What is the problem on a 2000 Monte Carlo if you turn ignition it clicks and then do anything else after that until let sit while or reconnect battery?

The most common cause of this problem is a faulty ignition switch. The ignition switch is responsible for sending power to the starter solenoid, which in turn engages the starter motor and cranks the engine. If the ignition switch is faulty, it may not be able to send power to the starter solenoid, which will prevent the engine from starting.

Another possible cause of this problem is a faulty starter solenoid. The starter solenoid is responsible for engaging the starter motor with the flywheel. If the starter solenoid is faulty, it may not be able to engage the starter motor, which will prevent the engine from starting.

Finally, it is also possible that the problem is caused by a faulty battery. If the battery is not providing enough power, it may not be able to power the starter motor and engage the starter solenoid. This will prevent the engine from starting.

To troubleshoot this problem, you will need to determine which component is faulty. You can do this by using a multimeter to test the voltage at the battery, the ignition switch, and the starter solenoid. If you find that one of these components is not receiving power, you will need to replace it.