1998 Ford Explorer Vehicle making Unfamilure noise

SHADOW_HUSKER

MEMBER
1998 FORD EXPLORER
6 CYL
4WD
AUTOMATIC
139,000 MILES

When I am driving Periodicly u will hear a sound that sounds like someone is sticking a pencil into a fan blade. It does it most noticeably at around 30 M.P.H and above. When it does make this noise it may last a second or it may last 15 seconds or more. I have taken it to some local mechanic's and none have heard a noise like this, At first I thought it was the drive shaft, but that is tight and appears to be fine. The last shop I toook it to thinks it may be int he transfer case or the transmission. Any one else had anything like this?

5 Replies

JACOBANDNICKOLAS

MECHANIC
109,700 POSTS

Does the sound seem to come from under the vehicle or under the hood?

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Thursday, October 28th, 2010 AT 8:35 PM

SHADOW_HUSKER

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2 POSTS

Under the vehicle, when driving it sounds like it is in the center under the vehicle.

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Thursday, October 28th, 2010 AT 8:41 PM

JACOBANDNICKOLAS

MECHANIC
109,700 POSTS

Have you checked the splines on the driveshaft yoke? Also, did they check u-joints? Is there any chance the 4wd could be trying to to engage.

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Thursday, October 28th, 2010 AT 9:18 PM

SHADOW_HUSKER

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2 POSTS

The Shop I took it too, Said they checked both the drive shaft and U joint's. They said both were tight, I had some other people tell me to have those checked as well, As for the 4 wheel drive i, m not sure on this. It is Auto 4 wheel drive at all times then can be switched from 4 high to 4 low. Another thing I remember is back In june or July I was driving at about 25 m.P.H when I heard a squeel and a pop/thud from underneith the truck, I immedietly pulled over but found nothing wrong. After that it was a few weeks before I statred hearing this sound

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Friday, October 29th, 2010 AT 5:33 AM

JACOBANDNICKOLAS