Question about 2000 Oldsmobile Bravada

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How do I replace transfer case motor 2000 bravada

Motor is held on by 4 small scews- 1 of these is not accessible- do I pull the 3 bolts off the larger cover to get to these screws ?

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  • tershar Jan 13, 2009

    Bravada Owner,


    I don't have an answer for you, but maybe you can help me.  My mechanic said I might need a new transfer case motor.  My AWD light was on and off for a while and now is mostly on.    What has led you to think you need a new transfer case motor?   I have 112,000 miles on my vehicle.   Thanks for any input.

  • kujoe50 Apr 30, 2009

    Yep, these Bravada's go through the transfer case motors AKA encoder motors. Also, you may want to check and or replace the transfer case module, located inside passanger side at the front floor side kick panel. Best thing to do is have a computer scan performed. I am currently dealing with the same issue, AWD light on and AWD does not engage. I just has a new transfer case motor installed 6 months ago. I also noticed the AWD module mentioned above, on the passanger side clicks upon starting the vehicle. Hope this helps you out a bit.

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SOURCE: 2000 bravada

Change Oil in transfer case (AWD) make sure refill ith GM trnsfer case oil may have to be done twice to flush out old gfrease trhat the older or original oil builds up slude orbecomes harden over time Alos make sure you chane both frt & rear Differential (not the rear end oil)but you can do that to it won't hurt had similar noise coimg from mine but dealer cost a lot more i had mine down at Jiffy Lube shop and made sure they did transfer case twivce because that was the recogmendation of GM procedure .That what dealer told me but i didn't want to pay around $400.

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SOURCE: heater core removal 2000 oldsmobile bravada

i belive there is what looks like t perferated line in the plastic where the heater core is that you are suposed to cut to gain access to the heater core. i have never done this but i know several people who have you just need to make sure you get the access door resealed if you go that route or it may affect your heat. remember if you remove the dash instead of the other method you will have to have the a/c system emptied since it also circulates through that box.

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there are 2 bolts that hold the plastic on, I think, 1 on side of trans and 1 behind starter, between starter and engine

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SOURCE: Transfer case 2000 Oldsmobile Bravada how do I fix

This problem is due to poor maintence the best thing you can do is add a lucas transfer case additive if you dont want replace it that is try that.

Posted on Jul 26, 2010

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I turn at slow speeds and my transfer case sticks in awd a little bit. I changed the fluid with the correct autotrac II transfer case fluid twice, but it doesn't completely fix the problem.


ok let me tell you my problem 200 bravada acts like stuck 4wd when slow turns parking lot this is whati did and fixed it first changed fluid tract 2 / 3 times no change replaced module in right kick pnl no change replaced encoder motor no change replaced transfer case with a low mile case no change took old case apart to see what makes it tick i found out that a spring is in there to push the encoder motor back into 2wd and it was not doing its job knowing this is a common problem i took the spring out and streched it and shimed it till it pushed the encoder motor back to 2 wheel drive instaled that spring and shim into the used transfer case that was in the truck wala problem gone the spring is very easy to get at on the bottom of the transfer case is a nut remove it and the spring will come out this is only true till 2001 then the case changed on 02

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When you start the car the 4 wheel high and 4 wheel low indicators light and flash four times,


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this is a verry common problem with the awd bravada a tsb was sent out telling you to change the transfer case fluid to gm tract 2 fluid well let me tell you my story first i am a mechanic of 40 + years i have a 2000 bravada awd i changed the fluid 2 times like the tsb says no fix got a low mile used transfer case instaled it put the trac 2 fluid in it no fix replaced the awd module no fix so i decided to take my old transfer case apart and see what makes it tick i found out that a spring pushes the clutch fork to disingage the front drive shaft clutches the encoder moter applys the fork sending power to the f drive shaft the spring was weak and did not disingage the cluch pack THIS IS AN EASY FIX but you should replace the fluid first if it remains the same then remove the plug in the bottom and i mean the bottom of the transfer case cant miss it it looks like a tall bolt when you remove the plug a spring will come out with it i shimed my spring about a 1/4 inch PROBLEM GONE i tested this on my old transfer case on the bench first and it worked fine i also tryed streching the old spring that did not work maybe replacing the spring with a new one might also work also i would think a new encoder motor might return to rest easer then an old one this spring is what returns the encoder motor and pushes the clutch pack to 2wd

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I have a 2000 bravada and the awd doesn't isn't working. I took to the shop I usually get work done at and they said it was working fine. I am no mechanic but when the front tires aren't moving and you are...


I'm pretty sure the computer controlled NP-136 transfer case (which uses two speed sensors to sense the difference in speed between the front output shaft and the rear output shaft, and engages the front axle accordingly) was installed in 1998 and later models.

These trucks (mine included) use an "Active On Demand" transfer case. Basically its a normal 4x4 transfer case with a big electrically actuated (by way of a motor) clutch that connects the front prop-shaft (which is being spun by the wheels full time) to the transfer case front output. Its all in the transfer case.

Good luck and hope this help, check all the fuses and the wire harness to the encoder motor and replace the encoder motor if it has gone bad. Try bring it to a transmission shop that is familiar with the AWD system on your Bravada. The earlier years were a different system, 1998 was when the change was made. 1997 and earlier use the Borg-Warner 4472, which is always engaged with the use of the viscous coupling. Both were marketed as "SmartTrak" though.

Sounds to me like the transfer case actuator motor is either faulty or it is being told to be on all the time (which it shouldn't be).

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