The auto trans on my 2000 Focus ZTS required a rebuild at 95K miles after having the trans "flushed" at a local service center. A local independent trans shop did the rebuild in Dec 2010. From the time the car was retrieved until now (Feb 2012) we have driven the car less than 2000 miles. Upon starting the car, there is an extreme vibration that DID NOT exist prior to the trans rebuild. The vibration and "whine" lessens after the vehicle has been operated for 20-30 minutes but it still feels as though the car is laboring to operate the rebuilt transmission. Do rebuilt transmissions require a break in period to begin operating smoothly? Any suggestions re the issue or how to explain it to the shop? Can I provide any additional info to assist in your virtual diagnosis?
Monday, February 27th, 2012 AT 11:06 PM