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Prowler Junkie

From:Saint Johns , FL, United States
Registered: Nov 2018
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posted 01-18-2019 06:28 PM                  

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Earlier today I noticed a strange whispering, winding noise. Could this be a Idler pulley?

http://youtu.be/MU-tGGXwTVQ https://youtu.be/MU-tGGXwTVQ

https://youtu.be/RcxqSw9u-04 https://youtu.be/RcxqSw9u-04

This message has been edited by Hoagie1 on 01-18-2019 at 06:33 PM

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Prowler Junkie

From:Bulverde, Texas, United States
Registered: Nov 2009
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From:Chesterton, IN, USA
Registered: Dec 2010
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Prowler Junkie

From:Live Free Or Die State, NH
Registered: Aug 2014
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posted 01-18-2019 07:45 PM                  

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Sounds like a bad bearing to me,, best guess from the videos.

Do you have a piece of heater hose,,, 1" x approx 2',, works best. Use it as a stethoscope to see if you can isolate the noise.

From:Angier, North Carolina
Registered: Jun 2018
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posted 01-19-2019 05:30 AM                  

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Hi Hoagie1,

The sounds might be the idler belt pully. Seen the issue before on the 3.5l engines on Chysler vehicles. The quickest way to diag is to go old school. Take a long screw driver and place the tip on the back side of the idler where it bolts to motor while the engine is running. Then place your ear on the handle end. You will be able to hear the growling noise thru the screw driver to pinpoint the noise. Hope this helps you to find the issue.

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Prowler Junkie

From:St Thomas Ontario Canada
Registered: Nov 2013
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posted 01-19-2019 08:26 AM                  

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http://www.moparpartsgiant.com/parts/mopar-pulley-idler~4792112ad.html

part # 4792112AD

the correct belt tension is serp-190 ft lbs and a/c is 150 ft lbs.

This message has been edited by robin on 01-19-2019 at 08:28 AM

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Prowler Junkie

From:Denham Springs, Louisiana , USA
Registered: Dec 2005
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posted 01-23-2019 09:57 AM                  

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Some Prowlers have a decoupler on the front of the alternator. The decoupler can go bad and the alternator still be good. That’s what happened to me and it made a similar noise.

This message has been edited by dskatt on 01-23-2019 at 10:00 AM

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Prowler Junkie

From:Commack, NY, USA
Registered: Jan 2005
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posted 01-23-2019 03:34 PM                  

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2000 and up Prowlers have decoupling alternator pulley.

Pulley is replaceable, you do not have to buy a complete alternator.

This message has been edited by Tomcal on 01-24-2019 at 10:37 AM

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Prowler Junkie

From:Saint Johns , FL, United States
Registered: Nov 2018
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posted 01-24-2019 09:49 AM                  

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Thanks everyone.

I too, think its the decoupler on the front of the alternator, the sound is coming from the front of the engine.

I'll be fiddling with it later today.

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Prowler Junkie

From:St Thomas Ontario Canada
Registered: Nov 2013
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posted 02-01-2019 09:52 AM                  

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http://www.ebay.com/itm/CLUTCH-PULLEY-A3TG1581-A3TB1691-A3TB1691ZC-11097-13955/321044962677?fits=Model%3AProwler%7CMake%3APlymouth&hash=item4abfc55d75:g:W7QAAMXQ83xSDuZ5

Continental Elite Alternator Decoupler Pulley
49927

This message has been edited by robin on 02-01-2019 at 10:06 AM

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Prowler Junkie

From:England
Registered: Jul 2014
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From:England
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From:Saint Johns , FL, United States
Registered: Nov 2018
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posted 02-26-2019 07:46 PM                  

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I brought my Kat in yesterday since I couldn't figure it out.

I'll keep everyone posted.

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Prowler Junkie

From:St Thomas Ontario Canada
Registered: Nov 2013
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posted 02-28-2019 01:45 PM                  

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garryforrestuk If you are coming to the states . order one of these . It's just the front of the Alternator 44 dollars . If the bearing is gone it will make that noise . It doesn't mean the alternator is bad .
Very easy to change.

http: //www.ebay.com/itm/CLUTCH-PULLEY-A3TG1581-A3TB1691-A3TB1691ZC-11097-13955/321044962677?fits=Model%3AProwler%7CMake%3APlymouth&hash=item4abfc55d75:g:W7QAAMXQ83xSDuZ5
That is a bearing in the picture that makes the noise.

This message has been edited by robin on 02-28-2019 at 01:46 PM

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Prowler Junkie

From:kensington Conn, USA
Registered: Dec 2003
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posted 02-28-2019 02:39 PM                  

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Sometimes depending on how bad the alternator decoupling clutch bearing is if you rev your engine up real high and turn the key off you may hear a bad alternator bearing continue to spin after the engine stops for a few seconds.

Hope this helps
toys

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Prowler Junkie

From:Saint Johns , FL, United States
Registered: Nov 2018
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posted 04-16-2019 09:17 PM                  

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Thanks everyone, I forgot to post what the noise was.

Alternator Decoupler Idler pulley and the serpentine pulley.
The bearings were going bad in both.

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Prowler Junkie

From:Live Free Or Die State, NH
Registered: Aug 2014
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From:SAN ANTONIO, TEXAS US
Registered: Mar 2005
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