I just performed another coolant change on my 2001 Pontiac Grand Prix
GTP and took pictures of the process this time to create a guide to
The procedure should be similar for all GM cars with the 3800 Series
II 3.8L V6 engine including the Buick Regal, Chevy Impala, Monte
Carlo, and Bonneville.
Here's the guide -
I hope someone finds it to be useful.