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My mechanic says I need a new front transfer case, will I do any damage by just driving the car in 2 wheel drive? He wants $750 to install a used one. with 2 kids in college, thats a lot of money.

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  • drew witteborg
    drew witteborg Jan 04, 2017

    BTW It's a 200 Grand Cherokee with quadra drive.

  • Daniel Jan 04, 2017

    Front differential or transfer case?

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  • Cars & Trucks Master
  • 501 Answers

If you can set it so just the rear wheels are driving the truck, I would think you may be ok. Not 100% sure of this.

Posted on Jan 04, 2017

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I have a Suzuki Jimmy manual 4x4 year 2002 can I flat tow it on a Aframe behind a motorhome


welcome to USA forum
the country with not ONE< JIMNY,
but i can answer
there are 4 ways to tow this is but 1.
backwards towing is best way or drop rear drive shaft (ask)
flat tow 101:
the Jimny is SJ413 here,called Samurai.
the transfer case sets this rule (most rear device)
that rules is dont flat tow it, more that 200 miles
the rear bearing has no lube actions towed
here is the near same transmissions.

and rules (of xfr case)
ill quote my 2001 Vitara, (same setup.)

Follow these steps:
1. Set the parking brake.
2. Shift your automatic transmission into PARK (P), or
your manual transmission to SECOND (2).
3. With the ignition key in the ON position, move the
transfer case to NEUTRAL and make sure the 4WD
light on the instrument panel cluster is off. See
"Four-Wheel Drive" in the Index.
4. Turn the ignition key to ACC to unlock the
steering wheel.
5. Release the parking brake
If you tow your four-wheel-drive vehicle from
the front, make sure to move the transfer case
into NEUTRAL or your vehicle could be badly
damaged and the damage would not be covered
by your warranty.
Stop towing every 200 miles (300 km) and start the
engine. Leave the transfer case shift lever in
NEUTRAL. Shift your automatic transmission to
DRIVE (D); leave a manual transmission in
SECOND (2) with the clutch engaged. Run the engine at
medium speed for one minute to circulate oil in the
transfer case. Turn the ignition key to ACC. Now, you
can continue towing your vehicle.
The front wheels transmit shocks during towing.
The steering column may not be strong enough to
withstand the shocks. Always unlock the steering
wheel before towing.
Make sure that the towing speed does not
exceed 50 mph (80 km/h), or your vehicle could
be badly damaged
end direct quote operators guide .....
got that?

not how the 5speed box is in 2nd.
this is to keep it from spinning, and its rear bearing damaged.
there are 2 bearings to worry the rear 5sp and rear transfer case.

on ours, we use an electric oil'er pump added to transfer case.
unlimited tow. (wires power feed from RV via coupler.)
or the drives shaft decoupling device, (not cheap)
or we drop the rear, of prop shaft, and tie up the rear up high
so it cant drop nor let it fall of rear of transfer cases
we use bunji cords, for up,
and then pull the front,
if the prop shaft falls out, you will lose GL4 gear lube out rear
of the transfer case. it falls out so very easy, off that spine.
there are all ways flat,
done them all.,

Mar 04, 2017 | Suzuki Cars & Trucks

1 Answer

When I select 4 wheel drive, why does it feel as though it is binding or dragging and whining while driving?


Depending on the specific vehicle many 4WD have a transfer case that will lock the front and rear drives shafts together. This configuration is only for slippery conditions like ice and snow or very wet or off road. When turning the radius is different between the front and rear so there is a lot of feedback to the steering wheel. This is created by the fact the front set of wheels and the rear set of wheels must make the same number of turns because of the locked transfer case.

If you attempt to drive on high friction surfaces the stress to the drive train is excessive and will cause damage. The whine and the bunny hop is the drive train attempting to release this tension. If you were on a slippery surface the tires would have much less resistance turning at slightly different rates.

Also critical is the tire size need to be the same. However even with perfectly matched tires the problem on dry surfaces remain the same.

The AWD vehicles are equipped with a third differential that allows for the difference between the rotation of the drive shafts so it can drive on dry pavement no problem. Some configurations allow the AWD to have the transfer case locked which falls into the first category where dry pavement is prohibited.

Some Jeeps have a viscous coupling in the transfer case that permits limited slip between front to rear but the resistance to slip increases as the deference increases as in the event one tire is slipping
These Jeeps still have the lock up option in the transfer case requiring dry pavement when engaged.

Hope this helps?
26057584-kkvzjwyy5funxhw1bdhue1xw-1-0.jpg

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Jan 17, 2016 | Cars & Trucks

1 Answer

4 wheel drive won't engage


Which do you have ?
Transfer Case - NVG 236 (Two Speed Automatic)
Transfer Case - NVG 233-NP1 (Two Speed Selectable)
The NV236 transfer case is an automatic transfer case with three drive ranges. Shifting from rear wheel drive to four wheel drive is done automatically when the transfer case shift control module receives wheel rotating slip information from the speed sensors. The transfer case shift control module then engages the transfer case motor/encoder to position the transfer case from rear to four wheel drive. When the transfer case shift control module receives information that the wheel rotation is the same on both axles, the transfer case shift control module sends position information to the motor/encoder to put the transfer case back into rear wheel drive. The three drive ranges are 2HI, 4HI, and 4LO. The 2HI position is for normal driving with the rear wheels pushing the vehicle. The 4HI, position is for driving through sand, snow, mud, gravel, or heavy rain at normal or slightly below normal speeds. The 4HI engages the front axle to allow for four wheel drive. The front axle is pulling the vehicle, and the rear axle is pushing the vehicle. The 4LO range is used for off road driving, heavy snow, deep mud, or shallow fording. The 4LO is similar to the 4HI except that the gearing in the transfer case is set for low speed and high torque. The NV236 is manufactured at Syracuse New York by New Venture Gear a division of New Process Gear for General Motors.
Is the switch light on or flashing ? If you have automatic 4x4 there are several DTC'S that can set >
DTC B2725 ATC Mode Switch Circuit Malfunction DTC C0300 Rear Speed Sensor Malfunction DTC C0305 Front Speed Sensor Malfunction DTC C0308 Motor A/B Circuit Low DTC C0309 Motor A/B Circuit High DTC C0310 Motor A/B Circuit Open DTC C0315 Motor Ground Circuit Open DTC C0323 T-Case Lock Circuit Low DTC C0324 T-Case Lock Circuit High DTC C0327 Encoder Circuit Malfunction DTC C0362 4LO Discrete Output Circuit High DTC C0367 Front Axle Control Circuit High DTC C0374 General System Malfunction DTC C0376 Front/Rear Shaft Speed Mismatch DTC C0387 Unable to Perform Shift DTC C0550 ECU Malfunction DTC C0611 VIN Information Error

Dec 01, 2015 | 2000 Chevrolet S-10

3 Answers

Since fitting 2 new tyres my Kia sorento 2005 2.5 TD has developed a grating noise from transfer case.the noise stops when fuse is removed.any ideas?


unfortunately on 4 wheel drive the tires must match changing 2 tires may have already done damage to the transfer case you will have to take it in and have it checked by a transmission shop good luck hopefully it hasn't done a lot of damage

Sep 30, 2014 | 2005 Kia Sorento

1 Answer

Bought a 1999 durango lady said it needs a tranfer case replaced was driving down road and transfer case broke and blew apart took to mechanic replaced transfer case but started vibrating after driving...


This type of vibration is typically caused by a bad universal joint on the drive line. I've seen a case where a bad u-joint caused the transfer case to crack and explode. Replace all the u-joints on the front and rear drive lines. They are usually only around 15 bucks each at NAPA and will be much cheaper than another T-case.

Jun 19, 2011 | 1999 Dodge Durango

1 Answer

08 f150 4x4 on front end only one side is disengaging when in 2 wheel drive. The problem is when engaged into 4x4 wheel drive the front drive line spins and both sides engage but only the back wheels spin...


If I read this correctly ( which I might not have, bit early for me ), the front drive shaft will engage ( from the transfer case ) but the front wheels are not engaged ?

If so, sounds like either the vacuum from the IWE ( Integrated Wheel End ) is not being released, or the IWEs have had an issue with part vacuum ( damage vacuum lines ) and the IWE gear is rounded off.

If you pull the vacuum lines at the IWEs ( there are 2 lines, 1 is the vacuum line, the other is the vent tube that routes up into the engine compartment and is not attached to anything ), the front wheel should engage ( might need a 5 * turn to mesh the gears ). With the vacuum lines off, jack up the front axle ( take precautions, chock the rear wheels, parking brake, jack stands, etc ) see if the front wheels are engaged ( turning one wheel should turn the other ). The option is to do this after the truck has sat over night, and the vacuum has been released out of the vacuum reservoir.

If the wheels turn correctly ( engaged ) I would think the contact plates in the transfer case are not making contact. Good starting point for this is the connector on the side of the transfer case, some times this gets gummed up, and the pins do not make good contact. The contact plates in the transfer case are used for a few things, one of them is to signal the IWE solenoids to release vacuum to the IWEs.

Operationally vacuum holds the IWE ( Integrated Wheel Ends ) out, and once vacuum is removed the spring engages the IWE.

Here is a black diagram of the IWE vacuum system
sscullys_108.jpg

Feb 05, 2011 | 2004 Ford F150

3 Answers

4wheel drive wont engage


First, start checking the fuses an there is also an electrial activaced switch at the transmission or transfer case that may be bad.

95-96
Your control knob should say 2wd, 4auto, 4low.

First, we need to narrow it down to a transfer case issue, or a front axle issue.
Step 1) Jack up the front end and place it securely on jack stands.
Step 2) Verify that the front driveshaft turns by hand. When turning the front driveshaft by hand, the front wheels may or may not turn. Do not be alarmed if they don't turn. This is normal for your vehicle.
Step 3) Start the vehicle and let it idle. Place your foot firmly on the brakes, place the transmission in NEUTRAL, engage 4low, then place the vehicle back in park. DO NOT ENGAGE ANY GEAR!! The lurch as the transmission engages could cause the vehicle to lurch and potentially fall off the jack stands.**If you can turn the front driveshaft, the transfer case is not locking. This could be due to a mechanical issue with the transfer case itself, or an electrical gremlin with the control system. Start a new thread with the results of your checks, and we'll go from there.
**If the front driveshaft does not turn, the transfer case is locking properly and we need to continue searching.
Step 4) With the front wheels in the air, engine idling in PARK, spin one front wheel. The other wheel should spin the opposite direction. If both wheels spin in opposite directions, then the front axle *should* be properly engaged. Take it for a test drive (after safely lowering it to the ground, of course). If the front wheels do not spin in opposite directions, there is a problem with the front axle. This could be due to a mechanical problem with the diff, or a failure of the center axle disconnect to engage the passenger side axle shaft. Start a new thread with the results of your checks, and we'll go from there.

Troubleshooting the CAD on a 95-96 is a bit more involved than I want to get into here, and the problems can vary widely. This'll get you started.


97-01 4-door and 96-00 Sports
Your control knob should say 4auto, 4high, 4low.
First, we need to narrow it down to a transfer case issue, or a front axle issue.

Step 1) Jack up the front end and place it securely on jack stands.

Step 2) Verify that the front driveshaft turns by hand. When turning the front driveshaft by hand, the front wheels should turn. (If only one turns, don't be alarmed. One wheel sometimes has more resistance in the brakes, bearings, or CV joints. This is normal)
Step 3) Start the vehicle and let it idle in PARK. Engage 4high. DO NOT PUT THE VEHICLE IN GEAR!!! Crawl underneath and see if you can turn the front driveshaft.
**If you can turn the front driveshaft, the transfer case is not locking. This could be due to a mechanical issue with the transfer case itself, or an electrical gremlin with the control system. Start a new thread with the results of your checks, and we'll go from there.
**If the front driveshaft does not turn, the transfer case is locking properly and we need to continue searching.
Step 4) With the front wheels in the air, engine idling in PARK, spin one front wheel. The other wheel should spin the opposite direction. If both wheels spin in opposite directions, then the front axle *should* be properly engaged. Take it for a test drive (after safely lowering it to the ground, of course). If the front wheels do not spin in opposite directions, there is a problem with the front axle. Start a new thread with the results of your checks, and we'll go from there.


'01-'03 Sport and '01-'05 Sport Trac
Your control knob should say 2wd, 4high, 4low

The transfer case in these trucks functions essentially like the 1st-gens' 13-54 t-case. (i.e. it uses a lockup collar engaged by the transfer case shift motor) The troubleshooting procedure is very similar, but you don't need to worry about hubs or center-axle disconnects engaging.

Step 1) Jack up the front end and place it securely on jack stands.
Step 2) Verify that the front driveshaft turns by hand. When turning the front driveshaft by hand, the front wheels should turn. (If only one turns, don't be alarmed. One wheel sometimes has more resistance in the brakes, bearings, or CV joints. This is normal)
Step 3) Start the vehicle and let it idle in PARK. Engage 4high. DO NOT PUT THE VEHICLE IN GEAR!!! Crawl underneath and see if you can turn the front driveshaft.
**If you can turn the front driveshaft, the transfer case is not locking. The shift motor could be falsely reading an incorrect t-case position, or it could be a mechanical issue with the case itself. Start a new thread with the results of your checks, and we'll go from there.
**If the front driveshaft does not turn, the transfer case is locking properly and we need to continue searching.
Step 4) With the front wheels in the air, engine idling in PARK, spin one front wheel. The other wheel should spin the opposite direction. If it does, the system should be properly engaged. Safely lower the vehicle to the ground and take it for a test drive. If the wheels do NOT spin in opposite directions, there is a problem with the front differential or axle. Start a new thread with the results of your checks, and we'll go from there.


Keep us updated.

Dec 16, 2010 | 1996 Ford Explorer

3 Answers

How to disable all wheel drive in jeep grand cherokee 4.7 2004


From what I know about that system I don't think you can without possibly damaging the transfer case and, I don't think you really need to. The way the system works, the front wheels are not really engaged unless the transfer case "sees" slippage or a dis-similar turning speed between front and rear wheels (why it's important to keep all tires exactly the same in size, brand and tread depth) when it sees a difference a coupler inside the case heats up and makes the engagement. On dry ground, there is no slippage and the unit remains in two wheel drive.
Therefore, I'd leave it alone.

May 14, 2010 | 2004 Jeep Grand Cherokee

2 Answers

Is it right for your front drive shaft to turn by hand when in park


i'm assuming you have a 4 wheel drive. If that is the case then yes cause when your in two wheel drive mode the front is in neutral

Oct 16, 2009 | 1999 Chevrolet Silverado 1500

1 Answer

1999 Olsmobile Bravada Vibration


It possible that the drive shaft need to be turn 1/2 turn and re installed, or the balance weight is missing from the drive shaft.

Nov 21, 2008 | 1999 Oldsmobile Bravada

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