Section 231 (Transfer Case - Mp 3023/3024-NQH)
WARNING: This page is about a different car, the 2008 GMC Yukon XL, 2008 GMC Yukon, 2008 Chevrolet Tahoe, 2008 Chevrolet Suburban, and 2008 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
- Specifications
- Schematic Wiring Diagrams
- Component Locator
- Diagnostic Information and Procedures
- Diagnostic Code Index
- Diagnostic Starting Point - Transfer Case
- DTC B0770
- DTC B0775
- DTC B0780
- DTC B0785
- DTC B0790
- DTC B2725
- DTC C0306
- Diagnostic Instructions
- DTC Descriptors
- Diagnostic Fault Information
- Circuit/System Description
- Conditions for Running the DTC
- Conditions for Setting the DTC
- Action Taken When the DTC Sets
- Conditions for Clearing the DTC
- Reference Information
- Diagnostic Aids
- Circuit/System Testing
- Component Testing
- Repair Procedures
- DTC C0321
- Diagnostic Instructions
- DTC Descriptor
- Diagnostic Fault Information
- Circuit/System Description
- Conditions for Running the DTC
- Conditions for Setting the DTC
- Action Taken When the DTC Sets
- Conditions for Clearing the DTC
- Reference Information
- Diagnostic Aids
- Circuit/System Testing
- Component Testing
- Repair Procedures
- DTC C0374
- DTC C0379
- DTC C0387
- DTC C0392
- DTC C0396
- DTC C0397
- DTC C0398
- DTC C0550
- DTC C0569
- DTC C0896
- DTC P2160 or P2161
- Diagnostic Instructions
- DTC Descriptors
- Diagnostic Fault Information
- Circuit/System Description
- Conditions for Running the DTC
- Conditions for Setting the DTC
- Action Taken When the DTC Sets
- Conditions for Clearing the DTC
- Diagnostic Aids
- Reference Information
- Circuit/System Verification
- Circuit/System Testing
- Component Testing
- Repair Procedures
- DTC P279A
- DTC P279B
- DTC P279C
- Symptoms - Transfer Case
- Front Axle Will Not Engage
- Front Axle Will Not Disengage
- Transfer Case Shift Control Switch Inoperative
- No Correction for Slip in All-Wheel Drive Mode
- Transfer Case Shift Control Switch Indicator Always On - Two or More
- Transfer Case Shift Control Switch Indicator Inoperative - One or More
- Service Indicator Always On
- Transfer Case High/Low Clutch Reset
- 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 Will Not Shift
- Transfer Case Jumps Out of Gear
- Transfer Case Leak Diagnosis
- Repair Instructions - On Vehicle
- Transfer Case Shift Control Switch Replacement (Without SLT)
- Transfer Case Shift Control Switch Replacement (With SLT)
- Transfer Case Shift Control Module Replacement
- Transfer Case Shield Replacement
- Transfer Case Fluid Replacement
- Transfer Case Two/Four Wheel Drive Actuator Position Sensor Replacement
- Transfer Case Two/Four Wheel Drive Actuator Replacement
- Vehicle Speed Sensor Replacement
- Front Output Shaft Seal Replacement
- Rear Output Shaft Seal Replacement
- Transfer Case Rear Extension Bushing Replacement
- Transfer Case Assembly Replacement
- Transfer Case Adapter Replacement
- Input Shaft Seal Replacement
- Repair Instructions - Off Vehicle
- Transfer Case Disassemble
- Transfer Case Holding Fixture Installation
- Access Hole Plugs, Fill and Drain Plug, Vent, 2/4 Wheel Drive Actuator, Actuator Shaft Position Sensor, and Vehicle Speed Sensor Removal
- Rear Output Shaft Seal and Bushing Removal
- Transfer Case Rear Case Half Removal
- Oil Pump Suction Pipe and Actuator Shaft Gear Removal
- Shift Fork Assembly, Drive Chain, and Rear Output Shaft Assembly Removal
- Rear Output Shaft Assembly Disassemble
- Input Shaft and Planetary Assembly Removal
- Front Output Shaft Assembly Removal
- Transfer Case Front Half Cleaning and Inspection
- Transfer Case Rear Half Cleaning and Inspection
- Oil Pump Cleaning and Inspection
- Rear Output Shaft Cleaning and Inspection
- Front Output Shaft and Input Shaft Cleaning and Inspection
- Drive Chain, Drive Sprocket, and Driven Sprocket Cleaning and Inspection
- High/Low Planetary Carrier Cleaning and Inspection
- High/Low Shift Components Cleaning and Inspection
- Two/Four Wheel Drive Shift Components Cleaning and Inspection
- Transfer Case Four Wheel Drive Actuator Lever Shaft Bearing Replacement - Front
- Transfer Case Four Wheel Drive Actuator Lever Shaft Bearing Replacement - Rear
- Input Shaft Pilot Bearing Replacement (Light Duty)
- Input Shaft Pilot Bearing Replacement (Heavy Duty and Super Heavy Duty)
- Front Output Shaft Front and Rear Bearing Replacement
- Front Output Shaft Drive Sprocket Bearing Replacement
- High/Low Shift Fork Replacement
- Transfer Case Assemble
- Input Shaft and Planetary Assembly Installation
- Measuring Clutch Pack Height
- Clutch Assembly Installation
- Measuring/Adjusting Clutch Assembly Height
- Clutch Pressure Plate Installation
- Rear Output Shaft Assembly
- Shift Fork Assembly, and Rear Output Shaft Assembly Installation
- Front Output Shaft Assembly, Drive Chain, Actuator Shaft Gear, and Oil Pump Suction Pipe Installation
- Transfer Case Rear Case Half Installation
- Rear Output Shaft Seal and Bushing Installation
- Access Hole Plugs, Fill and Drain Plug, Vent, 2/4 Wheel Drive Actuator, Actuator Shaft Position Sensor, and Vehicle Speed Sensor Installation
- Input Shaft Seal and Front Output Shaft Seal Installation
- Transfer Case Disassemble
- Description and Operation
- Transfer Case Identification
- Transfer Case Description and Operation
- Notes
- Transfer Case Shift Control Switch
- 2WD Mode Power Flow
- 4HI Mode Power Flow
- 4LO Mode Power Flow
- NEUTRAL Mode Power Flow
- Service 4WD Indicator
- Transfer Case Two/Four Wheel Drive Incremental Sensor
- Transfer Case Two/Four Wheel Drive Actuator Assembly
- Transfer Case Actuator Shaft Position Sensor Assembly
- Transfer Case Motor Lock
- Transfer Case Shift Control Module
- Vehicle Speed Sensor (VSS)
- Special Tools and Equipment