I have a 2002 chevy impala,drivers side windshield works great,the passenger side doesn't work at all,help!

The switch is a contact type. When you move the switch it complete the circuit by connect the two contacts points. After some time the switches wear out simply replace the switch.

Order a new switch and replace.

There is a motor that controls the blend door for the driver's side, that may be faulty, or you may have a stuck or broked dr side blend door.You can access this part by removing the dr side underdash panel, and the dr side knee bolster.

135 is on the back and 246 is on the front. From passenger side to drivers side. Number 1 cylinder is the one under the alternator.

I assume that you are talking about your air conditioning. The passenger side blows cold and the drivers side is warm. I had the same problem on a couple of my cars, including my 2002 Impala.
I also assume that you know how to use the climate controls for driver vs. passenger.
You need some freon. It may not need very much... maybe 8-12 ounces.
if you're semi-skilled, you can try it yourself with a kit from the parts store. The dealer or shop will charge you at least $125 and they will look for the leak.
It sounds like you have a slow leak, and that could be tough to find.

There is a bar that connects both your windshield wipers together check that to see if it is broke or has come unscrewed. Should be underneath the hood upagainst the firewall.

replace right temp door actuator under passenger side of instrument panel

Check the radio fuse? Box is drivers side end of dash(drivers door open)or pass side end of dash(passenger door open)
police models have a connection for the speakers (passenger floorboard under floor mat) to connect the speakers to the police radios.
If they had the speakers connected to their radios,they may have unhooked them and not connected them back to the radio.
The wires are brown,grey,blue and light blue.All into a blue connector.

I used google to do a search for this and typed in "instructions replace side mirror". There is a guide on e-bay that pops right up and it gives you pretty detailed instructions. They are not vehicle specific but should give you all the information that you need. The web page says How to replace a broken side mirror on your car-associated content. I hope this helps, it looked like it had plenty of great information.

heater core is leaking into floor