you can buy a book at auto zone usually kept directly under the counter for every vehicle make and model that will tell you where to find everything on that vehicle and how to fix things on it step by step.
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It is at the rear of the motor. Follow the largest cable from the battery(RED CABLE) to the back of the motor and it will end at the starter.
The starter solenoid is on the side of the starter motor. It's the small cylinder that wires go to.
The fusible link on a starter motor is designed to prevent too much current from reaching the starter. This can lead to permanent damage for even total failure.
Assuming it is the 4.0 motor (you didn't say), it is right under the oil filter.
The starter motor is at the rear of the engine.
It starts the motor.
You can find the starter on the right hand side of the motor. The starter will be near the back of the motor. You can follow the positive battery cable to the starter.
There is a fuse that protects the HVAC (Heating, Ventilation, Air Conditioning) blower motor circuit.
Which connects starter motor and the battery temporary to get sufficient power to starter motor.
the starter motor is what physically turns the flywheel to crank the engine. the solenoid is an electrical switch, that when activated, sends the power to the starter motor.
Check the thick negative wire going from the battery to the body and the engine block and make sure it is securely attached. The thick positive wire from the battery is a fusible link. Check there is 12v at the starter motor end. If no volts, change whole wire for a new fusible link from a motor factor.