Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSOLDSMOBILE2004BRAVADA AWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1335 (TRANSFER CASE - NVG 246-NP8 (TWO SPEED AUTOMATIC))
2004 Oldsmobile Bravada AWD
Section 1335 (Transfer Case - NVG 246-NP8 (Two Speed Automatic))
2004 Oldsmobile Bravada AWDSECTION Section 1335 (Transfer Case - NVG 246-NP8 (Two Speed Automatic))
WARNING: This page is about a different car, the 2002 GMC Yukon XL, 2002 GMC Yukon, 2002 Chevrolet Tahoe, 2002 Chevrolet Suburban, and 2002 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
- Specifications
- Schematic and Routing Diagrams
- Component Locator
- Diagnostic Information and Procedures
- Diagnostic Starting Point - Transfer Case
- Diagnostic System Check - Transfer Case
- Scan Tool Data List
- Scan Tool Data Definitions
- Diagnostic Trouble Code (DTC) List
- DTC B2725
- DTC C0300
- DTC C0305
- DTC C0308
- DTC C0309
- DTC C0310
- DTC C0315
- DTC C0323
- DTC C0324
- DTC C0327
- DTC C0362
- DTC C0367
- DTC C0374
- DTC C0376
- DTC C0387
- DTC C0550
- DTC C0611
- Symptoms - Transfer Case
- Front Axle Will Not Engage
- Front Axle Will Not Disengage
- Transfer Case Will Not Complete a Mode or Range Shift
- Transfer Case Shift Control Switch Inoperative
- No Correction for Slip in AWD Mode
- Service Indicator Always On
- Service Indicator Inoperative
- Transfer Case Shift Control Switch Indicator Always On - Two or More
- Transfer Case Shift Control Switch Indicator Flashes, then Returns to Previous Mode
- Transfer Case Shift Control Switch Indicators Flash Continuously 15 Seconds or More
- Transfer Case Shift Control Switch Indicator Inoperative - One or More
- Transfer Case Popping Noise
- Transfer Case Whine or Rumble Noise
- Transfer Case Growl or Grinding Noise
- Transfer Case Grating Noise
- Transfer Case Clunk in 2HI Only
- Transfer Case Clunk in 4HI
- Transfer Case Clunk in 4LO
- Transfer Case Clunk during Acceleration and Deceleration
- Transfer Case Shudder or Binding
- Transfer Case Leak Diagnosis
- Repair Instructions
- Transfer Case Shield Replacement
- Transfer Case Fluid Replacement
- Transfer Case Motor/Encoder Replacement
- Transfer Case Speed Sensor Replacement (Front)
- Transfer Case Speed Sensor Replacement (Right Rear)
- Transfer Case Speed Sensor Replacement (Left Rear)
- Transfer Case Output Shaft Seal Replacement - Front
- Transfer Case Output Shaft Seal Replacement - Rear
- Transfer Case Assembly Replacement
- Transfer Case Input Shaft Seal Replacement
- Transfer Case Adapter Replacement
- Transfer Case Shift Control Switch Replacement
- Transfer Case Shift Control Module Replacement
- Description and Operation
- Special Tools and Equipment
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.