20 Most Recent 1998 Oldsmobile Bravada Questions & Answers


If the smarttrack light is on, trouble codes are stored. That's your starting point.

1998 Oldsmobile... | Answered on May 02, 2018


somethings hooked up wrong

1998 Oldsmobile... | Answered on Mar 03, 2018


Have you checked for injector pulse and fault codes? Do so.

1998 Oldsmobile... | Answered on Feb 13, 2018


It's a lot of work just to get at the diverter doors/actuators on the HVAC plenum under the dash, as they are near the center of the vehicle. Check YouTube to see a typical view (e.g. for a Blazer or Jimmy)..

1998 Oldsmobile... | Answered on Feb 09, 2018


No vacuum lines ,vent tubes .
Which transfer case ?
Transfer Case - NVG 233-NP1 (Two Speed Selectable)
Transfer Case - NVG 136-NP4(One Speed Automatic)

Encoder Motor not decoder motor ,an why did you replace it two times ?
open for suggestions ,yea take it to a qualified repair shop. Do you know what DTC'S - diagnostic trouble codes 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

1998 Oldsmobile... | Answered on Jan 30, 2018


Olds what model please. Thanks

1998 Oldsmobile... | Answered on Jan 26, 2018


No 4X4 switch on the instrument panel ?
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 DTC'S - diagnostic trouble code's are ?
Auto part stores can't read these , your best bet take it to a qualified repair shop . One that has the knowledge an diagnostic equipment .
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
Without proper factory service an repair info. an diagnostic tools

1998 Oldsmobile... | Answered on Jan 08, 2018


go to then given link and get the solution http://toolsnyou.com/

1998 Oldsmobile... | Answered on Nov 07, 2017


Possibly the engine computer. Have checked out by mechanic. If you need an Enginecomputer call Cam auto computers 866-256-2726. They are good

1998 Oldsmobile... | Answered on Oct 20, 2017


AC not working?

on a hot day it will blow warm/hot air if the AC is turned off or not working

If its hot air and AC is working then i would start by checking the fuse or relay. if its not the fuse/relay then i would look into the heater box there is a door that blocks the hot air

1998 Oldsmobile... | Answered on Jul 28, 2017


Do you have a 4WD Bravada? Or an AWD? If it is AWD, there is no shifting. It is in 4WD Drive all the time.

Do you have something on the dash that allows you to change from 2WD to 4WD HI/Lo? Is so, then check your fuses in the fuse box. You may just have a blown fuse.

1998 Oldsmobile... | Answered on Jul 28, 2017


On this website you find fuse box diagram and description for Oldsmobile Bravada (1998)

Oldsmobile Bravada 1998 fuse box diagram Auto Genius

1998 Oldsmobile... | Answered on Jul 28, 2017


If there is an underbody shield package, you will have to remove it.
crank sensor-wivrmhcp10dwuxilam1201xq-5-0.jpg

1998 Oldsmobile... | Answered on Jun 12, 2017


Disconnect battery ? Hoping for a magical fix ? Battery light on means there is a charging system problem , alternator not the battery . Do you know how to do automotive electrical circuit testing ? If not your best bet , take it to a qualified repair shop .
How To Check Charging System EricTheCarGuy Some of the problems are likely do to a low voltage condition . It would also have the vehicle control modules checked for DTC'S - diagnostic trouble codes ! Doing electrical testing of the circuits of the thing's not working etc... is the way to find the problem .
Electric Testing Techniques You Need to Know
It takes years to learn how to do electrical test correctly . Someone who has no clue shouldn't even try .

1998 Oldsmobile... | Answered on Jun 12, 2017


It's 10A VEH CHMSL FUSE 41 in the underhood bussed electrical center.

1998 Oldsmobile... | Answered on Jun 10, 2017


Where do you have the switch off or auto ? Turn them off !
2
Use the scan tool in order to read the body control module (BCM) current trouble codes.
Is DTC B2575, B2577, or B2600 set as a current code?
--
Go to Diagnostic System Check - Body Control System in Body Control System
Go to Step 3
3
Remove the DRL relay from the underhood bussed electrical center (UBEC).
Do the daytime running lamps remain ON??
--
Go to Step 4
Go to Step 5
Check the headlamp power relay in the underhood fuse / relay box !

1998 Oldsmobile... | Answered on May 27, 2017


Does it have spark , fuel pressure ? If the starter spins the engine an does not start an run , you have a fuel delivery problem or a ignition system problem . There are videos on youtube showing how to test for these .

1998 Oldsmobile... | Answered on May 24, 2017

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