Question about 2001 Jeep Grand Cherokee

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I have a 2001 Grand Cherokee limited quadra trac, and I just noticed a lout humming from the front end, I currently trying to sell it and need to figure out the humming

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Could be the rotors grinding. Take it to your local mechanic and have him check out youur front end. Hope this helps, James Booth

Posted on May 17, 2011

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My 4 wheel drive no longer works.


WJ jeeps.
what mode? 4h, 2l lock >?
why not just drive it and get it all loose and happy first.
get the gearlube hot, see if it wakes up, i bet it does.
there is no vacuum hose. that is part time. used long ago.
vacuum ended in 1995 with command trac.
the newer cars the front axle is cut out, inside the transfer case front end. ending vacuum and now electric.

Select track (stay off dry pavement in 4wd)
Quadra-Trac-II NV 247 Gerodisc system 1999+
Quadra-Drive NV247
if quada stay out of low or lock.

read this page,. and discover what you have.
or go under car, see that transfer case, see that silver and red tag
that is the NV number. what is yours>?
we can not guess options. ever.

http://en.wikipedia.org/wiki/Jeep_four-wheel-drive_systems

which one of 4.
http://www.wjjeeps.com/tcases.htm



Mar 08, 2015 | 1999 Jeep Grand Cherokee Limited

1 Answer

Why can't my 2006 jeep go into 4 wheel drive?


are you on dirt? or pavement...????????????????????????
we cant answer until you answer what 4wd option you have.
if that makes no sense, then read the operators guide,
it tells you what's there and how to use it.
read that first, then ask questions,?
and if Part time 4wd?, it';s not to be used on dry pavement only ICE.

eg:

4WD: Select-Trac (or older Select-Drive has a slip coupling too, NP129/229) is AWD in that, "the "4Hi" setting the drive shafts were coupled together using a viscous-type coupler " this anti wind up slipper"
Watch out for exception 1: Select-Trac NP228 based jeeps, it does not have a viscous-type limited-slip coupling. It was used briefly in 1986.
Quada-Trac is full time 4WD (not in lock mode) has a real center differential to shift torque between front and rear. This is the best system , not just a slip clutch as above. Then went BACK to the slipper in 1980. (odd huh?) Up to 1998.
Quadra-Trac-II "4-All Time", "N" or neutral, and "4-Lo". In "4-All Time", torque is applied to the rear wheels under normal driving conditions.
If the rear axle starts rotating at a significantly higher rate than the front axle, hydraulic pressure builds up in the gerotor oil pump and causes the clutch pack, to progressively transfer torque to the front axle, until both axles return to the same speed
Quadra-Trac I was introduced in 2004-10, same as above but is automatic with no driver controls ,like above.
The Quadra-Drive system was introduced in 1999 and is based on the Quadra-Trac II system but adds limited slip differentials (the best full time system ,with great traction to all wheels all the time) 1999 to 04.
Quadra-Drive-II has electronic limited slip differentials or ELSDs 2005 up.

Aug 01, 2014 | 2006 Jeep Grand Cherokee

1 Answer

Why wont my jep go into 4 wheel drive when I pull th lever?


which system?
we cant guess what is In YOUR CAR, ever.
you must SAY. or RTM, in the glove box.
and why are you using 4wd on dry pavement, now>?


4WD: Select-Trac (or older Select-Drive has a slip coupling too, NP129/229) is AWD in that, "the "4Hi" setting the drive shafts were coupled together using a viscous-type coupler " this anti wind up slipper"
Watch out for exception 1: Select-Trac NP228 based jeeps, it does not have a viscous-type limited-slip coupling. It was used briefly in 1986.
Quada-Trac is full time 4WD (not in lock mode) has a real center differential to shift torque between front and rear. This is the best system , not just a slip clutch as above. Then went BACK to the slipper in 1980. (odd huh?) Up to 1998.
Quadra-Trac-II "4-All Time", "N" or neutral, and "4-Lo". In "4-All Time", torque is applied to the rear wheels under normal driving conditions.
If the rear axle starts rotating at a significantly higher rate than the front axle, hydraulic pressure builds up in the gerotor oil pump and causes the clutch pack, to progressively transfer torque to the front axle, until both axles return to the same speed
Quadra-Trac I was introduced in 2004-10, same as above but is automatic with no driver controls ,like above.
The Quadra-Drive system was introduced in 1999 and is based on the Quadra-Trac II system but adds limited slip differentials (the best full time system ,with great traction to all wheels all the time) 1999 to 04.
Quadra-Drive-II has electronic limited slip differentials or ELSDs 2005 up.

Aug 01, 2014 | 2006 Jeep Grand Cherokee

1 Answer

1999 jeep grand cherikee 4 wheel drive not working


You need to be more specific. To start, which 4 wheel drive system your jeep has? (Select Trac, Quadra Trac II or Quadra Drive)
Then: does it never work, or only in 4-Lo?

Dec 22, 2013 | 1999 Jeep Grand Cherokee

2 Answers

1999 Jeep grand cherokee limited with Quadra trac only works as two wheel drive when all wheel is selected and will not go into 4-lo. Sounds like it isn't engaging fully and feels like the lever should go...


Could you tell me what selection you have on your 4x4 shifter?

You have 4 high (full time) N 4 Low and nothing else?

Quadra only sends power to the front axle when it is needed, it uses a hydraulic unit that senses slip then send power to the front.

You also need to make sure your getting it in to gear right, for me I found that getting to 4 low can be hard as they tend to bind, move the 4x4 shifter to N take your foot off the brake and pull it into 4 low, do the same getting back out.

I have owned every 4x4 Jeep T case in Grands from 93 to 02 they offer fantastic traction and options and are strong.

Make sure your T case fluid is full, if you have never changed it DO SO, as dirty fluid plays hell on them, if you do have Quadra trac you need to get the correct fluid for the case, go to your Jeep dealer and get it, DONT put trans fluid in as this dose not work right with the system.

If you want "Locked" run the system in 4 low, as heavy off road in 4high with Quadra is not the best for heavy off road, use 4 low to that.

If you need more help just ask, I hope this worked.

1993 2HI N 4LO, 1998 5.9 LX Quadra trac with limited slips 2000 2HI, 4HI full 4HI part N 4LO 2002 Limited with Quadra with Vari-Lok differentials.

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Nov 24, 2010 | 1999 Jeep Grand Cherokee

1 Answer

Right front axle too short . 2000 Jeep Grand Cherokee Limited Quadra-trac II


if it was me i would check with Napa or try to find one at a good salavage yard give this website a try to find one close to you www.junkyarddog.com and try these as well www.alldatadiy.com and www.autozone.com wish you the best of luck Michigan Man.

Mar 08, 2010 | 2000 Jeep Grand Cherokee

2 Answers

What kind of ATF goes in my 1992 cherokee?


Use ATF+4

Do not use Dexron or Mercon

Aug 08, 2009 | 1992 Jeep Cherokee Sport

1 Answer

1999 Jeep G C Quadra Trac keeps getting stuck in 4 wheel drive.


universal joint on the driveshaft may do this !
check transmission fluide as well.
good luck

Mar 31, 2009 | 1999 Jeep Grand Cherokee

1 Answer

Jeep grand cherokee 247 Transfer case Interchange ?


if the shifter is the same and they have the same front driveshaft then yes

Jan 07, 2009 | 2001 Jeep Grand Cherokee

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