If you are askin g this question, I highly recommend you take the transmission to the shop and pay to get it fixed. To find a diagram, you will probably have to buy the official Pontiac auto transmission service repair manual from the dealer, unless there is a decent 3rd party book out - I doubt that.
hell no
4T65-E 4-speed automatic transmission
Dexron III automatic Transmission fluid should be used in a 2000 Pontiac Grand AM. This can be picked up at almost any general store.
There is no drain plug assuming it is an automatic transmission it is drained when removing the transmission pan and changing the transmission filter.
My 1997 GTP transmission cost $2000 to get re-built. : (
Remove transmission oil pan Replace fluid, filter, and gasket
Most newer automatic transmissions do not use a dipstick.
standard (shift gear) 5 speed Automatic 4 speed
broken transmission mount there is a front left, rear left and a center mount
A automatic has a flex plate and a tork converter.. A manual trans has flex plate and fly wheel...
if you have waited until you have transmission problems to change the fluid, you have waited too late...........
Assuming you have an automatic (most common for this model of car), your transmission is a General Motors 4T45E. If it's a manual (which is a bit unlikely), it'll be a Getrag F23.