03 monte carlo wont start... turn key to AC position, hear electrical motor sound never heard before... turn to ON position, all gauges drop to zero

Is the theft light on the dash lit ? If so turn the key onto the run position till the theft light goes out, about 10min. Turn key off for a few min. then start , hope that helps. If not have to have it checked for codes in the (BCM) body control module or the (PCM) powertrain control module !

If it is coming from the engine compartment it may be the clutch on the compressor.

Same thing is happening right now on a 2002 Monte Carlo. When the key is simply turned to ON, all of the lights on the dash starts blinking rapidly. When I attempt to turn the car over, there is no CLICK or anything from the engine - nada. Ignition turns and the dash goes dark, as if it wants to TRY to start - but nothing happens.
But, when I press the brake pedal (and the key is just sitting in the ON position), all of the blinking lights stops flashing and just stay lit. Therefore, I changed the brake switch, thinking it might make a huge difference. Didn't really help at all. When the key is turned, you can hear the fuel pump engage and everything seems to be ready to go. But, the car won't start (it will only start when it feels like it)...hit and miss, pretty much.
Does anyone know the TRUE solution to this issue? Does the ignition need to be replaced in order to get this car to crank over

If you are driving the car and it wont start after driving awhile. Do a wiggle on the CKP (crank position sensor) this sensor is located at the front main engine pulley, I am seeing a lot of loose male to female connection shut car off.

G'day mate there is also a main fuse with high amp fuses located near battery check each fuses by pulling out and checking for condition ie loose wobbly also weird as it may seem i have found a number of vehicles in which the ants have made a nest in the fuse box/s, dont know why just found it od , what they do is ends up with tracks to earth from nest for positive curciut, try that.

It is likely the fuel level sending unit. I had a customer with an 03 Monte Carlo that the pump went out and the fuel gauge hadn't worked in about a year. We replaced the fuel pump module and it took care of both problems. I believe the sending unit is available separately from the complete module.

starter is bad

There is a possibility that the battery is bad and not making the fuel pump work properly or to it's right pressure. Cna you hear the fuel pump come on when you turn the ignition switch to the on position... Have someone unscrew the fuel cap and listen near the hole you put fuel in to see if they hear a humming or vibrating sound when you turn the key to the on position.... If you hear the fuel pump come on Check the battery... It might have good voltage but the amps might be week... It could be the battery...

well i would deffinatly have the battery checked out because more than likly if you left the key in the on position the battery is dead let me know if this helps

I had this same problem with my 2002 Monte. It is a very cheap fix about $100(If you do not got to the dealer $800) The car thinks that you are trying to steal it so you have to turn the key in the on position until the security light goes off and when the light goes off dont try to start it. Turn the key to the off position and then try to start it. It should take about ten minutes. I know its frustrating cuz I've been there.