Question about 1999 GMC Sierra

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What kind of oil goes in the transfer case for the four wheel drive

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If it's a manual case ( pull stick ) then it's dexron III automatic trans fluid , if it's automatic ( push button ) then use GM part # 12378396

Posted on Jul 26, 2010

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If u have an automatic transfer case[[ states AUTO-4WD on push button]] recommended is to replace with gm s own --auto-trak II part# 123785078 its a synthetic blend [blue] about $12 qt will need two qts u can check with some of the auto stores for a similar product if u have the manual transfer case [[lever activation or NO auto-4wd on button]]] system takes automatic transmission fluid dexron III

Posted on Jul 26, 2010

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Use DEXTRON III,transmission fluid (GMP/N 12346143 or equevalent)
nv241 transfer case 3.13 lit.(2.25 Qt)
nv243 appropriate capacity(2.1 L.),(,2.2qt)

Posted on Jul 28, 2010

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6ya6ya
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SOURCE:

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Posted on Jan 02, 2017

Monster80
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SOURCE: 1999 Silverado Transfer Case Noise

I have the same problem and its in the front axle..Sounds like its in the t case but its the front axle.Make sure all your tires are the same size and same air pressure and the inner front axle seals are not leaking any fluid..

I’m happy to assist further over the phone at https://www.6ya.com/expert/joe_a3369546f8067589

Posted on Mar 29, 2009

tepfy
  • 319 Answers

SOURCE: transmission, rear end & transfer case

ROYAL PURPLE IS THE BEST PRODUCT YOU CAN PUT A DIME INTO

now that my shameless behavior and support of my favorite product is over call Phone: 281-354-8600
and they will tell you what fluid you need for each part. I don't recamend using there motor oil just for driving around because its very expensive but if your just changing it out once a year man you cant do any better than this stuff.
here is there web site check it out for yourself

http://www.royalpurple.com/rp-contact-us.html

You will never go back to anything else after you use this product.

Tepfy

Posted on May 01, 2009

  • 97 Answers

SOURCE: type of oil to use in the transfer case 2002 4 X 4 Isuzu Rodeo

80w.thanks

Posted on Nov 29, 2009

Molson02536
  • 3854 Answers

SOURCE: the front wheel do not spin in four wheel drive.

The 4x4 actuator is working on the transfer case, then the front hub 4x4 actuator may have gone bad and that's located on the front differential. It's common for the clip there to corrode and break and is an easy fix with a new collar pin, at worst it's the diaphragm on the vacuum actuator that is located under the battery tray. There is a vacuum switch on the top of the transfer case, driver side but when that fails, your front hub stay's locked in the on position most of the time. check the vacuum lines and 4X4 actuator in the front differential. Good luck and keep me posted and hope it's a simple vacuum line that may have come loose. You can pick up all these parts at Auto Zone or Parts Source and they will have the step by step instructions for you to get the job done with common tools.

Posted on Dec 24, 2009

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1 Answer

My 98 blazer 4x4 wont work?


Which of these does your vehicle have ?

Transfer Case - NVG 233-NP1 (Two Speed Selectable)
Transfer Case - NVG 136-NP4(One Speed Automatic)

The New Venture Gear NV233 is an electronic shift transfer, with the following three modes of operation, Two-wheel drive high range, Four-wheel drive high range, Four-wheel drive low range. The gear reduction for low range is provided by a planetary gear set. The floor-mounted shifter has been eliminated. A switch, located on the upper right side of the instrument panel, is used to select the operating range. The indicator lamps on the switch show the current mode of operation. When the four-wheel drive has been selected, the four-wheel drive indicator lamp on the switch is designed to turn on when the front axle has engaged.


Automatic Transfer Case
The single speed automatic transfer case system shifts automatically from rear wheel drive to four wheel drive when the transfer case shift control module (TCSCM) senses the difference in rotation speed of the front propeller shaft and the rear propeller shaft . Two vehicle speed sensors, one located at the rear output shaft area of the transfer case, and the other, located at the front output shaft area of the transfer case, send front and rear propeller shaft rotation speed information to the TCSCM.
When the front and rear output shaft rotations remain the same, the TCSCM sends pulse width modulation signals to the encoder/motor to keep the transfer case in rear wheel drive. When the front and rear output shafts rotations are different, the shift control module sends pulse width modulation signals to the encoder/motor to engage the transfer case into four wheel drive.
The system will automatically transfer a percentage of torque to either the front or rear axles as required to stop all wheel slip. When the front and rear output shafts rotations return to the same speed rotation, the shift control module sends pulse width modulation signals to the encoder/motor to position the transfer case back into rear wheel drive.
When the transfer case is engaged into four wheel drive, a lamp indicator on the instrument cluster will light. The automatic transfer case system is completely automated, no transfer case control button switching system is required.

Do you know what diagnostic trouble code's are ?

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 C0374 General System Malfunction
DTC C0376 Front/Rear Shaft Speed Mismatch
DTC C0550 ECU Malfunction
DTC C0611 VIN Information Error
DTC C0895 Device Voltage Malfunction

Not OBD2 engine code's .

Jul 28, 2018 | Cars & Trucks

1 Answer

Can a four wheel drive be converted to a two wheel drive?


Simplest way is to remove your driveline that goes to the front axle from the transfer case.

Feb 01, 2013 | 1999 Ford Explorer

1 Answer

I have a leak in the transfer case, just had the shop replace so seals in the engine and now they say transfer case is leaking shouldn't that have been checked then?


the engine and transfer case are to totally different monsters your transfer case controls the four wheel drive if your engine was leaking oil and they replaced some seals most likely they seen grease and oil on the transfer case and assumed it was leaking from the leaking engine that is directly above it even if you dont use the four wheel drive I would still sugest getting that fixed because the axles still turn inside there and you dont want those bearings drying up and going bad

Jan 25, 2013 | 2004 Hyundai Santa Fe

2 Answers

How do u remove a transfer case


Most suvs have the transfer case linked to the transmission. Best is to take both out at the same time.Generally:
  1. Disconnect the battery
  2. Unplug all wires from the transmission - transfer case unit. Make sure you mark them so you can reconnect them properly
  3. Get inside the car and remove the shift lever(s)
  4. Remove the starter
  5. Remove the clutch slave if there's one or disconnect all cables from the unit
  6. Support the car on stands so you can work easily under it.
  7. Drain the oil from the unit may have 1 or 2 drain plugs
  8. Remove the shafts making sure you marked the alignment where they are joined
  9. Support both the engine and the transmission unit with the appropriate jacks
  10. Unbolt the transmission from the engine
  11. Remove the unit support (s)
  12. Remove the unit from the car.
Important to remember the type of oil that goes in the trans and in the transfer case. They may not be the same. Also, some electrical transfer cases don't use any oil.

Oct 19, 2011 | 2000 Oldsmobile Bravada

1 Answer

My four wheel drive is not working. i replaced the switch on the dash. tried it and all it did when i hit 4-hi both 4-hi and 4-lo blink a few times the it goes back to 2 wheel drive. it did stay in 4-hi...


It's the transfer case motor.I had the same problem exactly and replaced, now it works great. Part is about $100.00 ( aftermarket ) .Ifyou are going to replace yourself you will have to remove front drive shaft and remove yoke from transfer case with an impact wrench for clearance to remove transfer case motor . When you put the new transfer case motor in make sure you line up slot with grove in transfer case motor. Good Luck.

Jan 03, 2011 | 1997 Chevrolet Blazer

1 Answer

95 nissan 4x4 truck. four wheel drive light comes but does'nt en


the front axles have pinon gear box that the shaft from the transfer case goes to, it has a vacuum hose to it or a solenoid actuator check these for proper function this is how the power is turned on to the wheels.

Feb 13, 2010 | 1990 Nissan Hardbody King Cab

3 Answers

What kind of oil do I put into the transfer case? Is that why the computer keeps saying check 4 wheel drive?


no, DO NOT use gear oil. The transfer case uses the same type of automatic transmission fluid that the transmission uses. Is the display saying "service 4x4 switch"? If so it is common and the 4WD indicator light switch is bad and needs replaced. It's only purpose is to tell the driver info center what 4 wheel drive mode the transfer case is in. This switch will not affect the function of the 4 wheel drive. The correct fluid for the transfer case is +4 automatic transmission fluid.

Jul 18, 2009 | 1993 Jeep Grand Cherokee

2 Answers

4x4 wont engage


the motor on the back of the transfer case may be stuck knock on the motor lightly with a hammer when switching the the switch May need a motor

Mar 03, 2009 | 1999 Chevrolet Silverado 1500

1 Answer

Front axle stuck engaged


w9fro..In1995, and other model years, the actuator used to engage the transfer case into four wheel drive is oil filled with a heating element.
When you select four wheel drive the element heats up, the oil expands and engages the transfer case. Unfortunately if the actuator fails, the truck remains in four wheel drive. GM has an improved actuator so the problem does not repeat.
As always, check the basics, power, grounds and switch at floor select before replacing the actuator.
Also, if the truck is truly stuck in four wheel drive, you can tell by turning the truck in a tight circle. If the front end wants to "bunny hop" it is definitely engaged.
Best of luck, let me know.
Regards,

Feb 10, 2009 | 1995 Chevrolet K1500

4 Answers

2001 Chevy Blazer 4 wheel drive


The four wheel drive systems in these vehicles are simple. The push button controls the four wheel drive computer. The computer tells the encoder motor (on transfer case) to shift. When the transfer case shifts there is a vaccum switch on the transfer that is activated which sends vaccum to the accuator under the battery. The accuator pulls a cable to lock the front axle in. This covers all s series trucks and suv's with push button four wheel drive but not with auto or all wheel. Now to answer some questions. If your push button is lit up but will not go in to four high you should try to reset the four wheel drive computer. To reset pull the courtesy light and atc fuses for sixty seconds install fuses then cycle key on and off 5 times. If your transfer case shifts but your front end does not lock in check for vaccum at the switch on the transfer case in and out. If no vaccum out replace switch motormite number 49315 at parts store. If you have vaccum out check accuator.

Jun 02, 2008 | 2001 Chevrolet Blazer

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