another weird noise...

Reply Subscribe

Thread Tools

Search this Thread

May 27, 2002 | 12:54 AM

V10man

Thread Starter

Logistics Pro

Joined: Feb 2000

Posts: 3,955

Likes: 49

From: Mesa

another weird noise...

Today I started hearing a faint grinding sound between 1000-2000 rpms. It does it in gear or out. A/C on or off. I can best discribe the noise like using a grinding wheel to sharpen a knife. zing.. zing.. It varies in loudness. Under the hood, it sounds like maybe the PS pump. While turning the wheel, it makes no noise however. I suppose it could be a high pitched metal vibration. AUGGGHHH!!! :-X23 I'd like to narrow it down before hitting the dealer.. Thanks.

May 27, 2002 | 10:13 AM

Waxy

Postmaster

Joined: Feb 2002

Posts: 3,496

Likes: 0

From: Calgary Canada

another weird noise...

My first guess would be the alternator.

May 27, 2002 | 04:58 PM

Gary E K

Senior User

Joined: Apr 2002

Posts: 489

Likes: 0

From: Seffner/Tampa Florida

another weird noise...

Gary's 99 V10
https://www.ford-trucks.com/user_gallery/displaythumbnail.php?&photoid=4669&.jpg
Man, I never heard anything like that,hope I don't.
Someone will get on and help you.

May 27, 2002 | 05:56 PM

Monsta

Sit. Stay.

Joined: Oct 2001

Posts: 18,308

Likes: 20

From: Washington State

another weird noise...

It makes this sound while moving AND at a standstill?

When does it vary in loudness? More when you're on the gas?

So the noise stops when you turn the wheel?

Does it stop after 2000rpm?

Inquiring minds want to know...

May 27, 2002 | 09:46 PM

wolfmanagh

Posting Guru

Joined: Mar 2002

Posts: 1,129

Likes: 0

From: Twin Cities, MN

another weird noise...

I seem to remember an alternator craping out like that, making grinding noise when put under load. It was on a 99 E450.
I'd start first by taking off the belt and spining the all the pullys looking for a dry/sticky one.

May 28, 2002 | 02:35 PM

Waxy

Postmaster

Joined: Feb 2002

Posts: 3,496

Likes: 0

From: Calgary Canada

another weird noise...

V10man, I should have been a little more helpful in my first post. I tried to edit it but it wouldn't let me?

Anyhoo, sounds like the problem I had more times than I care to remember with my '89 F250 and a series of crappy alternators. Is the alternator excessively hot after a period of driving? I'd start by taking the serpentine belt off and checking the alternator pulley. Sounds to me like the bearings in the alternator are shot.

There, that's the post I should have put up the first time.

Waxy

May 28, 2002 | 05:44 PM

V10man

Thread Starter

Logistics Pro

Joined: Feb 2000

Posts: 3,955

Likes: 49

From: Mesa

another weird noise...

It doesn't matter if I'mmoving or not. I can rev the engine in the driveway(1000-2000rpms) and hear the noise. It does seem louder when I'm giving it the gas. Turning the wheel has no effect on the noise. Actually there isn't any of the typical PS noises(maybe it's not the PS) It does come and go. When the engine is cold it isn't there. I'll tell ya it is the oddest darn sound... Thanks for the tips.