Grinding Noise

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Sep 27, 2006 | 09:18 PM

newthursdaybrand

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Grinding Noise

Hello.
I drive a 97 expedition. Under light medium or heavy acceleration there is what sounds like a grinding noise from what i believe is the rear axle and i can feel shaking in the pedals. If i take my foot off the gas, the grinding stops. The expedition has 160k miles on it and has never given me problems b4.

Thanks,
Matt (AIM: takingbacksaosin) - send me an AIM if you have any idea. THanks

Sep 28, 2006 | 08:07 PM

aagitch

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Are you also turning when you have the noise? If you have the limited slip rear end, you may need to change your fluid. The dirty/old fluid can cause your clutch packs to make noise.

Sep 28, 2006 | 09:19 PM

FTE Herman

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Sounds like u-joints to me. Oh, and welcome to FTE!

Sep 29, 2006 | 09:13 AM

04markIII

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From: Lunenburg, MA

i have same problem when turning and accelerating. tech told me clutch packs in rear end are junk.

Sep 29, 2006 | 02:53 PM

bmizzac7

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Joined: May 2006

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Quote:

Originally Posted by newthursdaybrand

I have an 2003, but most of the parts and problems are the same. I had the same noise, accelerating from a stop light and turning used to make this noise. I bought some FRICTION Modifier from the parts department at Ford, cost about $5. I had another garage(meineke) put it in when I got the oil changed there. It goes in the only bolt you see on the rear axle. They popped it in for free with the oil change. Try that first, before doing any "suggested" work on the axle. ps. if you have ford put it in, I believe wanted over $50 for it that is why I used the "by the way line could you guys put this in real quick" at meineke.

Sep 29, 2006 | 02:54 PM

bmizzac7

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Quote:

Originally Posted by 04markIII

i have same problem when turning and accelerating. tech told me clutch packs in rear end are junk.

See my last entry--Probably just Friction Modifier and they wanted to squeeze you for service charges.

Sep 30, 2006 | 06:53 AM

04markIII

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Joined: Jun 2006

Posts: 980

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From: Lunenburg, MA

lol, i work at a dealership, so i get a lot done for nothing. we added the modifier, and it helped for awhile, but the grind is back, and i have the infamous whine. tech said i need a pinion gear set and a clutchpack set.

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