Transfer Case has malfunctioned and I cannot afford to replace, so I was told that I can simply disconnect the transfer case from the transmission by removing the drive shaft; HOWEVER: this is an AWD and I was not aware that there was a driveshaft between the 2. I thought that there was an input shaft that connects directly into the transmission. I just want to know what I am getting into BEFORE crawling under my Yukon. Thank you! Craig
Awd is 4 wheel drive that has a third diff action between the front drive shaft and the rear drive bshaft
when you select 4wd m, that locks up that diff action
to get answers to this problem you will have to describe the problems that you are experiencing with the transfer case
with transfer cases , they are normally attached to the output shaft of the transmission and then to a place where the drive shafts are connected front and back
it is possible to remove the front drive shaft and lock in the 4wd button and that will drive the rear wheels or remove the rear drive shaft and lock in the 4wd to derive the front axle
you may need to discuss the proposed changes with an accredited transmission shop to get it properly explained
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SOURCE: does the transfer case need removed with the old
Yes...you can either unbolt it from the transmission and take it off first, or remove both as a unit but that makes for very heavy awkward condition I'd avoid.
SOURCE: motor on transfer case
All you need to do is make sure that it is in 2 wheel drive and unplug and unbolt the old one and put the new one on.I will say that in my experience it is usually the control module that is under the passenger side of the dash.let me know if this is of any help
SOURCE: 1999 jimmy 4WD not engaging.
there is also an actuator located on the front axle. check that
SOURCE: Leak coming from transfer case. It leaks right
the trans case is not under a pressure, the fluid is a free flow oiler that gets slung around by chain and gears. are you sure it was the right seal ? DIdnt damage it on install !!? did you over fill the case ? Check rear spline on case and make sure it is not sloppy movement back and forth, up and down. if it is then seal is getting pushed all over and oil seaps past. but you would have a vibration while driving that you would notice. is ther a groove on rear slip yoke that is riding on seal groove. after reading your question again, are you talking about the drive shaft going into the transfercase or the main trans/ transfercase mating area? What is a rear drive live? rear driveline!! as in driveshaft?
2002 GMC Yukon
2002 GMC Yukon
2004 TRANSMISSION Transfer Case - NVG 149-NP (One Speed Automatic) - SUV
2004 TRANSMISSION Transfer Case - NVG 149-NP (One Speed Automatic) - SUV
TRANSFER CASE NO FRONT DRIVE
Transfer Case No Front Drive
Cause
Correction
DEFINITION: The transfer case is not delivering engine torque to the front propeller shaft.
Review the Symptoms - Transfer Case and perform the necessary inspections.
Viscous coupling faulty 1. Inspect the transfer case fluid for being black. If the fluid is
black, it is most likely caused by a viscous coupling failure.
2. Test for a faulty viscous coupling. Refer to Transfer Case
Description and Operation.
3. Disassemble the transfer case. Refer to Transfer Case
Disassemble in Transfer Case - NVG 149-NP3 Unit Repair.
4. Inspect the viscous coupling for a bulged cover. Refer to
Cleaning and Inspection in Transfer Case - NVG 149-NP3 Unit
Repair.
5. Replace the viscous coupling if it is faulty. Refer to Transfer
Case Assemble in Transfer Case - NVG 149-NP3 Unit Repair.
Planetary carrier faulty 1. Disassemble the transfer case. Refer to Transfer Case
Disassemble in Transfer Case - NVG 149-NP3 Unit Repair.
2. Inspect for faulty planetary carrier components. Refer to
Cleaning and Inspection in Transfer Case - NVG 149-NP3 Unit
Repair.
3. Replace any faulty planetary carrier components. Refer to
Transfer Case Assemble in Transfer Case - NVG 149-NP3 Unit
Repair.
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Also, aren't 2001 Yukon's IFS (Not straight axle) meaning that there are CV Joint/Axles connecting each wheel direclty into the transfer case. How will disconnecting the TransferCase from the Transmission stop everything from turning/grinding inside of the Tcase? The wheels and CVA
CVA's still turn when vehicle is in motion which means that something must still be turning inside of the TCase...Correct?
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