What does 03 vibe kill switch look like - 2003 Pontiac Vibe

Have you had it checked for diagnostic trouble code's ? Why would you change a sensor without checking code's am viewing sensor data parameters on a professional scan tool ? If you don't know what i'm talking about ,your best bet , take it to a qualified repair shop.

All these have different fuses, except a main fuse that supplies power to the different fuses. Check those first. Check power from the battery to the fuse panel. Could be a bad fuse panel. If you check voltage with a volt meter, does it show any voltage at the fuses? If 0, then look to the wires first. If they show varying voltage(like2,3,4.5,or 6) suspect the fuse panel. The voltage should be 0 or battery voltage.

Cylinder #4 misfire, can be wires or plugs usually

No it is not a short, mine does the same thing. It seems the headlight/turnsignal switch has some issue that closes the contacts for the headlights when the temperature goes down around freezing. I don't want to replace the switch as it won't be cheap but I did find that flipping the high beams switch to "on" and leaving it in that position before turning the engine off for the night will prevent the lights from coming on by themselves and discharging the battery. Really!

ac clutch relay; $11 at rockauto.com

the ground is through the compressor body
unless you have gotten pressure readings , the gas is not enough or excessive It would appear that you added the gas by the can and not by pressure gauges
there are 2 pressure switches in the system
one is for excessive pressures and the other is for too low pressures and both switch of the compressor action
take it to an ac specialist shop and have it diagnosed and gassed properly

hi this is located on the right hand side of the engine on top of the transmission, the best way to locate it is to follow the + lead from the battery and on the end of that will be the starter motor....hope this helps

the axles are held into the trans with internal "SIR" clips, they just pull out, you need to pull straight out in a quick snapping motion, they can be very difficult to remove

ABS self testing.

Your going to need a impack gun, various sucket and a spring compressor. 
Need to jack up the car and remove wheels. Re-move two lower bolts Re-move three upper strut mounts Re-move rear Rear strut assembly
Now the hard part Compress the springs Remove the strut nut holding the strut mount. note replace these with new ones. Take the springs out and replace the sturt.
Follow procedure in revers and have a friend to help.  Good luck and hope this helps