2000 Grand AM SE

Hello everyone!
Have lots of questions and need some assistance....
My 2000 Grand AM SE seems to have become a little tempermental lately. Sometime last year both my front windows would alternate working or quit all together and then start working again. Finally, my driver's side window quit. There is still power going through the switches on the main console and the passenger side console. Is the motar burned out? or Could it be a relay switch and/or fuse?
Also, my gas guage is no longer reading properly. Could that also be a fuse or do I need to replace the sending unit?
And, finally, on occasion, when I turn the key to start the car, there is silence. If I pump the gas pedal once or twice and then turn the key, the car starts. What could this be? Do I need to replace the fuel filter? Could it be bad gas?

Also, does anyone know if there is another fuse box besides the one on the driver's side? If there is, where is it located?

There is another fuse box on the passenger side and another under the hood

there is a fuse box under the hood right beside the airbox

Sounds like a whole lot of electrical problems and with so many they sound to all be corrosion related.

I'm a be real with you...I have a 2000 SE also and I've been having a few probs that are electrical also....i suggest you go ahead and drop that money for an electrical diagnostic test and they'll tell you everything that's wrong with the car...then I also suggest going to any GM dealership, autozone, advanceauto, or any car parts dealership and bu y the manual for your car that explains your car in depth...that way when you find out what's wrong, you can check the book adn see whether or not you have the ability to do it yourself or see if someone else can edo it that you know....rather than a facilty that costs bookoo money.