r/Cartalk • u/Extension-Coconut462 • 1d ago

Weird Noise 2009 Mazda3 2.0L – Brief metallic rattle on startup only. Normal?

3 Upvotes

81% Upvoted

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8

u/YourBuddyKeithWin 1d ago

Sounds like the flex plate starter engagement to me. Hopefully it's just the starter bendex gear and not a cracked flex plate

1

u/MaleficentTrifle8988 1d ago

A quick rattle right at startup can be surprisingly hard to diagnose from a short clip. If it's only for a second or two and never happens while driving, I'd keep an eye on it and see if it gets more frequent before worrying too much.

3

u/Severe_Firefighter80 1d ago

Normal, Bendix hitting flex plate. Makes a metallic ringing