Yes if it is stuck closed.
Yes, a starter solenoid can drain a battery. When a starter solenoid is not working properly it can actually keep rotating the starter after the car's ignition is turned off. Since it requires a battery to actuate the starter, the battery will eventually be drained of power.
Yes if it is stuck closed.
If the defect is causing a parasitic drain, yes.
Assuming you are referring to the starter solenoid, the easiest way to find it is by folowing the positive battery cable from the battery. The cable goes from the battery to the solenoid and then continues from the solenoid to the starter.
starter solenoid is on the inside of the fender twards the cab from the battery follow the positive battery cable at the end will be the solenoid
Starter solenoid, typical position for Fomoco cars.
Either the battery cables are dirty, battery is not fully charged, or the solenoid is stuck.
No, a bad coil will not drain the battery.
Check for a bad fusable link at alternator
The starter solenoid is mounted directly to the starter. Just follow the positive battery cable from the battery, it will lead you right to the starter solenoid.
I assume you are talking about the starter solenoid: Follow the positive battery cable from the battery - the other end will be connected to the starter solenoid.
on the firewall behind the battery.