2003 Buick Century, 87,000 miles
Transmission flushed and filter at 75,000 miles to stop hard shifting. Mechanic stated no codes.
This seemed to work for a short time. Then, it started again.
Sometimes when warm, stop at stop light, start off and bam, shifts and then goes on. Never shifts hard in other gears, just 1-2.
Will the shift kit fix that. Either zzp or transgo?
I plan to use Seafoam for a week, Put in kit, and switch to either Maxlife or Dexron VI.
I am not a mechanic but can do most things.
Thanks for the info,
Michael81240