Sun Diego CL-S

Why shouldn't you since it is something that's bugging you. Let us know what they find out.

EL19

iTrader: (4)

i vote it has sumthn to do with intake

rondog

iTrader: (1)

unplug your car battery for 2-3 hours, replug her back in, punch in the radio code, and navi code, then drive it like you stole it for 15 minutes, head back and shut her down. the next morning drive like you normally would and you will start to hear the noise go away. i had the same problem, sounds like a UFO under hood.