How do you know if your starter solenoid is bad?   Quick Answer
It is easy to tell a starter solenoid is going bad because the
engine makes no noise when turning the key in the ignition. The
solenoid is a device that charges and directs current through
the starter, meaning a lack of response requires replacing that
part. The solenoid is mostly present only in Ford vehicles.
Know More How do you know if your starter solenoid is bad?
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Full Answer  The starter solenoid directs power through the
engine and helps reinforce the charge in a starter component.
Insufficient flow of electricity results in a lack of response
from the engine, causing no sound or response when users try to
start a car or truck. As the solenoid goes bad, drivers notice
that there is an increasing reluctance from the engine to turn
over. Subsequent tries show the car or truck makes a loud
clunking or banging noise but does not start.  The solenoid is a
mounted above the star