Hummer H2. Manual — part 948
INTERMITTENT NOISE
Intermittent Noise
CONSTANT NOISE
Constant Noise
NOISY ON TURNS
Noisy on Turns
WHEEL BEARING WEAR - FRONT DRIVE AXLE (TAPERED)
Tapered Roller Bearing Diagnosis
Consider the following factors when diagnosing bearing condition:
z
General condition of all parts during disassembly and inspection.
z
Classify the failure with the aid of the illustrations.
z
Determine the cause.
z
Make all repairs following recommended procedures.
Abrasive Roller Wear
Checks
Action
Warped ring gear
Replace the ring gear. Refer to Differential Carrier Assembly - Disassemble .
Loose differential
case assembly
Set the differential case assembly to the proper preload and backlash. Refer to
Differential Carrier Assembly - Assemble and Backlash Inspection and
Adjustment .
Checks
Action
Flat spot on the pinion or the
ring gear teeth
Replace the pinion and the ring gear. Refer to Differential Carrier
Assembly - Disassemble .
Flat spot on the pinion bearing
Replace the bearing. Refer to Differential Carrier Assembly -
Disassemble .
Worn pinion splines
Replace the pinion. Refer to Differential Carrier Assembly -
Disassemble .
Checks
Action
Worn differential side gears
and pinions
Replace the differential side gears and pinions. Refer to Differential
Case Assembly Disassemble .
Worn differential spider
Replace the spine gears. Refer to Differential Case Assembly
Disassemble .
Worn axle shaft splines
Replace the axle shaft. Refer to Inner Shaft and/or Housing
Replacement - Front Drive Axle .
2004 Hummer H2
2004 DRIVELINE/AXLE Front Drive Axle - Hummer H2
Fig. 2: Abrasive Roller Wear
Courtesy of GENERAL MOTORS CORP.
Pattern on the races and the rollers caused by fine abrasives. Clean all of the parts and the housings. Check the
seals and the bearings. Replace any leaky, rough, or noisy bearings.
Abrasive Step Wear
2004 Hummer H2
2004 DRIVELINE/AXLE Front Drive Axle - Hummer H2
Fig. 3: Abrasive Step Wear
Courtesy of GENERAL MOTORS CORP.
Pattern on the roller ends caused by fine abrasives. Clean all of the parts and the housings. Check the seals and
the bearings. Replace any leaky, rough, or noisy bearings.
Galling
2004 Hummer H2
2004 DRIVELINE/AXLE Front Drive Axle - Hummer H2
Fig. 4: Galling
Courtesy of GENERAL MOTORS CORP.
Metal smears on the roller ends due to overheating, lubricant failure, or lubricant overload. Replace the bearing.
Check the seals. Check for proper lubrication.
Etching
2004 Hummer H2
2004 DRIVELINE/AXLE Front Drive Axle - Hummer H2
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