Question about 2000 Oldsmobile Bravada

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2000 olds bravada- service awd lite has been on for awhile. I recently drained and rep[laced the transfer case lubricant. Just yesterday I picked up a bad vibration about 65-70 mph.I am a retired mechanic from the 80's, so to me it feels like a driveline type vibration. Kind of rumbles in the rear, to me it feels like when a tail shaft bushing wears out, but it happend just recently. I just replaced both front hubs and bearings. could it be coming from the transfer case? I am not familiar with smart-trac.

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Posted on Jan 02, 2017

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SOURCE: 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.

Posted on Feb 10, 2009

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SOURCE: 2004 olds bravada lock in awd and dont shift out

Encoder motor might be bad.

Posted on Jul 27, 2009

  • 1 Answer

SOURCE: 2002 oldsmobile bravada smart trac all wheel drive frt tires wont engage

I can tell you exactly when my mechanic can find the part cheap enough for me to afford to replace. He's telling me its the computer sensor that automatically switches to 4WD. For now, he has taken it out so that it is in 2WD. The only thing is that the service AWD light stays on, but it works fine now even though it is only 2WD. I'll worry more about the part when it gets closer to winter. By the way, I think he said the part was $400-500 brand new. We are trying to find an after market or used one.


Posted on Jul 27, 2009

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SOURCE: 2004 Oldsmobile Bravada Transfer case binding

when driving forward or backward there a loud metal hit metal sound causing the vehicle to **** when in motion.

Posted on Nov 17, 2009

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SOURCE: Driveline vibration 2007 Ford Fusion AWD

Has the car even been in an accident? If so it could be a bent frame (worse case), Otherwise the car could be off balance and needing an alignment (Most likely - best case) :)

Posted on Dec 28, 2009

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How do you disconnect AWD on 1999 Olds Bravada

unplug the harness to the AWD actuator under the vehicle by the transfer case

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Feb 10, 2011 | 2000 Oldsmobile Bravada

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Probably a bad transfer case encoder motor. Common problem on Bravadas. Also make sure your transfer case uses only "blue" GM Auto Trac II fluid. Flush once after driving a week with "blue" if you don't find "blue" fluid when origianlly checking. Just temporarily plugging a new encoder motor to harness should get the light to go out. Other less likely problem could be bad AWD control module or fuse.

Jan 08, 2010 | 1998 Oldsmobile Bravada

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When I turn sharpling left or right(like parking) there is a binding noise ,but not driving straight or normal speeds. 0there is a binding

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

Dec 16, 2009 | 2000 Oldsmobile Bravada

1 Answer

AWD on 2K Bravada not working. Service AWD light is on.

Probably encoder motor on transfer case. Try "thepartsladi" store on Ebay for low price OEM motor.

Nov 21, 2009 | 2000 Oldsmobile Bravada

1 Answer

1999 olds bravada smart trac four wheel dosent engage

Probably the transfer case encoder motor. Unplugging it at the wiring harness should make the "service awd or smart trac" light come on. This will tell you the awd controller module is probably OK. Common failure item to Bravada's. Try "thepartsladi" eBay store for lowest price motor, beware aftermarket!!! Also make sure transfer case fluid is "blue" GM Auto-Trak II only! If not bllue when checking change twice after driving for a week with blue fluid.

Oct 21, 2009 | 1999 Oldsmobile Bravada

1 Answer

My poor olds!!

Possibly different tires sizes or bad speed sensors combined with a bad transfer case encoder motor? Try "thepartsladi" eBay store if you have to buy the encoder motor, beware aftermarket parts on Bravada!

Oct 04, 2009 | 2000 Oldsmobile Bravada

1 Answer

Service AWd light is on on my 98 olds bravada

i got a 98 bravada and my AWD light was on, what i did to fix it was replace the transfer case motor and thats all, i did a bunch of research and found out that the transfer case motor is the main conponent with of your AWD it tells the transfer case when to give the front wheels power. try replacing that

Mar 16, 2009 | 2000 Oldsmobile Bravada

3 Answers

2002 oldsmobile bravada smart trac all wheel drive frt tires wont engage

drain the transfer case and check for metal particles in the fluid, there also may be debris bigger than that, try the fluid change in any event then if that doesn't do the trick you will have to overhaul the transfer case, this is a standard transfer case used by light duty trucks and SUV's based on a truck chassis, not the viscious drive type used bt passenger cars like Suburu

Jan 08, 2009 | 2002 Oldsmobile Bravada

1 Answer

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.

Jun 22, 2008 | 2000 Oldsmobile Bravada

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