GM Forum - Buick, Cadillac, Olds, GMC & Pontiac chat

GM Forum - Buick, Cadillac, Olds, GMC & Pontiac chat (https://www.gmforum.com/)
-   2000-2005 (https://www.gmforum.com/2000-2005-90/)
-   -   Grinding/humming sound...NOT wheel bearing??? (https://www.gmforum.com/2000-2005-90/grinding-humming-sound-not-wheel-bearing-223032/)

TrueWildMan 10-01-2005 06:41 PM

Grinding/humming sound...NOT wheel bearing???
 
That's right. I have an all-time humming/growling sound coming from the driver's side front that has been steadily getting louder. It doesn't matter if I turn the wheels, the sound remains the same. I just spent a few hours replacing the wheel hub/bearing.

Went out for a test drive...same sound. Could it be the half shaft? Please don't say differential.... :cry:

Thanks for any advice/help.

PontiacDad 10-01-2005 07:54 PM

Check the strut tower bearing, drive over a speed bump steering wheel straight then left and right. Does the noise increase?
The diff is on the passenger side so I think your ok?

compyelc4 10-01-2005 10:37 PM

I suppose there is no chance that it could be your pneumatic self-leveling pump running? Hmmm?

markwb 10-01-2005 11:18 PM


Originally Posted by compyelc4
I suppose there is no chance that it could be your pneumatic self-leveling pump running? Hmmm?

Automatic Level Control compressor is located right rear quarter.

compyelc4 10-01-2005 11:22 PM

No kidding!? Must be thinking of my '92. I'm going to have to look again.
Sorry about the ill thought-out advice. :oops:

AD Bear 10-02-2005 01:54 AM

Having noise from same driverside front wheel. Can hear a lot
at low speed like parking.

Today I took my car to the dealer & they adv the problem was a bad hub.
So they replaced the bearing assmbly & hit me for $468.

So tonight parking the car at walgreens I hear the noise on the passenger side
& turned the radio down & heard it on driverside. :explode:

& now that I hear on both sides I'm not sure what it is.............

TrueWildMan 10-02-2005 03:34 PM

Nono, it's a constant whirring just like a bad wheel bearing, but I replaced it, and it's still doing it. I guess my question is what is the next bearing in the drivetrain that would be growling like that?

TrueWildMan 10-02-2005 03:57 PM

Let me add to this since the last message was from my cell phone. :P

It's a constant whirring that increases in volume and pitch as I increase speed, then decreases in volume and pitch as I decrease speed, just like a bad wheel bearing.

However, I replaced the wheel bearing, and it's still doing it. Would the passenger side wheel bearing telegraph over to the driver's side? I wouldn't think so.

Would the differential make a growling bearing noise if it was going bad?

TrueWildMan 10-02-2005 11:47 PM

Anyone? :?

TrueWildMan 10-03-2005 01:44 PM

Anyone know where I can find an exploded view of the drivetrain on the driver's side, perhaps?


All times are GMT -4. The time now is 06:34 PM.


© 2024 MH Sub I, LLC dba Internet Brands