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Home >> Chevrolet >> 2024 >> Tahoe Commercial, 4WD >> Repair and Diagnosis >> Transmission >> Transfer Case >> Transfer Case - Mp 3025 (NQH) - Diagnostic Information And Procedures >> Diagnostic Information and Procedures >> Transfer Case Grating Noise

Transfer Case Grating Noise

Cause Correction
DEFINITION: A faulty internal transfer case component that causes a grating noise in the transfer case while in the AWD, 4HI, or 4LO mode.
Review the Symptoms - Transfer Case  and perform the necessary inspections.
Broken clutch apply plate
  1. Inspect for a broken clutch apply plate. Transfer Case Disassemble , and Transfer Case Assemble
  2. Replace the apply plate and the transfer case components that are damaged from debris. Transfer Case Disassemble , and Transfer Case Assemble
Faulty control actuator lever thrust bearings
  1. Inspect for faulty control actuator lever thrust bearings. Two/Four Wheel Drive Shift Components Cleaning and Inspection
  2. Recondition the transfer case components that are damaged from debris. Transfer Case Disassemble , and Transfer Case Assemble