I have an 87 Olds 98 with 130,000 miles. When I am driving in OD up a hill, the transmission will start to chatter. I can usually relieve it by shifting back to Drive. However, it even chatters some in Drive. I changed the transmission fluid about 12,000 miles ago but the fellow simply flushed and did not change the filter. I have tried a couple of the additives but they don't seem to help. Any advice will be appreciated.
- posted
18 years ago