Weird buzzing noise after jump starting a car
A buzzing sound often comes from around the radiator fan after a jump start and slows down as the car warms up. This noise can persist and occur right after startup, alongside issues like rough idling.
What people tried
Every workaround mentioned in the threads below. We haven’t tested any of them — and nobody here is claiming they worked.
- 1trying to locate the source or general area of the noise
In their words
Unedited, most upvoted first, each linked to the thread it came from.
“Car died and when i jumped it this weird noise started. Any idea what im hearing? "I'm really trying to keep this car alive"”source ↗
“Yea the buzzing sound. It sounds like it coming from around the radiator fan. It does it often right after startup but slows down as the car warms up. Never fully goes away.”source ↗
“Car won’t start jumped starter with screw driver, now it idles all over the place when first start up it’s a 2012 Nissan Sentra 2.0”source ↗
“Car wouldn’t start we were in parking lot had to get home jumped with screw driver now code on and car runs really rough”source ↗
Where this came up
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