Common symptoms and causes of a bad or failing engine starter and how to troubleshoot it.

Symptoms of a Bad Starter and How to Test It
Engine Does Not Turn Over
Slow Crank
Unusual Noises (clinking, grinding, and whirring)
Intermittent Start Problems
Starter Free Spin

Possible Causes of a Bad Starter
Bad or dead battery
Battery terminals corroded or
Cables have a bad connection to the starter
Bad starter relay
Bad Starter Solenoid
Bad neutral safety switch
Bad Starter

How to Troubleshoot the Starter
Test Battery
Check Battery Cables
Test Battery with a multimeter (12.40 volts or higher is good).
Battery voltage should not drop below 9 volts on start.
Test starter solenoid is getting voltage.
Do a voltage drop test.

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