User Tag List

Reply
 
Thread Tools Rate Thread Display Modes
Old 03-17-2020, 06:11 PM #1
ctoombs ctoombs is offline
Junior Member
 
Join Date: Jun 2015
Location: Los Angeles
Posts: 29
ctoombs is on a distinguished road
ctoombs ctoombs is offline
Junior Member
 
Join Date: Jun 2015
Location: Los Angeles
Posts: 29
ctoombs is on a distinguished road
Help diagnosing squeal/chirp

Hi all,

Trying to diagnose a chirp that seems to be coming from my accessory belts.

Captured a video here and hoping y’all can help point me in the right direction.

Belts are tight and tensioned correctly, alternator was replaced recently. Timing belt and water pump replaced not long ago either.

My initial suspicion is an idler going bad but not sure what one or if that’s the case for sure

Video is linked belowStrange squeak 99 4Runner - Album on Imgur
ctoombs is offline   Reply With QuoteReply With Quote
Old 03-17-2020, 10:20 PM #2
plcfcng's Avatar
plcfcng plcfcng is offline
Member
 
Join Date: Apr 2017
Location: Southern California (please don't hold it against me)
Posts: 417
Real Name: michael
plcfcng will become famous soon enough plcfcng will become famous soon enough
plcfcng plcfcng is offline
Member
plcfcng's Avatar
 
Join Date: Apr 2017
Location: Southern California (please don't hold it against me)
Posts: 417
Real Name: michael
plcfcng will become famous soon enough plcfcng will become famous soon enough
When does the noise happen? At start up or other time
plcfcng is offline   Reply With QuoteReply With Quote
Old 03-17-2020, 10:21 PM #3
ctoombs ctoombs is offline
Junior Member
 
Join Date: Jun 2015
Location: Los Angeles
Posts: 29
ctoombs is on a distinguished road
ctoombs ctoombs is offline
Junior Member
 
Join Date: Jun 2015
Location: Los Angeles
Posts: 29
ctoombs is on a distinguished road
At idle once warmed up all the way.
ctoombs is offline   Reply With QuoteReply With Quote
Old 03-17-2020, 10:53 PM #4
spartacus's Avatar
spartacus spartacus is offline
Senior Member
 
Join Date: Mar 2010
Location: denver
Posts: 3,010
spartacus has much to be proud of spartacus has much to be proud of spartacus has much to be proud of spartacus has much to be proud of spartacus has much to be proud of spartacus has much to be proud of spartacus has much to be proud of spartacus has much to be proud of spartacus has much to be proud of
spartacus spartacus is offline
Senior Member
spartacus's Avatar
 
Join Date: Mar 2010
Location: denver
Posts: 3,010
spartacus has much to be proud of spartacus has much to be proud of spartacus has much to be proud of spartacus has much to be proud of spartacus has much to be proud of spartacus has much to be proud of spartacus has much to be proud of spartacus has much to be proud of spartacus has much to be proud of
Sound to me like a'pulley bearing going out or misaligned. Any work done on the engine recently? To me it seemed louder near the fan clutch pulley. take one belt off at a time and see if you can narrow it down.
spartacus is offline   Reply With QuoteReply With Quote
Old 03-17-2020, 10:55 PM #5
shadow247's Avatar
shadow247 shadow247 is offline
Senior Member
 
Join Date: Feb 2012
Location: DFW, TX
Posts: 2,056
shadow247 is just really nice shadow247 is just really nice shadow247 is just really nice shadow247 is just really nice shadow247 is just really nice
shadow247 shadow247 is offline
Senior Member
shadow247's Avatar
 
Join Date: Feb 2012
Location: DFW, TX
Posts: 2,056
shadow247 is just really nice shadow247 is just really nice shadow247 is just really nice shadow247 is just really nice shadow247 is just really nice
Quote:
Originally Posted by ctoombs View Post
At idle once warmed up all the way.
These engines are really nice because they have a belt for each accessory, so you can easily troubleshoot the noise.

Just start removing the belts 1 by 1 until the noise goes away.

If you get all 3 belts off, and it's still there, you know it's something behind the timing cover.

Easy peasy!
__________________

The 4Runner Show
shadow247 is offline   Reply With QuoteReply With Quote
Old 03-17-2020, 11:13 PM #6
plcfcng's Avatar
plcfcng plcfcng is offline
Member
 
Join Date: Apr 2017
Location: Southern California (please don't hold it against me)
Posts: 417
Real Name: michael
plcfcng will become famous soon enough plcfcng will become famous soon enough
plcfcng plcfcng is offline
Member
plcfcng's Avatar
 
Join Date: Apr 2017
Location: Southern California (please don't hold it against me)
Posts: 417
Real Name: michael
plcfcng will become famous soon enough plcfcng will become famous soon enough
Smile

A easier way is to use a spray bottle with windex start the engine spray each belt one at a time and listen if it’s a pull-up noise it will quite down for a bearing a section of Heater hose may help locate the noise or as mentioned above remove each belt one at a time. Hand spin each item. The ac idler pulley can be repacked with grease in a pinch
plcfcng is offline   Reply With QuoteReply With Quote
Old 03-18-2020, 08:05 PM #7
ctoombs ctoombs is offline
Junior Member
 
Join Date: Jun 2015
Location: Los Angeles
Posts: 29
ctoombs is on a distinguished road
ctoombs ctoombs is offline
Junior Member
 
Join Date: Jun 2015
Location: Los Angeles
Posts: 29
ctoombs is on a distinguished road
Bit of an update: ran an errand today where I got fully up to temp, and lo and behold, zero noise.

Now the interesting factor here is it’s 20 degrees warmer today (60) vs yesterday (35-40).

Gonna definitely get into it and see what’s causing the chirp, will report back once I get to the bottom of this.
ctoombs is offline   Reply With QuoteReply With Quote
Old 03-18-2020, 08:59 PM #8
shadow247's Avatar
shadow247 shadow247 is offline
Senior Member
 
Join Date: Feb 2012
Location: DFW, TX
Posts: 2,056
shadow247 is just really nice shadow247 is just really nice shadow247 is just really nice shadow247 is just really nice shadow247 is just really nice
shadow247 shadow247 is offline
Senior Member
shadow247's Avatar
 
Join Date: Feb 2012
Location: DFW, TX
Posts: 2,056
shadow247 is just really nice shadow247 is just really nice shadow247 is just really nice shadow247 is just really nice shadow247 is just really nice
Quote:
Originally Posted by ctoombs View Post
Bit of an update: ran an errand today where I got fully up to temp, and lo and behold, zero noise.

Now the interesting factor here is it’s 20 degrees warmer today (60) vs yesterday (35-40).

Gonna definitely get into it and see what’s causing the chirp, will report back once I get to the bottom of this.
Please let us know what you found. There are so many threads where people give different kinds of advice, and OP never responds if they tried any of it, or if they even fixed the problem.
__________________

The 4Runner Show
shadow247 is offline   Reply With QuoteReply With Quote
Reply

Tags
belts , initial , replaced , timing , video

Thread Tools
Display Modes Rate This Thread
Rate This 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
Diagnosing AC squeal Kyngfish 3rd gen T4Rs 18 11-28-2016 10:59 AM
Key fob locks three, no chirp Reata 5th gen T4Rs 10 02-03-2015 07:24 PM
Quick chirp awthorn 3rd gen T4Rs 10 05-10-2014 09:34 PM
how can i turn off my chirp? 4rnr4me 3rd gen T4Rs 17 02-26-2008 07:23 PM
*chirp, Chirp * Bobby Northeast 27 10-06-2006 07:47 PM

Powered by vBadvanced CMPS v3.2.2

All times are GMT -4. The time now is 11:33 AM.

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
 
Copyright © 2020