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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 103 (Front Drive Axle) >> Diagnostic Information and Procedures >> Noisy in Drive

Noisy in Drive

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Noisy in Drive

Checks Action
Excessive pinion to ring gear backlash Adjust the pinion to ring gear backlash. Refer to Backlash Inspection and Adjustment .
Worn pinion and ring gear Replace the pinion and the ring gear. Perform the following procedures:
  1. Differential Carrier Assembly - Disassemble (9.25 Inch Axle) 
  2. Differential Case Assembly Disassemble (8.25 Inch Axle)  or Differential Case Assembly Disassemble (9.25 Inch Axle) 
  3. Differential Case Assembly Assemble (8.25 Inch Axle)  or Differential Case Assembly Assemble (9.25 Inch Axle) 
  4. Pinion Bearing Cup Installation (8.25 Inch Axle w/J 45858)  or Pinion Bearing Cup Installation (8.25/9.25 Inch Axles w/J 36598)  or Pinion Bearing Cup Installation (9.25 Inch Axle w/J 45754) 
  5. Differential Carrier Assembly - Assemble 
Worn pinion bearings Replace the pinion bearings. Perform the following procedures:
  1. Differential Carrier Assembly - Disassemble (9.25 Inch Axle) 
  2. Pinion Bearing Cup Installation (8.25 Inch Axle w/J 45858)  or Pinion Bearing Cup Installation (8.25/9.25 Inch Axles w/J 36598)  or Pinion Bearing Cup Installation (9.25 Inch Axle w/J 45754) 
  3. Differential Carrier Assembly - Assemble 
Loose pinion bearings Adjust the pinion bearings preload. Perform the following procedures:
  1. Differential Carrier Assembly - Disassemble (9.25 Inch Axle) 
  2. Differential Carrier Assembly - Assemble 
  3. Backlash Inspection and Adjustment 
Excessive pinion end play Adjust the pinion end play. Refer to Differential Carrier Assembly - Assemble .
Worn differential bearings Replace the differential bearings. Perform the following procedures:
  1. Differential Carrier Assembly - Disassemble (9.25 Inch Axle) 
  2. Differential Case Assembly Disassemble (8.25 Inch Axle)  or Differential Case Assembly Disassemble (9.25 Inch Axle) 
  3. Differential Case Assembly Assemble (8.25 Inch Axle)  or Differential Case Assembly Assemble (9.25 Inch Axle) 
  4. Differential Carrier Assembly - Assemble 
Loose differential bearings Adjust the differential bearing preload. Perform the following procedures:
  1. Differential Carrier Assembly - Disassemble (9.25 Inch Axle) 
  2. Differential Carrier Assembly - Assemble 
Excessive ring gear runout Replace the ring gear. Perform the following procedures:
  1. Differential Carrier Assembly - Disassemble (9.25 Inch Axle) 
  2. Differential Carrier Assembly - Assemble 
Low oil level Fill the fluid level to specifications with the proper lubricant. Refer to Lubricant Level Inspection - Front Drive Axle (8.25 Inch Axle)  or Lubricant Level Inspection - Front Drive Axle (9.25 Inch Axle) .
Wrong or poor grade oil Drain and refill the system with the proper lubricant. Refer to Lubricant Replacement - Front Drive Axle .
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