When the ignition key is turned a clicking noise is heard.

If your 2007 Chevy Impala is making a clicking noise before the key is even inserted into the ignition, it could be caused by a few different issues. Some potential causes include:

1. Faulty starter motor: The starter motor is responsible for starting the engine when the ignition is turned on. If the starter motor is faulty or has worn out, it may make a clicking noise as it tries to engage with the flywheel.
2. Loose or damaged starter motor relay: The starter motor relay is an electrical component that sends power to the starter motor when the ignition is turned on. If the relay is loose or damaged, it may cause a clicking noise.
3. Low battery: If the battery is low on charge or has gone bad, it may not have enough power to start the engine, causing a clicking noise.
4. Other electrical issues: There may be other electrical issues, such as a loose connection or a problem with the ignition switch, that are causing the clicking noise.

To determine the cause of the clicking noise, it is recommended to bring your vehicle to a mechanic or a dealership for further diagnosis and repair. They will be able to test the starter motor, battery, and other electrical components to determine the source of the problem and recommend the appropriate repairs.

dead battery --boost vehicle and either turn off vehicle or start it --or if cant boost it theirs a plug under ignition switch on column insert a small screw driver or something similar and pushrelease and turn key

The ignition switch is not reading the chip in the key, Triggering the anti-theft mode in the ECU.

Dodges have a gear reduction in the starter, usually. It could be wearing out. Have it checked out at a rebuild shop.

Your ignition switch is going bad. The strange noise is the starter remaining engaged and locked to the flywheel. Your best bet is to have the starter tested at your local auto parts store, to deduce that it is not, in fact, your starter.

eather belt tenchiner is going out or get some belt dresing and spray on your belt good luck

Sounds like a fouled battery or bad connection to the battery.

the noise you heard in the rear was the electric fuel pump working but it sounds like you have an electrical issue check your wire harness for areas that wires chaffed on metal and cause break in the electric current some known areas are inbetween the radiator and the transmission down towards the tranny pan also check fuse panel might have a loose fuse

check your key remote if it is not programmed the alarm will go into the kill switch mode and will not allow you to start your engine Having the same trouble with one of my keys I haven't found a way to reprogram it without calling dealer and paying a chunk.