Question about 1999 Oldsmobile Bravada

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No 4-wheel, just two-wheel

1999 Oldsmobile bravada. It has smarttrack system or an active transfer case. When in snow it will not ingage the allwheel drive. Are the systems known to go out, or should I start at looking at the fluid in the transfer case and the vacume hose. Thank you for any help that I can get.


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I found a blown fuse

Posted on Nov 16, 2009


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What adjusments need to be made when putting a 4160le into an allwheel drive 1998 bravada transmission, from a 1998 4160le four wheel drive blazer

None, the transmissions are the same. It is the T cases that are different. All wheel drive and four wheel drive T cases are different.

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All wheel drive

The Olds Bravada typically is an all wheel drive model that GM coined as SmartTrack.

Feb 18, 2012 | 1998 Oldsmobile Bravada

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We have a 1999 oldsmobile Bravada. ON a short trip, we heard a clickingnoise under the dash and the "service AWD" light came on. Now the AWD doesnt work at all.... HELP!

Most offen its the encoder motor it is a electric motor the engauges the All wheel drive its located to the passager side of the transfer case and can be bought from auto parts store for around 170.00$

Jun 05, 2011 | 1999 Oldsmobile Bravada

1 Answer

Replace ball joints ? when I turn the wheel the front end seems to bounce.

Are all of your tires worn evenly? Any tire size variation can cause problems with your all wheel drive. Also , the fluid in the transfer case needs to be changed regularly. Use only the correct GM fluid

Mar 10, 2011 | 1999 Oldsmobile Bravada

1 Answer

AWD service light io on all wheel not working

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

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


Probably bad encoder motor on transfer case. Also, make sure GM Auto-TracII "blue" fluid only is in the transfer case. Many encoder motor get stuck in engaged position when they fail. Try "thepartsladi" store on eBay for lowest cost OEM motor, BEWARE AFTERMARKET!

Oct 19, 2009 | 1999 Oldsmobile Bravada

1 Answer


I'll bet you've also got auto locking hubs. If you do, replace them. If you don't, you might have a bad transfer case.

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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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