I have a 2003 with a 6mt. It has 190k and all oem motor and tranny. When i shifted from 2nd to 3rd the car jerked with a thud sound and it was like a cross between a hard shift and slipping. While i was in 3rd giving it a little gas it did it again it moved the whole car.... Any ideas?

 

Sounds like the clutch isn't disengaging, bleed it first.