Transfer Case Grating Noise. Chevrolet Blazer

For 1990-2009 cars only

Makes 🢒 Chevrolet 🢒 2003 🢒 Blazer - 4WD 🢒 Driveline/Axle 🢒 Transfer Case - NVG 236-NP8 🢒 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	Inspect for a broken clutch apply plate. Refer to Transfer Case Disassemble and Transfer Case Assemble in Transfer Case - NVG 236-NP8 Unit Repair. Replace the apply plate and the transfer case components that are damaged from debris. Refer to Transfer Case Disassemble and Transfer Case Assemble in Transfer Case - NVG 236-NP8 Unit Repair.
Faulty clutch apply plate bearing	Inspect for a faulty clutch apply plate bearing. Refer to Transfer Case Cleaning and Inspection in Transfer Case - NVG 236-NP8 Unit Repair. Recondition the transfer case components that are damaged from debris. Refer to Transfer Case Disassemble and Transfer Case Assemble in Transfer Case - NVG 236-NP8 Unit Repair.

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

Inspect for a broken clutch apply plate. Refer to Transfer Case Disassemble and Transfer Case Assemble in Transfer Case - NVG 236-NP8 Unit Repair.
Replace the apply plate and the transfer case components that are damaged from debris. Refer to Transfer Case Disassemble and Transfer Case Assemble in Transfer Case - NVG 236-NP8 Unit Repair.

Faulty clutch apply plate bearing

Inspect for a faulty clutch apply plate bearing. Refer to Transfer Case Cleaning and Inspection in Transfer Case - NVG 236-NP8 Unit Repair.
Recondition the transfer case components that are damaged from debris. Refer to Transfer Case Disassemble and Transfer Case Assemble in Transfer Case - NVG 236-NP8 Unit Repair.