Starter Motor Install
Recently encountered a no crank issue on my 91 GMC Suburban and couldn’t get it to start. When trying to turn the key over you could here one click, assuming a bad starter.
I purchased a replacement Duralast starter motor, installed, and ensured all cables (positive battery cable, ground cable, and small safety switch cables) weee connected to the starter motor solenoid terminals. Yet, nothing happens when I attempt to start the vehicle - we have power but no clicking or signs of an attempted start. Crawling under the vehicle while someone attempts to start it, I can hear a hum coming from the motor, so I assume that is getting power. However, motor gear is not spinning and engaging the flywheel.
Is it safe to assume that I managed to install a bad starter out of the box or are there other things worth checking?