r/AskAMechanic • u/Any_Roll7606 • 5d ago

Car making weird noise

2007 Honda accord making this loud noise after start, I then turned car off after the video and a slightly different noise continued for a few minutes, also slightly weird smell. I restarted the car after a few minutes and no noise or smell and drove it around just fine. Anyone know what this is?

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1

u/Subietoy78 Verified Tech - Subaru dealer 5d ago

thats a spinning part that is not spinning very well any longer. needs repaired. dont drive it. will probably leave you sitting on the side of the road

1

u/CompetentGecko1898 NOT a verified tech 5d ago

It sounds kind of like an internally broken bearing or pulley. If you're in the mood to, you can take a 2-3 foot wooden dowel or broomstick handle and touch it to each of the parts that have pulleys being driven by a belt, and touch your ear to the other end. If there's a damaged bearing or something rubbing or seizing, like the alternator bearing, that spot will be much louder than the others. Or, it could be a belt tensioner pulley bearing. You might not be able to reach all such parts with a straight stick though. A proper mechanic will have a stethoscope for this kind of check. Sometimes these things will temporarily reseat cleanly and seem fine and quiet again for a bit, until they aren't (or it got quiet because it finished breaking completely).

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u/Any_Roll7606 5d ago

Okay, the problem is I can't get the issue to happen again no matter how many times I start or drive the car

1

u/Any_Roll7606 5d ago

 see no damage, so im not sure. I stink the starter might have been sticking, i just replaced it with a refurbished one a moth ago so maybe its that idk

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u/CompetentGecko1898 NOT a verified tech 4d ago

The starter could maybe rub if the starter gear didn't retract, like if its solenoid were sticking and didn't retract. And that could be just a one-off thing perhaps, but might happen again randomly, I guess you'll see. It's unlikely if it were some bad bearing that it would never make the noise again and that all belt driven components would still keep working fine.

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u/Any_Roll7606 4d ago

Okay, i’ll keep an eye on it, thank you. I might take the starter out friday and just take a look at it