Home Menu

Site Navigation


Toyota 4Runner Forum - Largest 4Runner Forum > > > Battery almost died while at stop light, now I'm hearing a dull buzzing sound
User Tag List

Reply
 
Thread Tools Rate Thread Display Modes
Old 12-19-2022, 09:47 AM #1
OpenYota's Avatar
OpenYota OpenYota is offline
Member
  
Join Date: Jul 2020
Location: Atlanta
Posts: 84
OpenYota is on a distinguished road
OpenYota OpenYota is offline
Member
OpenYota's Avatar
 
Join Date: Jul 2020
Location: Atlanta
Posts: 84
OpenYota is on a distinguished road
Battery almost died while at stop light, now I'm hearing a dull buzzing sound
My battery has been dying for a little while but when I was at the stop light the other day my battery light came on and the radio turned off but the 4runner didn't shut down.

I turned off the lights, radio, and AC and went straight to the store and bought a new battery.
Only now I have a dull humming/buzzing sound coming from the engine bay.
I can hear it when it's in park and it slightly gets louder when I accelerate/reverse and can hear it adjust in volume when the AC compressor kicks on.
Is it the alternator that needs replacing now?
__________________
2001 SR5 4WD
OpenYota is offline   Reply With QuoteReply With Quote
Old 12-19-2022, 10:13 AM #2
jgue467's Avatar
jgue467 jgue467 is offline
Senior Member
  
Join Date: Sep 2011
Location: Austin, Texas
Posts: 3,151
jgue467 is just really nice jgue467 is just really nice jgue467 is just really nice jgue467 is just really nice jgue467 is just really nice
jgue467 jgue467 is offline
Senior Member
jgue467's Avatar
 
Join Date: Sep 2011
Location: Austin, Texas
Posts: 3,151
jgue467 is just really nice jgue467 is just really nice jgue467 is just really nice jgue467 is just really nice jgue467 is just really nice
Who knows - why not have it tested?

Any autozone or like place will test the battery and charging system for FREE.
__________________
2001 Limited 4WD - 346+K - SunfireRed\Thunder Cloud; - 265/75/16 Michelin A/T2s - Fat Pat's 1.5" BL - StopTech ANGLED rotors - In series 699 trans cooler, New Yota1 transmission, All new OEM suspension front to rear.
jgue467 is offline   Reply With QuoteReply With Quote
Old 12-19-2022, 11:20 AM #3
19963.4lsr5 19963.4lsr5 is offline
Elite Member
  
Join Date: Aug 2013
Location: Stouchsburg PA
Posts: 5,319
19963.4lsr5 is a splendid one to behold 19963.4lsr5 is a splendid one to behold 19963.4lsr5 is a splendid one to behold 19963.4lsr5 is a splendid one to behold 19963.4lsr5 is a splendid one to behold 19963.4lsr5 is a splendid one to behold 19963.4lsr5 is a splendid one to behold
19963.4lsr5 19963.4lsr5 is offline
Elite Member
 
Join Date: Aug 2013
Location: Stouchsburg PA
Posts: 5,319
19963.4lsr5 is a splendid one to behold 19963.4lsr5 is a splendid one to behold 19963.4lsr5 is a splendid one to behold 19963.4lsr5 is a splendid one to behold 19963.4lsr5 is a splendid one to behold 19963.4lsr5 is a splendid one to behold 19963.4lsr5 is a splendid one to behold
I had a diode block go bad and the more of a load the Alt had the higher and louder the whine got.

What’s your voltage running at.

My scangauge shows system voltage but you can buy a volt meter that plugs into the cig lighter. I have two types. One is just a voltmeter and the other is a usb charger that shows voltage when not in use or charging current.


Sent from my iPhone using Tapatalk
19963.4lsr5 is offline   Reply With QuoteReply With Quote
Old 12-28-2022, 01:09 PM #4
OpenYota's Avatar
OpenYota OpenYota is offline
Member
  
Join Date: Jul 2020
Location: Atlanta
Posts: 84
OpenYota is on a distinguished road
OpenYota OpenYota is offline
Member
OpenYota's Avatar
 
Join Date: Jul 2020
Location: Atlanta
Posts: 84
OpenYota is on a distinguished road
Update: The alternator tested good and is running around 14.2 volts.

Still am unable to identify what the whine could be
__________________
2001 SR5 4WD
OpenYota is offline   Reply With QuoteReply With Quote
Old 12-28-2022, 01:16 PM #5
19963.4lsr5 19963.4lsr5 is offline
Elite Member
  
Join Date: Aug 2013
Location: Stouchsburg PA
Posts: 5,319
19963.4lsr5 is a splendid one to behold 19963.4lsr5 is a splendid one to behold 19963.4lsr5 is a splendid one to behold 19963.4lsr5 is a splendid one to behold 19963.4lsr5 is a splendid one to behold 19963.4lsr5 is a splendid one to behold 19963.4lsr5 is a splendid one to behold
19963.4lsr5 19963.4lsr5 is offline
Elite Member
 
Join Date: Aug 2013
Location: Stouchsburg PA
Posts: 5,319
19963.4lsr5 is a splendid one to behold 19963.4lsr5 is a splendid one to behold 19963.4lsr5 is a splendid one to behold 19963.4lsr5 is a splendid one to behold 19963.4lsr5 is a splendid one to behold 19963.4lsr5 is a splendid one to behold 19963.4lsr5 is a splendid one to behold
Quote:
Originally Posted by OpenYota View Post
Update: The alternator tested good and is running around 14.2 volts.

Still am unable to identify what the whine could be

Remove a belt and start the engine and see if removing anyone makes the noise go away.


Sent from my iPhone using Tapatalk
19963.4lsr5 is offline   Reply With QuoteReply With Quote
Old 12-28-2022, 06:49 PM #6
Bad Luck Bad Luck is offline
Senior Member
  
Join Date: Feb 2019
Location: Hot Springs, AR
Posts: 4,410
Real Name: Patrick
Bad Luck has a reputation beyond repute Bad Luck has a reputation beyond repute Bad Luck has a reputation beyond repute Bad Luck has a reputation beyond repute Bad Luck has a reputation beyond repute Bad Luck has a reputation beyond repute Bad Luck has a reputation beyond repute Bad Luck has a reputation beyond repute Bad Luck has a reputation beyond repute Bad Luck has a reputation beyond repute Bad Luck has a reputation beyond repute
Bad Luck Bad Luck is offline
Senior Member
 
Join Date: Feb 2019
Location: Hot Springs, AR
Posts: 4,410
Real Name: Patrick
Bad Luck has a reputation beyond repute Bad Luck has a reputation beyond repute Bad Luck has a reputation beyond repute Bad Luck has a reputation beyond repute Bad Luck has a reputation beyond repute Bad Luck has a reputation beyond repute Bad Luck has a reputation beyond repute Bad Luck has a reputation beyond repute Bad Luck has a reputation beyond repute Bad Luck has a reputation beyond repute Bad Luck has a reputation beyond repute
Quote:
Originally Posted by OpenYota View Post
Update: The alternator tested good and is running around 14.2 volts.

Still am unable to identify what the whine could be
Start removing belts and starting the engine to see if the noise goes away. Or get a mechanic’s stethoscope to use.
__________________
2000 SR5 V6 Manual 4WD https://www.toyota-4runner.org/3rd-g...biography.html
2000 Limited V6 Auto E-Locker Sold 3/2022
Bad Luck is offline   Reply With QuoteReply With Quote
Reply

Tags
battery , hear , light , stop , turned

« Previous Thread | Next Thread »

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Battery Light started blinking then the car died and now car won't start! robaroni 4th Gen T4Rs 7 04-05-2017 10:25 PM
Droning sound...hearing impaired 4Runner owner Anonymous4Runner 4th Gen T4Rs 2 03-04-2017 12:35 AM
Battery died...now TPMS light is on Flyer Engines / Suspension / Wheels / Tires / Audio / Accessories 3 12-14-2016 11:42 PM
Before I take it in. light buzzing sound when braking jtex 5th gen T4Rs 4 08-18-2015 04:27 PM
Sound I'm Hearing at Low Speeds adoihcj 5th gen T4Rs 22 01-17-2011 09:03 PM

» Follow Us!!!
» Log in
User Name:

Password:

Not a member yet?
Register Now!
Powered by vBadvanced CMPS v3.2.2

All times are GMT -4. The time now is 02:42 PM.

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2024 DragonByte Technologies Ltd.
Feedback Buttons provided by Advanced Post Thanks / Like (Lite) - vBulletin Mods & Addons Copyright © 2024 DragonByte Technologies Ltd.
User Alert System provided by Advanced User Tagging (Lite) - vBulletin Mods & Addons Copyright © 2024 DragonByte Technologies Ltd.
***This site is an unofficial Toyota site, and is not officially endorsed, supported, authorized by or affiliated with Toyota. All company, product, or service names references in this web site are used for identification purposes only and may be trademarks of their respective owners. The Toyota name, marks, designs and logos, as well as Toyota model names, are registered trademarks of Toyota Motor Corporation***Ad Management plugin by RedTyger
 
Toyota - 4Runner . org Forum Terms and Privacy Policy
Copyright © 2020