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-   -   2010 Shifts into 4 Wheel Low on Own (http://www.jeepgarage.org/f107/2010-shifts-into-4-wheel-low-on-own-24793.html)

last50mustang 06-22-2011 05:47 PM

2010 Shifts into 4 Wheel Low on Own
 
Have a 2010 Jeep Grand Cherokee Limited, Hemi, Quadra Drive II, 18K miles. Earlier in the week after starting the Jeep and driving away it went in 4WLow on its own. Had a difficult time going back to 4WH. After several attempts went to 4WDH. Since then the steering is very tight. Reminds me of my old 2002 when put in 4WDH from 2 WD. The dealer checked out and found nothing wrong. The steering is very tight and it defiantly feels significantly different from when it went into 4WL on its own earlier in the week. Any suggestion would be appreciated.

SvenskaJeepGuy 06-22-2011 06:34 PM

Re: 2010 Shifts into 4 Wheel Low on Own
 
it does this while driving? i dont think 4lo would even work over 15mph..... are you sure that is what is happening?

ColdCase 06-22-2011 07:08 PM

Re: 2010 Shifts into 4 Wheel Low on Own
 
So are you saying the drive train is binding up on turns. If so the transfer case may be stuck in 4WD for some reason, but I don't know why the dealer could miss that.

last50mustang 06-22-2011 07:33 PM

Re: 2010 Shifts into 4 Wheel Low on Own
 
Quote:

Originally Posted by ColdCase (Post 436002)
So are you saying the drive train is binding up on turns. If so the transfer case may be stuck in 4WD for some reason, but I don't know why the dealer could miss that.

Dealer is saying that it is full time 4WD? Its almost like it was always in 2 WD and when went to low and then out of low something changed.

last50mustang 06-22-2011 07:34 PM

Re: 2010 Shifts into 4 Wheel Low on Own
 
Quote:

Originally Posted by SvenskaJeepGuy (Post 435976)
it does this while driving? i dont think 4lo would even work over 15mph..... are you sure that is what is happening?

At low speeds while turning

JeepCoop 06-22-2011 08:01 PM

Yup full time 4WD!

SvenskaJeepGuy 06-23-2011 12:07 AM

Re: 2010 Shifts into 4 Wheel Low on Own
 
it is about 90% rear and 10% front under normal driving

Knightrider03m 06-23-2011 12:23 AM

Re: 2010 Shifts into 4 Wheel Low on Own
 
Quote:

Originally Posted by SvenskaJeepGuy (Post 435976)
it does this while driving? i dont think 4lo would even work over 15mph..... are you sure that is what is happening?

Oh trust me, 4lo WILL work at over 15MPH :lol:

ColdCase 06-23-2011 07:50 AM

Re: 2010 Shifts into 4 Wheel Low on Own
 
Quote:

Originally Posted by last50mustang (Post 436011)
Dealer is saying that it is full time 4WD? Its almost like it was always in 2 WD and when went to low and then out of low something changed.


Yeah it is so called full time but the locking of the front/rear driveshafts (over simplification) is controlled by a clutch and motor which is inturn controlled by the computer. In normal, there should be little to no "binding" feeling because the clutches are released (there will be some binding as the transfer case is never free wheeling). If you can feel the binding, the clutch may not be releasing, for whatever reason. Maybe a reset of the computer is warranted.

Is it skipping and hopping on sharp turns? The dealer should have a procedure to verify the proper torque split between front and rear axles..

ColdCase 06-23-2011 08:02 AM

Re: 2010 Shifts into 4 Wheel Low on Own
 
Is it a Quadra Drive II or Quadra Trac II. QTII would have 2WD, 4WD auto, and Lo modes where QDII would have select terain, i.e mud, sport, normal, rock type selections..

They both use the same transfer case, but have different computer programming. QD has a limited slip rear. Perhaps the early builds were different, I dunno. But do you have a 2WD position? What happens when you select it?

For some reason the computer may be thinking you have a slipping tire, are the tires all the same?

ColdCase 06-23-2011 09:59 AM

Re: 2010 Shifts into 4 Wheel Low on Own
 
Wait, I missed the OP 2010 year, never mind.... .

last50mustang 06-23-2011 06:24 PM

Re: 2010 Shifts into 4 Wheel Low on Own
 
Quote:

Originally Posted by ColdCase (Post 436238)
Is it a Quadra Drive II or Quadra Trac II. QTII would have 2WD, 4WD auto, and Lo modes where QDII would have select terain, i.e mud, sport, normal, rock type selections..

They both use the same transfer case, but have different computer programming. QD has a limited slip rear. Perhaps the early builds were different, I dunno. But do you have a 2WD position? What happens when you select it?

For some reason the computer may be thinking you have a slipping tire, are the tires all the same?

No 2 WD selection


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