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  #1  
Old 01-20-2014, 03:54 PM
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Normal? - Ratcheting sound upon loss of traction?

2011 JGC

Last couple snow storms have made for slick roads. I am noticing what seems to be a new "feature".

Not sure how to describe. When I lose traction (i.e., dash light comes on), I hear a distinct mechanical ratcheting sound in what feels like just behind the driver's side dashboard. 100% reproducible. The sound is not the same as anti-lock breaking...

I do not recall hearing this sound in previous snow seasons.

Does this seem abnormal?
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Old 01-20-2014, 04:40 PM
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Re: Normal? - Ratcheting sound upon loss of traction?

It's normal. Just your ESC making up for the loss of traction.

Here are a couple other threads about it:

Left wheel noise w/slippage: Normal/Abnormal

Scraping Noise When Front Axle Articulates. Need Help Identifying.
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Old 03-15-2014, 12:54 PM
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Re: Normal? - Ratcheting sound upon loss of traction?

I have been searching for this information, Just purchased a nice 2012 from a Rental fleet 23K with full warranty and transfer warranty live mile up dirt snow covered road and run 4WD all winter on this road as it is mile uphill. This was purchased for my wife we have always driven jeeps past 11 years at this location and this was a long awaited purchase as we needed to improve the road before buying a nicer jeep. This annoying noise has caused her not to drive the jeep until a dealer looks at it, They will charge $100 if no issue found. She is currently running the 96 F-350 plow truck instead of her Jeep. If this is normal know anybody looking for a super nice Jeep Liberty 2012 25K. Turning around in the driveway this is so bad I do not believe that either front tire is moving just making this horendous ractheting noise Thanks
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Old 03-15-2014, 06:37 PM
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Re: Normal? - Ratcheting sound upon loss of traction?

NORMAL
Look under the hood where the brake hardware is located. The ABS module is located by the left front wheel. I hear noises when I use ACC as well.
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Old 03-15-2014, 06:53 PM
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Yup, all it's only the Brake Traction Control system working to provide torque to the wheel with traction. Should sound the same if you were to do an emergency stop and the ABS kicks in.
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Old 03-15-2014, 07:09 PM
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Re: Normal? - Ratcheting sound upon loss of traction?

Anyway to override this or to lock the 4 x 4 in solid ? It is like it is slipping and not sure that the front end is really working. When turning around in the driveway on slight slope it appears that the front wheels are not doing any work and the jeep sits there chattering away and will not back up. Almost like it was not in 4 x 4 but in 2WD getting a similar noise but not as intense, assume that in 2wd it s the rear traction control. Not much of a 4 x 4 as I know jeeps as being. If this is normal she thinks she will sell it and go back to running her 04 liberty that you pull the lever and know your going to move !!!!!!

A lot like the AWD drive Mitsubishi my daughter bought well away at collage years ago and when she returned home in the snow company and found out the sales guy lied to her it was FWD
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Old 03-15-2014, 09:28 PM
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Re: Normal? - Ratcheting sound upon loss of traction?

Not sure what you really are inquiring about.
All 4x4 Jeep Grand Cherokees...are full time AWD.

To lock the system in 4 LO you have to have the proper hardware (gearbox) installed on the car. Locking the system in 4 LO will not lend itself to dry pavement and/or high speed driving. EVER. It is a matter of physics and the fact that when turning, wheels take different paths and spin at different speeds.

Why would you want to override this safety feature? It boggles my mind when people think that by overriding things like ABS and ESC they are safer. Disabling them might make you faster on the race track but not safer. I heard it all from rain to snow driving to sand driving to what have you. I agree that in certain situations like when you are stuck in sand, snow etc., there comes a point where some systems have to be turned off to make forward movement. But with the Jeep's advanced calibration (Terrain Select) for most situations, this is almost a non-issue.

I recall an interview with Michael Schumacher during the 2002 Formula One season, at the height of second wave of electronics in Formula One. He was very adamant that electronic car controls help him drive at the limit of traction, of control. This was from a man who had won 4 world championships and would go on to win 3 more, 5 of the 7 being back to back.
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Old 03-15-2014, 09:43 PM
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Re: Normal? - Ratcheting sound upon loss of traction?

You could turn traction control off.
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Old 03-16-2014, 06:06 AM
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Re: Normal? - Ratcheting sound upon loss of traction?

Quote:
Originally Posted by f1anatic View Post
Not sure what you really are inquiring about.
All 4x4 Jeep Grand Cherokees...are full time AWD.

To lock the system in 4 LO you have to have the proper hardware (gearbox) installed on the car. Locking the system in 4 LO will not lend itself to dry pavement and/or high speed driving. EVER. It is a matter of physics and the fact that when turning, wheels take different paths and spin at different speeds.

Why would you want to override this safety feature? It boggles my mind when people think that by overriding things like ABS and ESC they are safer. Disabling them might make you faster on the race track but not safer. I heard it all from rain to snow driving to sand driving to what have you. I agree that in certain situations like when you are stuck in sand, snow etc., there comes a point where some systems have to be turned off to make forward movement. But with the Jeep's advanced calibration (Terrain Select) for most situations, this is almost a non-issue.

I recall an interview with Michael Schumacher during the 2002 Formula One season, at the height of second wave of electronics in Formula One. He was very adamant that electronic car controls help him drive at the limit of traction, of control. This was from a man who had won 4 world championships and would go on to win 3 more, 5 of the 7 being back to back.
This is the 2012 Liberty , Not looking to change any safety features, just want to be able to put in 4 x 4 and have the wheels do as needed find that I believe the front tires are not always engaging and as stated when turning around in our driveway. Bought a Jeep because of where we live and our need for a real 4 x 4 we will be in mud season in a few weeks. That is a season of muddy roads as the frost comes out of the ground will last about 3-4 weeks. What will this do stop sit and rattle. Like a old school kids electric jeep that stops and just chatters when it gets to a wall. Not looking to change the way the vehicle is equipped or discount safety items the road is 1 mile uphill and max speed is about 20 MPH.

Bought this Liberty as we have always had great luck with them Grand Cherokees , Wranglers and Liberties, really like the ground clearance and the basic style and design.
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Old 03-16-2014, 06:12 AM
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Re: Normal? - Ratcheting sound upon loss of traction?

Quote:
Originally Posted by offroader View Post
You could turn traction control off.
Thanks think we had tried that and still had not change, also somewhere I was reading to run in 4 x 4 Low thinking that I had tried these back when we first had the issue and will be heading to town this morning and give them a try.

Again Thanks
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Old 03-16-2014, 06:16 AM
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Re: Normal? - Ratcheting sound upon loss of traction?

Quote:
Originally Posted by offroader View Post
You could turn traction control off.
turning traction off does not turn off stability you will still have the ESP on even with TC off
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Old 03-16-2014, 07:22 AM
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Re: Normal? - Ratcheting sound upon loss of traction?

So just out and about and trying some things

Jeep 4 High Lock ? this is like 4 high part time / limited slip / maybe sometimes

Traction control off still making noise but feels like it is grabbing and on th turn around noisy but is locked in

Traction control off and 2 wd coming up snow covered road was no issue and felt like it was more of a rear locker than



Jeep 4 Low power down and ready to respond with none of the annoying noise and feels like it is grabbing Nice more like a real 4 x 4

I understand some people can't have't driven a 4 x 4 in winter conditions, grew up in the winter conditions and always headed out during snow storms with reliable 4 x 4. Never had any issues crashes accident and able to control the vehicle I am driving understand that they are producing products for dumb people. More to fail and cost more to repair.

If I was aware of this before making the purchase think it would NOT have been a Jeep if this system is used on the full line. My fault as I did not research such a severe change, We were really think about the new 2014 Cherokee the dealer refused giving a bottom dollar price before test driving and stumbled across this 2012 Liberty with 23K at blow out price great deal great vehicle but me not understanding the 4x4 system change and function we will give it until fall and decide if we keep it or try something different for next winter. Guess will cancel the $100 appointment as it appears the is normal


Thanks to everybody that responded and the previous post on the subject
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