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post #1 of 12 (permalink) Old 04-17-2019, 01:54 PM Thread Starter
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Join Date: Apr 2019
Location: Memphis Area
Own a Commander?: Yes
Model year: 2006
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Power-Train: 4.7L V-8
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If 4WD - system: QT-II
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2006 Jeep Commander - Looking for Guidance

Hello Jeep Commander Community
My name is Greg C. and I'm new to this Forum. I own a 2006 Jeep Commander 4.7 Limited and Love It!
I'm a DIY kinda of guy and always eager to learn. At the moment I'm having some issues with my Commander and hoping someone in the community
can provide some assistance. I found the following link on YouTube and is the exact issue I'm experiencing at the current moment.
If anyone has experienced this before, can you provide some insight to the issue?
The YouTube link is: youtube.com/watch?v=MLhgQ86iQWk

Thank You,
Greg C.
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post #2 of 12 (permalink) Old 04-17-2019, 03:46 PM
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Join Date: Oct 2015
Location: East Coast of Florida
Own a Commander?: Yes
Model year: 2008
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Power-Train: 4.7L V-8
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If 4WD - system: QT-II
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Quote:
Originally Posted by Greg C. View Post
Hello Jeep Commander Community
My name is Greg C. and I'm new to this Forum. I own a 2006 Jeep Commander 4.7 Limited and Love It!
I'm a DIY kinda of guy and always eager to learn. At the moment I'm having some issues with my Commander and hoping someone in the community
can provide some assistance. I found the following link on YouTube and is the exact issue I'm experiencing at the current moment.
If anyone has experienced this before, can you provide some insight to the issue?
The YouTube link is: youtube.com/watch?v=MLhgQ86iQWk

Thank You,
Greg C.
Welcome to the forum @Greg C.

Post some pics of your Commander when you can; As for your front end noise it could be one of several different issues; tough to say just by listening to a youtube video; Could be a pulley with some bad bearings somewhere or maybe your hub-bearings going bad, first thing I'd check is the pulley on the waterpump. Does it make the noise at idle - or only when driving? If it only happens while driving then it's more likely hub-bearings or something of that nature.

Anyway, here are some links if you want to order any parts for repairs or upgrades to your XK;

Chrysler/Jeep Factory Parts: https://www.factorychryslerparts.com/

North American Parts: https://northamericanparts.rpmware.c...unt/login.aspx

JeepinByAl: JBAoffroad.com

JustforJeeps.com - https://www.justforjeeps.com/

Rough County lift kits - Suspension Lift Kits, Body Lifts, Leveling Kit, 4x4, Jeep, Chevy, Dodge, Ford, Off-road Truck | Rough Country Suspension SystemsŪ

AFE: Advanced FLOW Engineering | Engineered Adrenaline

CARiD.com - https://www.carid.com/?gclid=CjwKEAj...NrrxoCEBbw_wcB

Bilstein shocks & struts - Home

WAM Custom Bumpers - https://wambumpers.com/

JeepSteel Custom Bumpers - https://www.jeepsteel.com/

4WheelParts.com - Truck Parts & Jeep Parts - Lift Kits, Winches, Tonneau Covers, Tires, Wheels, Bumpers, Performance ? 4 Wheel Parts

RockAuto - https://www.rockauto.com/en/catalog/...catalog%2Fjeep

Also, please read this if you haven't done so already - lots of good information in here;

REQUIRED READING!!! New Member Introduction post & other important new member info.

Thanks & again, Welcome to the forum.


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Last edited by Big Blue; 05-07-2019 at 07:47 AM.
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post #3 of 12 (permalink) Old 04-18-2019, 01:55 AM
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Is this noise proportional to the engine RPM or to the vehicle's speed? If it happens at idle, or seems tied to the engine RPM and goes back down as the transmission shifts gears then creeps back up until the next shift, I would be looking at belt driven things like pulleys, water pump etc. If it seems to be proportional to the vehicle speed and just constantly increases as you speed up regardless of transmission shifts, I would look at everything behind the transmission.
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post #4 of 12 (permalink) Old 04-18-2019, 10:54 AM Thread Starter
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Join Date: Apr 2019
Location: Memphis Area
Own a Commander?: Yes
Model year: 2006
Trim Package: Limited
Power-Train: 4.7L V-8
4WD
If 4WD - system: QT-II
Current Mileage: 144,000
Posts: 5
Thank You for the feedback.
It happens when I accelerate (clunking and screeching), but when I let off the accelerator and coast, it's fine.
With engine running at idle, everything is normal (pulleys, water pump etc...is all good).

I thought it might be rotors or calipers, but now I'm concerned it could be the front outer or inner pinon bearing (hope not), but possibility.
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post #5 of 12 (permalink) Old 04-18-2019, 04:42 PM
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Join Date: Jun 2013
Location: California
Own a Commander?: Yes
Model year: 2006
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Power-Train: 5.7L V-8 Hemi
4WD
If 4WD - system: QD-II
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Sounds like it's only happening when the drivetrain is under load then. Take a look at your CV and U joints on your driveshafts/half shafts, and check for any abnormal play. I wouldn't expect one of them to screech, but that's definitely a quicker/cheaper item to replace than a pinion bearing.

2006 XK Limited, Hemi, QDII
245/70R17 General Grabber AT2s
Ported/Polished Throttle Body
Flowmaster Super 44
Stock Height Again (For Now)
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post #6 of 12 (permalink) Old 04-18-2019, 08:22 PM
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Join Date: Mar 2017
Location: East Detroit
Own a Commander?: Yes
Model year: 2006
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Power-Train: 5.7L V-8 Hemi
4WD
If 4WD - system: QD-II
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Can you duplicate the sound without driving? Just raising RPM while parked, then try again raising RPM while in drive but with foot on the brake, just to put a load on the motor.
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post #7 of 12 (permalink) Old 04-19-2019, 10:01 AM Thread Starter
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Join Date: Apr 2019
Location: Memphis Area
Own a Commander?: Yes
Model year: 2006
Trim Package: Limited
Power-Train: 4.7L V-8
4WD
If 4WD - system: QT-II
Current Mileage: 144,000
Posts: 5
I tried that and It's only happening when the jeep is moving, in park or like you suggested when in drive (standstill), it's all good.
It's definitely coming from the front (almost positive not from the back). I'm changing my front rotors and pads tomorrow (it's due, but unlikely what's causing the issue), but hoping that's what it is. My fear is the front pinion bearing (will see).
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post #8 of 12 (permalink) Old 04-19-2019, 03:53 PM
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Join Date: Oct 2015
Location: East Coast of Florida
Own a Commander?: Yes
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Quote:
Originally Posted by Greg C. View Post
I tried that and It's only happening when the jeep is moving, in park or like you suggested when in drive (standstill), it's all good.
It's definitely coming from the front (almost positive not from the back). I'm changing my front rotors and pads tomorrow (it's due, but unlikely what's causing the issue), but hoping that's what it is. My fear is the front pinion bearing (will see).
Could be one of your front hub bearings as well. You might consider checking them while you're changing the front rotors.


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post #9 of 12 (permalink) Old 04-19-2019, 08:30 PM
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Join Date: Mar 2017
Location: East Detroit
Own a Commander?: Yes
Model year: 2006
Trim Package: Limited
Power-Train: 5.7L V-8 Hemi
4WD
If 4WD - system: QD-II
Current Mileage: 123000
Posts: 88
My 2 cents...
If its anything like that video i doubt its a pinion bearing which would be rotating at 3-4x wheel speed. Also was definately faster than 1:1 wheel speed which rules out hubs and halfshafts.
What i heard in that sounded much more like an alternator , water pump bearing or fan clutch because of the noise changing speed while the vehicle speed remained constant.
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post #10 of 12 (permalink) Old 04-20-2019, 10:24 AM Thread Starter
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Join Date: Apr 2019
Location: Memphis Area
Own a Commander?: Yes
Model year: 2006
Trim Package: Limited
Power-Train: 4.7L V-8
4WD
If 4WD - system: QT-II
Current Mileage: 144,000
Posts: 5
Thank you for the insight...today I plan on digging into it a little deeper and hopefully find the issue. I read one post it could be the CV bearings on the front drive shaft where it attaches to the transfer case. I'll report back on what I find.
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