hard shift

Trans runs great but when it get hots it has developed a 'hard' shift from 1st to 2nd. My mechanic says the tranny needs to be rebuilt, however, he offers no objective confirmation of cause of the problem. Just a 'trust me' evaluation. Friends have suggested it is probably a weak pressure...

Hello! I recently came into possession of a 2005 Buick LeSabre Custom. It's my first car, and in all honesty, I'm loving how comfy it is. It has a majority of its suspension recently replaced, so many of those issues are gone, but I'm running into other trouble. I work at an auto parts store...

Hi all, I recently bought this 2003 Buick Lesabre and as the title suggest, I'm having shifting issues. The shift from 1st to 2nd gear is very long and harsh, and the rest seem to be fine. I'm pretty sure it the pressure control solenoid because everything I've read describes this as the main...