Are you sure it is trans fluid? The only way that can happen is if the radiator is bad and where the trans fluid runs through it, it mixes with coolant. After that, the trans fluid would need to mix with the motor oil via a bad head gasket or intake gasket.
Take it back where the work was done, they couldn't have fixed it for this to happen. Let me know if you have other questions.
Tuesday, April 6th, 2010 AT 1:31 PM