Hummer H2. Manual - part 87

CARRIER BEARINGS 

See Intermediate Shaft Support Bearings  

CLUTCH CABLES AND CABLE HOUSINGS 

Clutch Cables and Cable Housings 

Bracket cracked, affecting performance 

A 

Require repair or replacement. 

Bracket cracked, not affecting 
performance 

1 

Suggest repair or replacement. 

Bracket loose, affecting performance 

A 

Require repair or replacement. 

Bracket loose, not affecting 
performance 

1 

Suggest repair or replacement. 

Bracket missing 

C 

Require replacement. 

Broken 

A 

Require replacement. 

Cracked 

A 

Require repair or replacement. 

Disconnected 

A 

Require repair or replacement. 

Frayed 

A 

Require replacement. 

Kinked 

A 

Require repair or replacement. 

Melted 

A 

Require repair or replacement. See note 

below. 

NOTE: Determine cause and correct prior to repair or replacement of part. 

Missing 

C 

Require replacement. 

Noisy 

2 

Suggest repair or replacement. 

Out of adjustment 

B 

Require repair or replacement See note 

below. 

Note: Cable replacement is required if it cannot be adjusted within specifications. 

Routed incorrectly 

2 

Suggest repair. 

Seized 

A 

Require repair or replacement. 

Self-adjuster inoperative 

A 

Require repair or replacement of self-

adjuster. 

Threads damaged 

A 

Require repair or replacement. 

Threads stripped (threads missing) 

A 

Require replacement. 

Condition 

Code 

Procedure 

Broken 

A 

Require replacement. 

Cable bent 

A 

Require replacement. 

Cable binding 

A 

Require repair or replacement. 

Cable mounting loose 

B 

Require repair or replacement. 

Cable out of adjustment 

B 

Require repair or replacement. 

 

1998 Chevrolet Pickup C1500 

Uniform Inspection and Communication Standards DRIVE TRAIN AND TRANSMISSION

  

CLUTCH DISCS (MANUAL TRANSMISSION) 

Clutch Discs (Manual Transmission) 

Frayed 

B 

Require replacement. 

Housing heat-damaged 

1 

Suggest replacement. 

Missing 

C 

Require replacement. 

Noisy 

2 

Suggest repair or replacement. 

Seized 

A 

Require replacement. 

Threads damaged 

A 

Require repair or replacement. 

Threads stripped (threads missing) 

A 

Require replacement. 

Worn, affecting performance 

A 

Require replacement. 

Condition 

Code 

Procedure 

Backing plate cracked 

A 

Require replacement. 

Broken 

A 

Require replacement. 

Contaminated with oil 

A 

Require replacement. 

Damper cushion broken 

A 

Require replacement. 

Damper cushion 
collapsed 

A 

Require replacement. 

Damper spring 
collapsed 

A 

Require replacement. 

Damper spring missing 

C 

Require replacement. See note below. 

NOTE: Not all clutch discs have springs in all spring chambers on the disc. 

Friction material 
cracked through 

B 

Require replacement. 

Friction material flaking 
or chunking 

B 

Require replacement. 

Friction material surface 
cracking 

No service suggested or required. 

Grooved 

B  No service suggested or required unless the pressure plate 

or flywheel is being resurfaced or replaced. In this case, 

replacement of clutch disc is required. 

Ridged 

B  No service suggested or required unless the pressure plate 

or flywheel is being resurfaced or replaced. In this case, 

replacement of clutch disc is required. 

Splines worn, affecting 
performance 

A 

Require replacement. 

Warped 

A 

Require replacement. 

Wear exceeds 
specifications (where 
applicable) 

B 

Require replacement. 

 

1998 Chevrolet Pickup C1500 

Uniform Inspection and Communication Standards DRIVE TRAIN AND TRANSMISSION

  

CLUTCH FORKS 

Clutch Forks 

CLUTCH LINKAGES (MECHANICAL) 

See Linkages (External).  

CLUTCH MASTER CYLINDERS 

Clutch Master Cylinders 

Worn close to the end of 
its useful life 

1 

Suggest replacement. 

Worn, affecting 
performance 

A 

Require replacement. 

Condition 

Code 

Procedure 

Bent 

B 

Require replacement. 

Broken 

A 

Require repair or replacement. 

Cracked 

B 

Require repair or replacement. 

Worn close to the end of its useful life 

1 

Suggest replacement. 

Worn, affecting performance 

A 

Require replacement. 

Condition 

Code 

Procedure 

Cover gasket distorted 

A 

Require replacement of cover gasket. 

Cover gasket gummy 

A 

Require replacement of cover gasket. 

Cylinder leaking fluid from rear of 
bore 

A 

Require repair or replacement. 

Cylinder leaking fluid internally 

A 

Require replacement. 

Dust boot missing 

C 

Require replacement of dust boot. 

Dust boot punctured 

A 

Require replacement of dust boot. 

Dust boot torn 

A 

Require replacement of dust boot. 

Fluid level incorrect 

B 

Require fluid level adjustment. 

Housing damaged, affecting 
performance 

A 

Require repair or replacement. 

Master cylinder has residue in 
reservoir 

2 

Further inspection required. See note 

below. 

NOTE: Do not replace master cylinder unless it exhibits conditions listed for 
replacement. You may suggest fluid change according to OEM service intervals. 

Threads damaged 

A 

Require repair replacement 

Threads stripped (threads missing) 

A 

Require replacement. 

 

1998 Chevrolet Pickup C1500 

Uniform Inspection and Communication Standards DRIVE TRAIN AND TRANSMISSION

  

CLUTCH PEDALS 

Clutch Pedals 

CLUTCH PIVOTS 

Clutch Pivots 

CLUTCH PRESSURE PLATES 

See Pressure Plates.  

CLUTCH RELEASE BEARINGS 

Clutch Release Bearings 

CLUTCH SLAVE CYLINDERS (CONCENTRIC) 

Clutch Slave Cylinders (Concentric) 

Condition 

Code 

Procedure 

Bent, affecting performance 

A 

Require repair or replacement. 

Broken 

A 

Require repair or replacement. 

Pedal pad missing 

C 

Require replacement of pedal pad. 

Pivot bushings worn, affecting 
performance 

A 

Require replacement of pivot 

bushings. 

Condition 

Code 

Procedure 

Bent 

A 

Require replacement. 

Broken 

A 

Require repair or replacement. 

Cracked 

A 

Require repair or replacement. 

Threads damaged 

A 

Require repair or replacement. 

Threads stripped (threads missing) 

A 

Require replacement. 

Worn close to the end of its useful life 

1 

Suggest replacement. 

Worn, affecting performance 

A 

Require replacement. 

Condition 

Code 

Procedure 

Collar broken 

A 

Require replacement. 

Cracked 

A 

Require replacement. 

Rough when rotated as an assembly 

B 

Require replacement. 

Seized 

A 

Require replacement. 

Wear exceeds specifications 

B 

Require replacement. 

Worn close to the end of its useful life 

1 

Suggest replacement. 

Worn, affecting performance 

A 

Require replacement. 

 

1998 Chevrolet Pickup C1500 

Uniform Inspection and Communication Standards DRIVE TRAIN AND TRANSMISSION