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2000 Ford Expedition Front end grind

6 messages,  Last post on Apr 22, 2009 at 2:58 PM

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#1 of 6 2000 Ford Expedition Front end grind by frdexpo Oct 31, 2006 (7:23 am)
I own a 2000 Ford Expedition that is nearing 130,000 miles on it. Yesterday I had some new tires put on the front end. Then when driving home last night every time I applied the accelerator when going up a small hill it would make a grinding-vibrating noise. It never happend at any other speeds and only when I when I applied more acceleration going up a hill. (When the truck needed more power) I am fairly sure it could not be caused by the tires that were just put on. Does anyone have an idea of what it might be? The noise is generating from the front end. Thanks Replies to this message: fundad (Nov 22, 2006 8:31 pm) frdexp (Nov 27, 2006 3:26 am) budman685 (Apr 22, 2009 2:58 pm)
#2 of 6 Re: 2000 Ford Expedition Front end grind [frdexpo] by fundad Nov 22, 2006 (8:31 pm)
Replying to: frdexpo (Oct 31, 2006 7:23 am) Converter shutter???
#3 of 6 Re: 2000 Ford Expedition Front end grind [frdexpo] by frdexp Nov 27, 2006 (3:26 am)
Replying to: frdexpo (Oct 31, 2006 7:23 am) I own a 1999 Expedition with the same front end grinding noise. I recently had the four wheel drive motor replaced as per a service bulletin, however, no change. Any luck with your problem?
#4 of 6 Front end noise on my AWD by gentry Feb 18, 2007 (8:32 pm)
My 1999 Ford Expedition has AWD. It makes BAD noises in the front end at slow speeds and when you first start moving or make a turn from a stop. It's a grinding or popping. The Ford dealer in Blue Springs, Mo says its normal and very common. The dealer said to just drive on! Replies to this message: jaredc1128 (Jun 05, 2008 12:46 am)
#5 of 6 Re: Front end noise on my AWD [gentry] by jaredc1128 Jun 05, 2008 (12:46 am)
Replying to: gentry (Feb 18, 2007 8:32 pm) I have a 99 expedition awd and i had the same clunking noise at low speed cornering. it winds up then pops. i posted numerous forms trying to find out what was wrong before paying top dollar but got no response. my dealership said it was the ball joints but i had a tranny place look at and turns out all it was is the rear driveshaft speed sensor. the clunking was because the transfer case could not tell thow fast the rear shaft was spining. the part is hardwire to the transfer case motor which costs alot but a good shop should be able to find a old motor with a working sensor for cheap. My truck drives perfect again for under $200.
#6 of 6 Re: 2000 Ford Expedition Front end grind [frdexpo] by budman685 Apr 22, 2009 (2:58 pm)
Replying to: frdexpo (Oct 31, 2006 7:23 am) I had the exact same problem on my 1999 awd...it is the new tire replacement on the front end...the new tires are larger than the rear tires that are worn down therefore the rear tires are spinning faster and causing the axle sensors to think the wheels are slipping ...the front transfer case then starts to clutch up and that gives you that clutching grinding noise. I put new tires on the rear that matched the front in size and the noise went away. google awd tire problems and you will get more details. They don't tell you at the tire shop but if there is more than 1/4 inch difference in the size of the tires it will cause the clutching problem.

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