I just purchased a 2020 Expedition in August, and right now it has about 2200 miles. I've used 4wd about three times for snowy roads (all low speed) and every time after just a couple of minutes a clutch/gear oil burning smell enters the cabin.
Originally I thought this was just part of break-in, but the most recent 4wd use was for about 20-30 minutes total and the smell stayed around for a LONG time. Almost the entire 30 minute 2H drive home. I called my dealer, and no one has heard of this. I looked under the truck, and can see a few oily spots on the back of the TCase housing, and at least one of them is definitely gear oil. Strange thing is, the housing actually looks to have small cracks in it. Maybe I'm just not used to seeing that surface finish.
Has anyone had a similar issue with the 4wd smell? I've searched quite a bit and can't hardly find anything.
Originally I thought this was just part of break-in, but the most recent 4wd use was for about 20-30 minutes total and the smell stayed around for a LONG time. Almost the entire 30 minute 2H drive home. I called my dealer, and no one has heard of this. I looked under the truck, and can see a few oily spots on the back of the TCase housing, and at least one of them is definitely gear oil. Strange thing is, the housing actually looks to have small cracks in it. Maybe I'm just not used to seeing that surface finish.
Has anyone had a similar issue with the 4wd smell? I've searched quite a bit and can't hardly find anything.