The seal around your back door is not working properly. This is allowing the rain to seep in through the seal and run down the inside of the door.
It is located under the drivers side floor assessable from under the vehicle.
Bottom front drivers size
It is on the bottom of the radiator on the drivers side.
bad heating core
on the floor between the drivers seat and door
The 2001 Pontiac Grand Am 2.4 liter engine PCV valve is located on the firewall. The valve will be on the drivers side firewall in the engine compartment.
the fuel filter on your grand prix is located on the drivers side right beside the fuel tank. hope this helps, brewski It is located under the drivers side floor acessable from under the vehicle. For pics and instructions check out http://www.pfyc.com/supportfiles/gasfilter/ hope this helps. "G"
drivers side bottom of radiator.
My 94 Pontiac grand am se quad 4 the clutch is real loose and 1st gear is slipping
this is a GT with floor shift and 3800 engine
yes it is on the drivers door under the arm rest
the flasher is located in the steering coloumn. you have to remove the kick panels on the drivers side to get at it