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Old 01-24-2024, 05:50 PM   #5
hjewell2
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Join Date: May 2011
Location: mich
Posts: 655
Re: Loud electric humming noise when starting engine

Quote:
Originally Posted by RustyPile View Post
That's a flawed assumption.. Never guess and/or assume.. Everything is suspect until proven otherwise.

The solenoid's purpose is two-fold.. To bridge the contacts between the battery cable and starter field windings. The second function is to move the bendix along the starter shaft until it engages the flywheel. If the starter is spinning, the solenoid is doing its job.

Without actually hearing the noise, I'm thinking the starter bendix is going out, allowing the starter to "freewheel"..
Bingo!
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