[97GreenGTP]

I have a 97 Grandprix with 213,000 miles. So far so good. Lately, I have made couple of observation about my transmission.

1. On cold morning, the converter doesn't seem to lock for the first few miles. So the engine runs at somewhat higher rpm. Then once car warms up, then it runs fine.

2. After driving 100 or so miles, once I get into a city or have to slow down and the transmission shifts down, then it shifts up with jerks. The transmission also whines and once the converter locks, then it behaves normally.

Are there some repairs that I have to be aware of that are coming my way?

Thanks in advance.