okay, here are my car specs before i say anything
2000 Honda Accord LX, 4 Door Automatic
only mod is AEM SRI


ONLY when i start driving do i hear this high pitch squeeling sound, you don't really notice it with the windows up, when the windows are down you HEAR it, there is no sound when i start braking, when i begin breaking from 50 or so, and it starts to slow down, the sound seems to dwindle down also. when i'm idle, no sound, when i start driving, the sound begins to start up again. anyone familiar with this problem? brakes? rotos? cv joints?
NOTE:
1) i do have a splash-guard that's half-way snapped, BUT it's not touching the floor nor grinding against anything, is the wind blowing on it like a whistle?
2) i'm almost due for my brake pad changes, but remember once again the sound occurs when i'm accelerating and grows with speed, when i start to slow down with brakes, the sound slows down also, no sound amplifies or is associated with stepping on the brakes.

thanks

 

Odds are it's your wear indicators on your brake pads...meaning you need new pads and possible new rotors.

Pads and rotors are an easy DIY, search on here, I've posted some DIY pics, might need to look in the DIY forum.

Inspect the rotors, and if they are asymptomatic (no shaking in the steering wheel during braking at high speeds) and the wear indicator didn't groove them too bad, they might last a while longer.

Technically you are supposed to measure the thickness, etc...but you could just replace them since you are doing the pads anyway. If you want a factory replacement, look at Brembo OEM (blanks) replacements, cheaper than Honda, great quality.

Do some online reasearch on bedding in your new pads to get the best performance.

 

it's the brake pads?
but there's no sound or squeeling when i step on the brakes.
it's only there when i begin to accelerate, leading me to believe it's neither of the pedals, rather when the axle/wheels begin rotation.

 

How long have you noticed this? Could it be the hissing from the air filter? With the high performance air filter like k&n or aem, expect a little hissing at high rpm because of the high air suction.

 

Rev the engine in idle and see if you can hear it vs. driving at high speeds. If it's engine related it will sound. If it's driveshaft or beyond (brakes, etc), you'll only hear it at high speeds. You might also want to drive next to a wall on either side to pinpoint which side you hear it the most (with the windows down, of course). Let us know.

 

Well you never said it was dependant on throttle, you only said when the car was moving. So it goes away if you let off the gas and coast?

What usually happens with the wear indicator is that it will start out as light squealing that goes away when you apply the brakes. Eventually it will get louder and persist even if you do depress the brakes.

If the noise goes away when coasting, and only happens on throttle, then it probably isn't the brakes.

If it happes when coasting, then check the pads to rule it out...only takes 15 minutes. And don't rely on just the outside pad, take both pads out of each caliper and inspect them.

 

Post your DIY in the FAQ thread h:

 

okay, i revved the engine when im in park and there's no squealing
so, it's not that
the only thing that continues is as originally stated
-high pitch squealing from front lower as the wheels are spinning, NOT necessarily associated with the throttle, more associated with the axle/tires spinning
-when i step on the breaks, the sound slows down with the vehicle, stepping on the brakes has no association with the sound, not does stepping on the throttle
-it appears to be associated with the tires/wheels/axle/disc/rotor/brakes?

i will check the brake pads as soon as i find someone who knows what they are looking at.
any other ideas?

 

My bet goes on very very badly worn wheel bearings.

Take off the wheel and see if you can move the hub back and forth with your hand.

 

Squealing...I'm still going with brake pads, you even said in your first post that they need to be changed.

From my experience a bad wheel bearing is more of a humming noise, and braking won't get rid of it, it'll just get quieter as the car slows down.


Just check the brakes, I'd put $20 on the the fact that you're hitting the wear indicators.

You can do this very easily yourself if you have simple hand tools and a floor jack.

Remove both sets of pads, and look for the metal tab (see below picture) that is positioned so that when the pad material is nearly gone, the metal tab will end up rubbing on the rotor. If the pad is at or near that metal tab, time to change them. Also check the rotor surface to see if the tab has been rubbing long enough to score the rotor and put grooves in it...if so, the rotors need to be changed as well.