I have a f 250 2000 mod.7,3 diesel.Now it start to use atf.I cannot see any leaks under the car.It is dry everywhere.I used about 5 quarts in one week,if it had been any gasket or seals ,i would see it.It just come out from a shop, they took out the transfercase to fix it.Now i wonder if they have done something funny. Please help a cold Norwegian.

 

Don't know if these trucks have a similar configuration, but my '95 F150 had the seal between the tranny and t-case go bad and start leaking atf from the tranny into the t-case. You might want to check the fluid level in the t-case to see if it's way over-full.

 

You can bet that's where the oil went. There is a new seal design out that has a double seal design. Loosing the oil into the transfer case is common.

 

Thank you guys,it was like you say.I went back to the shop,and the mecanic open the filling plug on the transfercase. It came out about five Qarter atf.

 

Chalk up another one to FTE!

Thanks for the feedback, bonesbut!