"wiring diagram of a ignition switch on a 2005 chevy silverado 1500hd"

Check the transmission range or gear position switch on the transmission body. It is prone to corrosion.

hi Eric.
this link should help you out.
wiring schematics wiring diagram for 2005 chevy cobalt ignition coil pack...
if not try this one might help you find out.

wiring schematics wiring diagram for 2005 chevy cobalt ignition coil pack...

Should be in the box in the engine compartment marked F/PMP.
The diagram should be in your owners manual.

It sounds crazy but it worked great for me put the key in the ignition and tap it LIGHTLY with a hammer. I did that key turned and hasn't stuck since.

Do you know what a automotive electrrical wiring diagram is ? How to use a DMM- digital multi-meter ? Pick one system an diagnose an you will probably fix all the syatems . Voltage drop testing . Voltage or ground side problem .
Mastering Voltage Drop Testing with Pete Meier and Jerry Truglia
Free wiring diagrams http://www.bbbind.com/free-tsb Enter vehicle info. year , make , model an engine size. View wiring diagrams an test the circuits.

ur acuator doors are bad usually happens when battery goes bad or is unhooked google sparkys answers and theres how to and pictures thats how i fixed my 03 1500hd also until i found out how to fix id go to the fuse box under hood while truck was on and pull ac fuse wait 10 sec replace and it usually blow out front vents until i turned truck off if u recently had battery go bad or unhooked look at recalibration on sparkys answers its simple and might be all u need

yes this is pretty comon should be around your oil filter area

Check small wire at starter for 12volts with 12v test light. If no power then...check fuses(blown or MISSING) and move gear shift to neutral and see if it cranks. Could be defective or incorrectly adjusted park neutral switch.

the problem is that your instrument cluster has a short circuit and it will need to be replaced you can try a used one but mileage will be off from yours you will have to remove the trim around the cluster then there are 4 screws holding cluster in place

sounds like a bad line on compressor