Why a Starter Won't Engage?

A weak click means there is a loose connection. Check the wires that connect to your starter solenoid and tighten them. In the case of broken wires, electrical current from your battery will not reach the starter. If the wires are in place and still your car will not start, then you must replace the starter solenoid.

What causes a starter to spin and not engage?

Starter spins but doesn't engage. Clicking sound : you hear it spinning with a click sound before it starts spinning. No grinding sound. The mechanism to engage the flywheel is faulty, probably it is seized, or battery doesn't have enough power to make the solenoid fully pull the mechanism (check battery charge).

How do you fix a starter that won't spin?

1. Try jumping the car, if it starts battery is probably bad. Let the alternator charge the battery up and then turn it off and jump it again, if it still is slow to start, the starter is probably dying.