clutch or transmission on 1993 Mercury Tracer

When my car is on i cant shift gears but when the car is off i can put it in gear but if i crank it up it shakes and rattles badly is that my clutch or transmission.

by in Houston, TX on December 04, 2009
1 answer
ANSWER by , December 08, 2009
Probably the clutch or clutch master or slave cylinder has failed and won't disengage fully thats why it won't go into gear while its running, Have a shop check the master cylinder. slave cylinder and the clutch itself.